| Manufacturer  | Model  | Category  | Sub-Category  | Date   |
| | | | | |
 | O.S. Micro Systems, Inc. | OS-21 | Home computer | Apple 2 clone | 1980s |
| | OS-22 | Home computer | Apple 2 clone | 1980s |
| | | | | |
 | O/E/N Micro Systems Ltd. | CT-2100 | Terminal | | 1986< |
| | CT-5000 | Terminal | | 1986< |
| | | | | |
 | O2 (div. Telefonica) | T-4000 | Special | Editorial system | 1977< |
| | T-410 | Special | Editorial system | 1977< |
| | TDMS System (/GA 18-30) | Minicomputer | | 1972 |
| | TSO | Minicomputer | | 1980< |
| | Xda | PDA (P) | | 2002 |
| | Xda Atom | PDA (P) | | 2000s |
| | Xda Atom Exec | PDA (P) | | 2000s |
| | Xda Atom Life | PDA (P) | | 2007 |
| | Xda Exec | PDA (P) | | 2005 |
| | Xda Flame | PDA (P) | | 2006 |
| | Xda Graphite | PDA (P) | | 2000s |
| | Xda Ignito (=HTC Touch Diamond) | PDA (P) | | 2008 |
| | Xda II | PDA (P) | | 2003 |
| | Xda II Mini | PDA (P) | | 2003 |
| | Xda IIi | PDA (P) | | 2005 |
| | Xda Iis | PDA (P) | | 2004 |
| | Xda IQ | PDA (P) | | 2005 |
| | Xda Mantle (=HTC P6500) | PDA (P) | | 2008 |
| | Xda Mini S | PDA (P) | | 2000s |
| | Xda Neo | PDA (P) | | 2000s |
| | Xda Orbit 2 | PDA (P) | | 2007~ |
| | Xda Serra (=HTC Touch Pro) | PDA (P) | | 2008 |
| | Xda Stealth | PDA (P) | | 2000s |
| | Xda Stellar | PDA (P) | | 2007 |
| | Xda Trion | PDA (P) | | 2000s |
| | Xda Zest | PDA (P) | | 2008 |
| | | | | |
 | OA Comp (div. Group, Inc.) | S1000 Server | Server | | 2003< |
| | S2000 Server | Server | | 2003< |
| | S800 Server | Server | | 2003< |
| | | | | |
 | OAE Orenburg | PK8000 Hobby | Home computer | | 1991 |
| | | | | |
 | Oak Ridge National Laboratory (ORNL) | ORACLE (with Argonne Lab) | Special | Early, IAS machine
| 1953 |
| | | | | |
 | OAMO Zavod Imeni I.A. Likhachova (ZIL) | Besta-88 | Workstation | | 1988 |
| | | | | |
 | OAO "Leningradskiy elektromekhanicheskiy zavod" (LEMZ) (div. Minpribor) | Ritm | | | 1976< |
| | UM-1-NKh
| Special | Industrial | 1967 |
| | | | | |
 | OAO "Osoboe Konstrukorskoe Byuro Protsessor" - Voronez | Gamma | Home computer | ZX clone | 1980s |
| | | | | |
 | OAO "Terminal" - Vinnitsa | Pik | Home computer | ZX clone | 1980s |
| | | | | |
 | OAO NII Argon | BTSVM A-15AR | Special | | 1950s |
| | BTSVM-486-2 | Special | Airborne | 1990s |
| | BTSVM-80 | Special | Airborne | 1990s |
| | BTSVM-90 | Special | Airborne | 1990s |
| | EA 2165 | Special | | 1950s |
| | | | | |
 | OAO Ufa Plant "Promsviaz" | Vychisitel-1 | Special | Guidance computer | 1964 |
| | | | | |
 | OAO Zavod Priborov Avtomaticheskogo Kontrolya  - Orsha (PAK) | Kvant | Home computer | | 1990s |
| | | | | |
 | Obbo SA | Buromat 400E | Office | Accounting computer | 1970< |
| | Obbomatic MBS (= Feilermat MBS) | Office | Accounting computer | 1972< |
| | | | | |
 | Occidental Schools | KIT Z-80 | Home computer | Learn | 1985 |
| | | | | |
 | Océ NV | 8830 | Word processor | | 1986 |
| | | | | |
![?]() | OCS | 8015 | Micro | | 1980s |
| | | | | |
 | Octagon Systems Corp. | 880 | SBC | | 1985< |
| | 882 | SBC | | 1985< |
| | 890 | SBC | | 1985< |
| | | | | |
 | Odell Industries Corp. | System 85 | Micro | | 1978 |
| | | | | |
 | Odeon | HiTab-121 | Tablet (P) | | 2010s |
| | HiTab-701 | Tablet (P) | | 2010s |
| | TVTAB-701 | Tablet (P) | | 2010s |
| | TVTAB-702 | Tablet (P) | | 2010s |
| | | | | |
 | Oettle+Reichler Datentechnik GmbH | MC | Micro | | 1985< |
| | System PC 8000 | Micro | | 1980s |
| | | | | |
 | Office of Naval Research (ONR) | ABEL | Special | Early | 1951 |
| | Cyclone | Special | | 1950s |
| | | | | |
 | Ogsa Sistemi S.p.A. | Ogsa Computer | Micro | | 1983< |
| | | | | |
 | Ohio Scientific Instruments (OSI) | 540 Video Display | Terminal | | 1978< |
| | C2-D | Micro | | 1982< |
| | C3-B | Micro | | 1978 |
| | Challenger 1P | Home computer | | 1978 |
| | Challenger 1P MF Series 2 | Home computer | | 1980 |
| | Challenger 1P Series 2 | Home computer | | 1980 |
| | Challenger 2-4P | Home computer | | 1977 |
| | Challenger 2P | Home computer | | 1979 |
| | Challenger 3 | Home computer | | 1977 |
| | Challenger 400 (In Osi Case) | Home computer | | 1975 |
| | Challenger 400 (Motherboard) | Home computer | | 1975 |
| | Challenger 4P | Home computer | | 1979 |
| | Challenger 4P MF | Home computer | | 1979 |
| | Challenger 8P | Home computer | | 1979 |
| | Challenger 8P DF | Home computer | | 1979 |
| | Challenger I | Home computer | | 1977 |
| | Challenger I Series 2 | Home computer | | 1977 |
| | Challenger II | Home computer | | 1977 |
| | Challenger II Series 2 | Home computer | | 1977 |
| | Challenger III | Home computer | | 1977 |
| | Challenger III MF | Home computer | | 1979 |
| | Challenger LT P | Home computer | | 1977 |
| | MasterKey 220 | Micro | | 1983 |
| | MasterKey 220C | Micro | | 1983 |
| | MasterKey 220E | Micro | | 1983 |
| | MasterKey 230 | Micro | | 1982 |
| | MasterKey 2301 | Micro | | 1983 |
| | MasterKey 230C | Micro | | 1983 |
| | MasterKey 230E | Micro | | 1982 |
| | MasterKey 250 | Micro | | 1982 |
| | MasterKey 330 | Micro | | 1983 |
| | MasterKey 330E | Micro | | 1983 |
| | MasterKey 350 | Micro | | 1982 |
| | Model 500 | SBC | | 1978 |
| | OSI-710 SuperMicro | Micro | | 1985 |
| | OSI-720 SuperMicro | Micro | | 1985 |
| | Superboard II (Model 600) | SBC | | 1978 |
| | Superboard II (Model 610) | SBC | | 1978 |
| | System C1P MF Series 2 | Micro | | 1980< |
| | System C1P Series 2 | Micro | | 1980< |
| | System C2-D | Micro | | 1980< |
| | System C2-NET | Micro | | 1980< |
| | System C2-OEM | Micro | | 1977 |
| | System C3-B | Micro | | 1980< |
| | System C3-C | Micro | | 1980< |
| | System C3-D | Micro | | 1980< |
| | System C3-OEM | Micro | | 1980< |
| | System C4P | Micro | | 1980< |
| | System C4P DF | Micro | | 1980< |
| | System C4P MF | Micro | | 1980< |
| | System C8P | Micro | | 1978 |
| | System C8P DF | Micro | | 1980< |
| | WorkSystem 200 | Micro | | 1984 |
| | WorkSystem 300 | Micro | | 1984 |
| | | | | |
 | OJSC "NIIEVM" - Minsk | ES-1230 (Minsk 9000 series) | Mainframe | IBM 370 comp. | 2004< |
| | ES-1840 | Micro | | 1986 |
| | VM2015 | Micro (P) | Industrial | 2010s |
| | VM2015.M1 | Tablet (P) | Industrial | 2013 |
| | VM2015.M2 | Micro (P) | | 2010s |
| | VM2015.M3 | Micro (P) | Industrial | 2010s |
| | VM2016 | Micro (P) | Industrial | 2010s |
| | VM2305 | Tablet (P) | Industrial | 2012> |
| | VM2306 | Tablet (P) | Industrial | 2012> |
| | VM2306.M | PDA (P) | Data Terminal | 2012> |
| | VM2307.M1 | Tablet (P) | Insustrial | 2012 |
| | VM2401 | Micro (P) | Industrial | 2004< |
| | VM2404 | Micro | Industrial | 2004< |
| | VM2405 | Micro (P) | Industrial | 2007< |
| | VM2406 | Micro | Industrial | 2004< |
| | VM2407 | Micro (P) | Industrial | 2006< |
| | VM2408 | Micro (P) | Industrial | 2006< |
| | VM2409 | Micro | Industrial | 2004< |
| | VM2410 | Micro (P) | Industrial | 2004< |
| | VM2411 | Micro (P) | Industrial | 2004< |
| | VM2411.01 | Micro | Industrial | 2006< |
| | VM2412 | Micro (P) | Industrial | 2004< |
| | VM2414 | Micro (P) | Industrial | 2004< |
| | VM2415 | Micro (P) | Industrial | 2004< |
| | VM2416 | Micro (P) | Industrial | 2006< |
| | VM2417 | Micro | Industrial | 2006< |
| | VM5100 Series | Supercomputer | | 2004< |
| | VM5100.07 (/K-500) | Supercomputer | | 2004< |
| | | | | |
 | Okano (div. Karstadt) | PT-100 | Micro (P) | Palmtop | 1992 |
| | | | | |
 | Oki Electric Industry Co., Ltd. | 710 | | | 1975< |
| | 730 WorkStation | Workstation | | - |
| | 8500/221S | Server | | 1991 |
| | A 10 | Server | | 1989 |
| | A 100 | Micro | | 1989 |
| | DDDP | Special | Dataflow machine | 1982 |
| | if Server 466/SL | Server | | 1994< |
| | if Server 566/SL | Server | | 1994< |
| | if Server TB 6730 | Server | | 1997 |
| | if Server TB LH4 | Server | | 1997 |
| | if Server TB LHr | Server | | 1997 |
| | IF-1000 UNITOPIA/10 | Workstation | | 1985 |
| | IF-1000 UNITOPIA/20AM | Workstation | | 1987 |
| | IF-1000 UNITOPIA/20BM | Workstation | | 1987 |
| | IF-800 Model 10 | Micro | | 1980 |
| | IF-800 Model 20 | Micro | | 1982 |
| | IF-800 Model 30 | Micro | | 1982 |
| | IF-800 Model 50 | Micro | | 1983 |
| | IF-800 Model 60 | Micro | | 1989 |
| | IF-Com7 | Micro | | 1982 |
| | Lettermate 8 | Word processor | | 1984 |
| | Lettermate 80 | Word processor | | 1980 |
| | Lettermate 800 | Word processor | | 1982 |
| | Lettermate 85 | Word processor | | 1983 |
| | Magic Pic (prototype) | PDA (P) | | 1990s |
| | Media Server | Server | | 2000 |
| | MT100N | Terminal | Teleprinter | 1980s |
| | OKI Station 7300/30 | Workstation | | 1996 |
| | OKI Station 7300/75 | Workstation | | 1996 |
| | OKIMINITAC 500 | Minicomputer | | 1967 |
| | OKIMINITAC 5000 | Minicomputer | | 1966 |
| | OKIMINITAC 510 | Minicomputer | | 1966> |
| | OKIMINITAC 610 | Minicomputer | | 1966> |
| | OKIMINITAC 710 | Minicomputer | | 1971 |
| | OKITAC 4000 | Minicomputer | | 1971 |
| | OKITAC 4300 | Minicomputer | | 1969 |
| | OKITAC 4300A | Minicomputer | | 1980 |
| | OKITAC 4300B | Minicomputer | | 1974 |
| | OKITAC 4300C | Minicomputer | | 1972 |
| | OKITAC 4300E | Minicomputer | | 1971 |
| | OKITAC 4300S | Minicomputer | | 1971 |
| | OKITAC 4500 | Minicomputer | | 1970 |
| | OKITAC 4500C | Minicomputer | | 1973 |
| | OKITAC 5000 | Minicomputer | | 1966 |
| | OKITAC 5080 | Minicomputer | Early | 1960 |
| | OKITAC 5090 | Minicomputer | | 1961 |
| | OKITAC 5090A | Minicomputer | | 1961 |
| | OKITAC 5090B | Minicomputer | | 1962 |
| | OKITAC 5090C | Minicomputer | | 1961 |
| | OKITAC 5090D | Minicomputer | | 1961 |
| | OKITAC 5090H | Minicomputer | | 1963 |
| | OKITAC 5090M | Minicomputer | | 1963 |
| | OKITAC 5090P | Minicomputer | | 1962 |
| | OKITAC 5090S | Minicomputer | | 1962 |
| | OKITAC 6000 | Minicomputer | | 1966 |
| | OKITAC 7000 | Minicomputer | | 1966 |
| | OKITAC 7500 | Minicomputer | | 1965 |
| | OKITAC 7700 | Minicomputer | | 1966 |
| | OKITAC 8000 | Minicomputer | | 1970 |
| | OKITAC 8300/32 | Minicomputer | | 1988 |
| | OKITAC 8300/38 | Minicomputer | | 1988 |
| | OKITAC 8300/52 | Minicomputer | | 1990 |
| | OKITAC 8300/58 | Minicomputer | | 1990 |
| | OKITAC 8300/62 | Minicomputer | | 1991 |
| | OKITAC 8300/68 | Minicomputer | | 1991 |
| | OKITAC 9000 A Series | Server | | 1996 |
| | OKITAC 9000 B Series | Workstation | | 1996 |
| | OKITAC 9000 C Series | Workstation | | 1996 |
| | OKITAC 9000 D210 | Server | | 1996 |
| | OKITAC 9000 D250 | Server | | 1996 |
| | OKITAC 9000 D250/2 | Server | | 1996 |
| | OKITAC 9000 D310 | Server | | 1996 |
| | OKITAC 9000 D350 | Server | | 1996 |
| | OKITAC 9000 D350/2 | Server | | 1996 |
| | OKITAC 9000 J Series | Workstation | | 1996 |
| | OKITAC 9000 K Series | Server | | 1996 |
| | OKITAC 9000 R Series | Server | | 1996 |
| | OKITAC 9000/800 (13 models) | Server | | 1992 |
| | OKITAC S 4/10-30 | Workstation | | 1992 |
| | OKITAC S 4/10-40 | Workstation | | 1992 |
| | OKITAC S 4/10-50 | Workstation | | 1992 |
| | OKITAC S 4/20H-150 | Workstation | | 1995 |
| | OKITAC S 4/20H-150MP | Workstation | | 1995 |
| | OKITAC S 4/20H-200 | Workstation | | 1996 |
| | OKITAC S 4/25 | Workstation | | 1989 |
| | OKITAC S 4/50 | Workstation | | 1989 |
| | OKITAC S 4/630MP | Server | | 1991 |
| | OKITAC S 4/670MP | Server | | 1991 |
| | OKITAC S 4/690MP | Server | | 1991 |
| | OKITAC S 4/75 | Workstation | | 1989 |
| | OKITAC Superdome | Server | | 2000 |
| | OKITAC System11 | Office | | 1987 |
| | OKITAC System50/10 | Minicomputer | | 1978 |
| | OKITAC System50/20 | Minicomputer | | 1975 |
| | OKITAC System50/40 | Minicomputer | | 1975 |
| | OKITAC System50/60 | Minicomputer | | 1978 |
| | OKITAC System50V/15 | Minicomputer | | 1982 |
| | OKITAC System50V/45 | Minicomputer | | 1983 |
| | OKITAC System50V/65 | Minicomputer | | 1982 |
| | OKITAC System9 K30 | Office | | 1979 |
| | OKITAC System9 K50 | Office | | 1979 |
| | OKITAC System9 K60 | Office | | 1979 |
| | OKITAC System9 K70 | Office | | 1979 |
| | OKITAC System9 V57/200 | Office | | 1982 |
| | OKITAC System9 V57/300 | Office | | 1982 |
| | OKITAC System9 V57/500 | Office | | 1982 |
| | OKITAC System9 V57/700 | Office | | 1982 |
| | OKITAC System9 V57/800 | Office | | 1984 |
| | OKITAC SystemA10/10 | Office | | 1989 |
| | OKITAC SystemA10/30 | Office | | 1989 |
| | OKITAC SystemA10/30LX | Office | | 1989 |
| | OKITAC SystemA10/50 | Office | | 1989 |
| | OKITAC SystemA10/50LX | Office | | 1989 |
| | OKITAC SystemA10/70 | Office | | 1989 |
| | OKITAC SystemA10/70LX | Office | | 1989 |
| | OKITAC SystemA100 | Office | | 1979 |
| | OKITAC SystemA100/310LX | Office | | 1989 |
| | OKITAC SystemA100/510LX | Office | | 1989 |
| | OKITAC SystemA100/710LX | Office | | 1989 |
| | OKITAC SystemA100/910LX | Office | | 1989 |
| | OKITAC V2250 | Server | | 1998 |
| | OKITEX 100 | Terminal | Teleprinter | 1980s |
| | OKITEX 300 | Terminal | Teleprinter | 1980s |
| | OPC-1 | Mainframe | Early | 1959 |
| | WORD EDITOR-200 | Word processor | | 1979 |
| | | | | |
 | Oki Univac Kaisha, Ltd. (OUK) | OUK 1004 (=UNIVAC 1004) | Mainframe | | 1960s |
| | OUK 1004 II | Mainframe | | 1960s |
| | OUK 1004 III | Mainframe | | 1960s |
| | OUK 1050 (=UNIVAC 1050) | Mainframe | | 1960s |
| | OUK 6000 | Mainframe | | 1960s |
| | OUK 9200 | Mainframe | | 1967 |
| | OUK 9200II | Mainframe | | 1970 |
| | OUK 9250 | Mainframe | | 1971 |
| | OUK 9300 | Mainframe | | 1967 |
| | OUK 9300II | Mainframe | | 1970 |
| | OUK 9350 | Mainframe | | 1971 |
| | OUK 9400 | Mainframe | | 1968 |
| | OUK 9400II | Mainframe | | 1971 |
| | OUK 9700 | Mainframe | | 1971 |
| | OUK 9700II | Mainframe | | 1971 |
| | | | | |
 | Oktyabr GPPO - Kamensk-Uralsky | C100 | Special | Airborne | 1983 |
| | C101 | Special | Airborne | 1991 |
| | C102 | Special | Airborne | 1991 |
| | | | | |
 | Olidata S.p.A. | Alicon A12S | Micro | AIO | 2020~ |
| | Alicon A217 | Micro | AIO | 2020~ |
| | Alicon AIIS | Micro | AIO | 2020~ |
| | Toraton 6/150 | Server | | 1996 |
| | Toraton 6/180 | Server | | 1996 |
| | Toraton 6/200 | Server | | 1996 |
| | | | | |
 | Olimex Ltd. | OLinuXino A10 | SBC | | 2015 |
| | OLinuXino A13 | SBC | | 2015 |
| | OLinuXino A20 | SBC | | 2013 |
| | | | | |
 | Olive Telecom | OlivePad | Tablet (P) | | 2010 |
| | | | | |
 | Olivetti S.p.A. | AD200R | Server | | 2008 |
| | AD300K | Server | | 2013 |
| | AD300N H110 | Server | | 2013 |
| | AD400R | Server | | 2008 |
| | Audit 5 | Office | | 1974 |
| | Audit 5/5005 | Office | | 1978< |
| | Audit 5/5010 A | Office | | 1978< |
| | Audit 5/5010 B | Office | | 1978< |
| | Audit 5/5018 | Office | | 1978< |
| | Audit 5/5020 B | Office | | 1978< |
| | Audit 5/5030 | Office | | 1978< |
| | Audit 6 | Office | | 1975 |
| | Audit 7 | Office | | 1974 |
| | Audit 7/80 | Office | | 1975< |
| | Audit 7/85 | Office | | 1975< |
| | Audit 7/90 | Office | | 1974 |
| | Auditronic 730 | Office | | 1971 |
| | Auditronic 730/1 | Office | | 1971 |
| | Auditronic 770 | Office | | 1969 |
| | Auditronic 771 | Office | | 1971 |
| | BCS 2000 | Office | | 1979 |
| | BCS 2005 | Office | | 1979 |
| | BCS 2017 | Office | | 1982< |
| | BCS 2020 | Office | | 1979 |
| | BCS 2025 | Office | | 1980 |
| | BCS 2030 | Office | | 1979 |
| | BCS 2035 | Office | | 1982 |
| | BCS 2045 | Office | | 1980 |
| | BCS 2099 | Office | | 1981 |
| | BCS 3004 | Office | | 1979 |
| | BCS 3030 | Office | | 1978 |
| | CPS 1050 | Server | Communication processor | 1988 |
| | CPS 1060 | Server | Communication processor | 1988 |
| | CPS 1070 | Server | Communication processor | 1988 |
| | CPS/32 (by Stratus) | Server | Fault tolerant | 1983 |
| | CWP-1 | Word processor | | 1988 |
| | D1000 | Micro (P) | Palmtop | 1991 |
| | D2100 | Micro (P) | Palmtop | 1992 |
| | daVinci | PDA (P) | | 1999 |
| | daVinci DV1 | PDA (P) | | 1998~ |
| | daVinci DV2 | PDA (P) | | 1998~ |
| | daVinci DV3 | PDA (P) | | 1999~ |
| | daVinci DV4 | PDA (P) | | 1998~ |
| | DE-520 | Terminal | | 1973 |
| | DE-521 | Terminal | | 1969< |
| | DE-523 | Terminal | | 1973 |
| | DE-525 | Terminal | | 1975 |
| | ELEA 4000 (=GE 115) | Mainframe | | 1966 |
| | ELEA 4001 (=ELEA 4/115) | Mainframe | | 1964> |
| | ELEA 6000 (Prototype) | Mainframe | | 1962 |
| | ELEA 6001 | Mainframe | | 1961 |
| | ELEA 9002 | Mainframe | Early | 1959 |
| | ELEA 9003 | Mainframe | Early | 1960 |
| | ELEA 9004 | Mainframe | | 1961 |
| | ELEA IV (Prototype) | Mainframe | | 1957 |
| | ET 351 AWS | Word processor | | 1978 |
| | ETS 1005 | Word processor | | 1981 |
| | ETS 1010 WS | Word processor | | 1981 |
| | ETS 1015 | Word processor | | 1982 |
| | ETS 1020 | Word processor | | 1982 |
| | ETS 2040 | Word processor | | 1983 |
| | ETS 2060 | Word processor | | 1983 |
| | ETV 2300 | Word processor | | 1988 |
| | ETV 240 | Word processor | | 1986 |
| | ETV 250 | Word processor | | 1985 |
| | ETV 260 | Word processor | | 1986 |
| | ETV 2700 | Word processor | | 1989 |
| | ETV 2900 | Word processor | | 1988 |
| | ETV 300 | Word processor | | 1983 |
| | ETV 350 | Word processor | | 1984 |
| | ETV 4000S | Word processor | | 1991 |
| | JetWriter Linea 900 | Word processor | | 1994 |
| | JetWriter Linea 910 | Word processor | | 1994 |
| | LSX 3000 Series | Server | | 1989 |
| | LSX 3005 | Server | | 1987 |
| | LSX 3010 | Server | | 1987 |
| | LSX 3018/BS | Server | | 1987 |
| | LSX 3020 | Server | | 1987 |
| | LSX 3025 | Server | | 1987 |
| | LSX 3030 | Server | | 1987 |
| | LSX 3035 | Server | | 1987 |
| | LSX 3040 | Server | | 1987 |
| | LSX 3045 | Server | | 1987 |
| | LSX 3070 | Server | | 1987 |
| | LSX 3080 | Server | | 1987 |
| | LSX 4000 | Server | Fault tolerant | 1990 |
| | LSX 4030 | Server | Fault tolerant | 1990 |
| | LSX 4200 | Server | Fault tolerant | 1990 |
| | LSX 4210 | Server | | 1992 |
| | LSX 4220 | Server | | 1992 |
| | LSX 4230 | Server | | 1992 |
| | LSX 4240 | Server | | 1992 |
| | LSX 4250 | Server | | 1992 |
| | LSX 4260 | Server | | 1992 |
| | LSX 4500 | Server | | 1992 |
| | LSX 4900 | Server | | 1992 |
| | LSX 5010 | Server | | 1991 |
| | LSX 5015 | Server | | 1993 |
| | LSX 5020 | Server | | 1991 |
| | LSX 5025 | Server | | 1993 |
| | LSX 5025 E | Server | | 1994< |
| | LSX 5025E | Server | | 1993 |
| | LSX 5030/1 | Server | | 1992 |
| | LSX 5030/2 | Server | | 1992 |
| | LSX 5030/3 | Server | | 1992 |
| | LSX 5040/1 | Server | | 1992 |
| | LSX 5040/2 | Server | | 1992 |
| | LSX 5040/4E | Server | | 1993 |
| | LSX 5050 | Server | | 2003< |
| | LSX 6450 | Server | | 1992 |
| | LSX 6510 | Server | | 1992 |
| | LSX 6515 | Server | | 1992 |
| | LSX 6520 | Server | | 1992 |
| | LSX 6525 | Server | | 1992 |
| | LSX 6540 | Server | | 1992 |
| | LSX 6545 | Server | | 1992 |
| | LSX 6560/12 | Server | | 1991 |
| | LSX 6560/4 | Server | | 1991 |
| | LSX 6560/6 | Server | | 1991 |
| | LSX 6560/8 | Server | | 1991 |
| | LSX 6565/24 | Server | | 1992 |
| | LSX 6565/4 | Server | | 1992 |
| | LSX 7300 | Server | | 1994 |
| | LSX 7400 | Server | | 1994 |
| | LSX 7700 | Server | | 1994 |
| | LSX 7900 | Server | | 1994 |
| | M 2000 XS 200 | Micro | | 1994 |
| | M10 | Micro (P) | | 1983 |
| | M11 | Micro (P) | | 1987 |
| | M111 | Micro (P) | | 1989 |
| | M15 | Micro (P) | | 1987 |
| | M15 Plus | Micro (P) | | 1980s |
| | M18P Portable (by Corona) | Micro (P) | | 1983 |
| | M20 (L1) | Home computer | | 1983 |
| | M20 BC | Micro | | 1983 |
| | M20 ST | Micro | | 1983 |
| | M200 | Micro | | 1988 |
| | M211 | Micro | | 1989 |
| | M211V | Micro | | 1989 |
| | M223 | Micro | | 1980s |
| | M243 | Micro | | 1980s |
| | M243 Mark IV | Micro | | 1982 |
| | M243 Mark V | Micro | | 1980s |
| | M30 ST (L1) | Workstation | | 1983 |
| | M30DP | Workstation | | 1982 |
| | M35 | Micro | | 1982 |
| | M40 ST (L1) | Minicomputer | | 1983 |
| | M40BC | Workstation | | 1982 |
| | M40DP | Workstation | | 1982 |
| | M44 (L1) | Minicomputer | | 1983 |
| | M5 | Micro | | 1980s |
| | M6 620 Suprema | Server | | 1993 |
| | M6 630 Suprema | Server | | 1994 |
| | M6 640 Suprema | Server | | 1994 |
| | M6 650 DP | Server | | 1996< |
| | M6 670 Suprema | Server | | 1996< |
| | M6 680 DP Suprema | Server | | 1996< |
| | M6 690 DP Suprema | Server | | 1996< |
| | M6 750 Suprema | Server | | 1994 |
| | M6 760 Suprema | Server | | 1994 |
| | M6 770 Suprema | Server | | 1994 |
| | M6 850 | Server | | 1994< |
| | M6 860 | Server | | 1994< |
| | M6 880 | Server | | 1994< |
| | M6 880 Suprema | Server | | 1996< |
| | M6 950 Suprema | Server | | 1996< |
| | M6-650 DP | Workstation | | 2003< |
| | M6-650 DP Pentium 100 (2p) | Workstation | | 1995> |
| | M60 (L1) | Minicomputer | | 1984 |
| | M70 (L1) | Minicomputer | | 1986 |
| | M700 | Workstation | | 1992 |
| | NetFrame (by NetFRAME Systems) | Server | Fault tolerant | 1990 |
| | Netstrada 1000 PentiumPro 200 | Server | | 1995> |
| | NetStrada 1110R | Server | | 1990s |
| | NetStrada 1120R | Server | | 1990s |
| | NetStrada 1200 | Server | | 1990s |
| | NetStrada 1200R | Server | | 1990s |
| | NetStrada 1400 | Server | | 1990s |
| | NetStrada 1500 | Server | | 1990s |
| | NetStrada 1600 | Server | | 2000~ |
| | NetStrada 2600 | Server | | 1990s |
| | NetStrada 2700 | Server | | 1990s |
| | NetStrada 3000 | Server | | 1996 |
| | NetStrada 3200 | Server | | 1998 |
| | NetStrada 3400 | Server | | 1990s |
| | NetStrada 3600 | Server | | 2003< |
| | NetStrada 3700 | Server | | 1990s |
| | NetStrada 3700WS | Server | | 2003< |
| | NetStrada 3800 | Server | | 1990s |
| | NetStrada 5000 | Server | | 1996 |
| | NetStrada 5200 | Server | | 1998 |
| | NetStrada 5400 | Server | | 1990s |
| | NetStrada 5400 Plus | Server | | 1990s |
| | NetStrada 5600 | Server | | 2000~ |
| | NetStrada 7000 (2 models) | Server | | 1996 |
| | NetStrada 7110R | Server | | 1990s |
| | NetStrada 7120R | Server | | 1990s |
| | NetStrada 7200 (2 models) | Server | | 1998 |
| | NetStrada 7210R | Server | | 1990s |
| | NetStrada 7220R | Server | | 1990s |
| | NetStrada 7400 | Server | | 1998 |
| | NetStrada 7600 | Server | | 2000~ |
| | NetStrada 7700R | Server | | 1990s |
| | NetStrada 9400 | Server | | 1998 |
| | OLIBLADE | Server | | 2010s |
| | OLICLUSTER | Server | | 2011 |
| | OliPad 100 (by Malata) | Tablet (P) | | 2011 |
| | OliPad 110 | Tablet (P) | | 2011 |
| | OliPad 3 | Tablet (P) | | 2012 |
| | OliPad 70 Smart | Tablet (P) | | 2011 |
| | OliPad Edu2 | Tablet (P) | | 2010s |
| | OliPad Graphos (by Quanta) | Tablet (P) | | 2012 |
| | OliPad Graphos A10 | Tablet (P) | | 2015 |
| | OliPad Graphos W808 (by EA Excelsior) | Tablet (P) | | 2013 |
| | OliPad Graphos W809 (by EA Excelsior) | Tablet (P) | | 2013 |
| | OliPad Graphos W811 (by EA Excelsior) | Tablet (P) | | 2013 |
| | OliPad Smart | Tablet (P) | | 2011 |
| | OliPad Smart 2 | Tablet (P) | | 2010s |
| | OliPad Smart Evo | Tablet (P) | | 2010s |
| | OliPad Smart Evo4G | Tablet (P) | | 2010s |
| | Olipad W811 | Tablet (P) | | 2013 |
| | OLITWINS | Server | | 2011 |
| | OLUX WS | Server | | 2010s |
| | OMAX 2000 | Server | | 2009 |
| | OMAX 4000 | Server | | 2009 |
| | OXON | Server | | 2009 |
| | P3030 | Micro | | 1978 |
| | P602 | Office | | 1973 |
| | P603 | Office | | 1973 |
| | P6040 | Micro | | 1975 |
| | P6060 | Micro | | 1977 |
| | P6066 | Micro | | 1978 |
| | P652 | Office | | 1969 |
| | Prodest PC-1 HD | Home computer | | 1988 |
| | Prodest PC1 | Home computer | | 1988 |
| | Prodest PC128 (by Thomson) | Home computer | | 1986 |
| | Prodest PC128S | Home computer | | 1987 |
| | PTP 820 (aka Studio 802) | Word processor (P) | | 1992 |
| | PWS 4000 | Workstation | | 1992 |
| | S-14 | Word processor | | 1976< |
| | S-2250 | Micro | | 1984< |
| | S-24 | Word processor | | 1976< |
| | S1000 (/Microdata) | Office | | 1981< |
| | S6000 (/Microdata) | Office | | 1981 |
| | SNX 140 | Server | | 1994 |
| | SNX 140/E | Server | | 1990s |
| | SNX 140/S | Server | | 1995> |
| | SNX 160/E | Server | | 1994 |
| | SNX 160/E | Server | | 1990s |
| | SNX 160/MP | Server | | 1997< |
| | SNX 160/RM | Server | | 1995 |
| | SNX 160/RS | Server | | 1994 |
| | SNX 160/S | Server | | 1994 |
| | SNX 200 (2p) | Server | | 1995< |
| | SNX 200/RM | Server | | 1995 |
| | SNX 200/RM (2p) | Server | | 1990s |
| | SNX 200/RS | Server | | 1995 |
| | SNX 400 | Server | | 1995 |
| | SNX 400/RM | Server | | 1995 |
| | SNX 400/RS | Server | | 1995 |
| | SNX 460 | Server | | 1995 |
| | SNX 460/RM | Server | | 1995 |
| | SNX 460/RS | Server | | 1995 |
| | SP600 (/DEC PDP 11) | Office | | 1981< |
| | Suprema M6 680-DP | Workstation | | 2003< |
| | TC-100 | Terminal | | 1967 |
| | TC-1000 MPS | Terminal | | 1980 |
| | TC-1150 | Terminal | | 1981 |
| | TC-1300 | Terminal | | 1981 |
| | TC-1349 | Terminal | | 1981 |
| | TC-1375 | Terminal | | 1981 |
| | TC-1800 DE | Terminal | | 1980< |
| | TC-270/FOU | Terminal | | 1975 |
| | TC-300 | Terminal | | 1968< |
| | TC-308SH | Terminal | | 1970< |
| | TC-349BI | Terminal | | 1968< |
| | TC-380 | Terminal | | 1968< |
| | TC-480 | Terminal | | 1977 |
| | TC-800 | Terminal | | 1974 |
| | TC-800 ATS | Terminal | | 1976 |
| | TC-800 FTS | Terminal | | 1974 |
| | TC-800 MTS | Terminal | | 1976 |
| | TC-808 | Terminal | | 1977< |
| | TC-838 | Terminal | | 1980 |
| | TC-848 | Terminal | | 1980 |
| | TCV 077 | Terminal | | 1979 |
| | TCV 210 | Terminal | | 1966 |
| | TCV 250 | Terminal | | 1966 |
| | TCV 260 | Terminal | | 1971 |
| | TCV 270 | Terminal | | 1973 |
| | TCV 270/FOU | Terminal | | 1975 |
| | TCV 275 | Terminal | | 1970s |
| | TCV 278 | Terminal | | 1976< |
| | TCV 280 BS-281 | Terminal | | 1978 |
| | TCV 280 BS-286 | Terminal | | 1978 |
| | TCV 287 | Terminal | | 1970s |
| | TCV 370 | Terminal | | 1984< |
| | TCV 378/L2 | Terminal | | 1970s |
| | TCV 450 | Terminal | | 1979 |
| | TE300 | Terminal | | 1968 |
| | TE315 | Terminal | | 1967 |
| | TE318 | Terminal | | 1968 |
| | TE328 | Terminal | | 1968 |
| | TE338 | Terminal | | 1968 |
| | TE339 | Terminal | | 1968 |
| | TE400 | Terminal | | 1975 |
| | TE441 | Terminal | | 1975 |
| | TE500 | Terminal | | 1982 |
| | TE550T | Terminal | | 1983 |
| | TE553 | Terminal | | 1983 |
| | TES401 | Word processor | | 1978 |
| | TES501 | Word processor | | 1976 |
| | TES601 | Word processor | | 1978 |
| | TES701 | Word processor | | 1980< |
| | Vector 5032 | Office | | 1969< |
| | Vector 5511 | Office | Accounting computer | 1970< |
| | Vector 5512 | Office | Accounting computer | 1972< |
| | VTX 19 (/M19) | Terminal | VTX | 1986 |
| | WS 1530 | Terminal | | 1982 |
| | WS 510 | Terminal | | 1994 |
| | WS 580 | Terminal | | 1981 |
| | WS 584 | Terminal | | 1983 |
| | WS 6578 | Terminal | | 1985 |
| | WS 685 | Terminal | | 1990 |
| | WS 785 | Terminal | | 1990~ |
| | WS 885 | Terminal | | 1991 |
| | WS 9700 | Terminal | | 2003< |
| | Xsmall | PDA (P) | | 2000 |
| | | | | |
 | Olson Electronics | MP-232 | Micro | | 1978< |
| | Olson 8 MP-100 | Micro | | 1978 |
| | Olson 8 MP-200 | Micro | | 1978 |
| | Olson 8080 Microcomputer (=BYT-8) | Home computer | | 1976 |
| | | | | |
 | OLT | On-Tab 1012L | Tablet (P) | | 2010s |
| | On-Tab 1012M | Tablet (P) | | 2010s |
| | On-Tab 7011S | Tablet (P) | | 2010s |
| | On-Tab 7012 | Tablet (P) | | 2010s |
| | On-Tab 7012G | Tablet (P) | | 2010s |
| | On-Tab 8012 | Tablet (P) | | 2010s |
| | On-Tab 8012G | Tablet (P) | | 2010s |
| | | | | |
 | Olympia Werke AG | 703 | Office | Accounting computer | 1970< |
| | 708 | Office | Accounting computer | 1970< |
| | 6113 | Word processor | | 1978 |
| | 6200 | Word processor | | 1978 |
| | 6605 | Office | | 1980s |
| | 6610 | Office | | 1970s |
| | 6610 C | Office | | 1970s |
| | 6620 | Office | | 1970s |
| | 7008 | Office | Accounting computer | 1970< |
| | 7018 | Office | Accounting computer | 1970< |
| | Boss A | Micro | | 1981 |
| | Boss B | Micro | | 1981 |
| | Boss C | Micro | | 1981 |
| | Boss D | Micro | | 1981 |
| | Boss M | Micro | | 1981 |
| | DPC-200 (by Daewoo) | Home computer | MSX | 1985 |
| | ETX I Plus | Word processor | | 1986< |
| | ETX II | Word processor | | 1980s |
| | EX100 | Word processor | | 1983< |
| | HHC (=Panasonic RL-H1400) | Pocket (P) | | 1983 |
| | KC 7000 | Office | | 1973 |
| | Olytext 20 | Word processor | | 1983 |
| | OP-544 (=Casio PB-100) | Pocket (P) | | 1983 |
| | OP-545 (=Casio PB-110) | Pocket (P) | | 1983 |
| | OP-644 (=Casio FX-802P) | Pocket (P) | | 1984 |
| | People | Micro | | 1983 |
| | PHC-2 (=Daewoo DPC-200) | Home computer | MSX | 1985 |
| | PHC-28 (=Sanyo PHC-28S) | Home computer | MSX | 1984 |
| | S 4000 | Terminal | | 1972< |
| | | | | |
 | Olympus Corp. | ? | Home computer | MSX | 1980s |
| | | | | |
 | OMC Computers Ltd. | Omega 58000 | Workstation | | 1984 |
| | Omega Iris 3100 series | Workstation | | 1988 |
| | | | | |
 | Omega Industria e Comercio Ltda. | MC-100 | Home computer | Apple 2 clone | 1983 |
| | MC-400 | Home computer | Apple 2 clone | 1984 |
| | MC-4000 | Home computer | Apple 2 clone | 1980s |
| | OM-8088 | Micro | | 1980s |
| | Omega | Micro | | 1980s |
| | | | | |
 | Omega International (SkyTiger) | MID 9712 | Tablet (P) | | 2012 |
| | MID1001 | Tablet (P) | | 2012 |
| | MID1101 | Tablet (P) | | 2012 |
| | MID7000 Star 7 | Tablet (P) | | 2013 |
| | MID7002 | Tablet (P) | | 2012 |
| | MID7003 | Tablet (P) | | 2012 |
| | MID7004 | Tablet (P) | | 2012 |
| | MID7005 | Tablet (P) | | 2012 |
| | MID7031 | Tablet (P) | | 2012 |
| | MID7101 | Tablet (P) | | 2012 |
| | MID7108 | Tablet (P) | | 2012 |
| | MID7132 | Tablet (P) | | 2012 |
| | MID7300 Satellite 7 | Tablet (P) | | 2013 |
| | MID7501 | Tablet (P) | | 2013 |
| | MID7503 Space 7 | Tablet (P) | | 2013 |
| | MID7931 7.75 | Tablet (P) | | 2013 |
| | MID8001 | Tablet (P) | | 2012 |
| | MID8002 | Tablet (P) | | 2012 |
| | MID8003 | Tablet (P) | | 2012 |
| | MID8500 | Tablet (P) | | 2012 |
| | MID8501 Meteor 8 | Tablet (P) | | 2013 |
| | MID9001 | Tablet (P) | | 2012 |
| | MID9711 | Tablet (P) | | 2012 |
| | ST-1001 | Tablet (P) | | 2013 |
| | ST-1002 | Tablet (P) | | 2016 |
| | ST-1301 | Tablet (P) | | 2013 |
| | ST-701 | Tablet (P) | | 2012 |
| | ST-702 | Tablet (P) | | 2012 |
| | ST-703 | Tablet (P) | | 2013 |
| | ST-704 Kids | Tablet (P) | | 2013 |
| | ST-705 | Tablet (P) | | 2016 |
| | ST-901 | Tablet (P) | | 2012 |
| | ST-902 | Tablet (P) | | 2013 |
| | T107 | Tablet (P) | | 2012 |
| | T7500 | Tablet (P) | | 2012 |
| | | | | |
 | Omega Systems, Inc. | C2-D | Micro | | 1980s |
| | C2-OEM | Micro | | 1977 |
| | C4P-MF | Micro | | 1980s |
| | | | | |
 | OMEGABYTE Computer Corp. (OCC) | SolarSERVER XPR | Server | | 1997< |
| | SolarSTATION XP (6 models) | Workstation | | 1997< |
| | SolarSTATION XPR (2 models) | Workstation | | 1997< |
| | Ultramax 170 | Workstation | | 1998< |
| | Ultramax 250 | Workstation | | 1998< |
| | Ultramax 300 | Workstation | | 1998< |
| | | | | |
 | Omera/Segid | Datascope 500 | Terminal | | 1972< |
| | Datascope 800 | Terminal | | 1972< |
| | Datascope 900 | Terminal | | 1970< |
| | | | | |
 | Omicron Computer Technology Ltd. | Merlin | Workstation | | 1994 |
| | | | | |
 | Omni Computer Corp. | Omniterminal | Terminal | | 1981< |
| | | | | |
 | Omni Tech Corp. | Dual PentiumPro 200 | Workstation | | 1995> |
| | Fortris 4000 | Server | | 2003< |
| | OTC-4000F50 | Server | | 2003< |
| | OTC-4001F50 | Server | | 2003< |
| | OTC-5800E2 Pentium 166 (2p) | Workstation | | 1995> |
| | OTC-6300D04 Dual PentiumPro 200 | Workstation | | 1995> |
| | OTC-6300D04 Dual PPro 200 (2p) | Workstation | | 2003< |
| | OTC-6300E2 PentiumPro 200 (2p) | Workstation | | 1995> |
| | OTC-7X00F05 | Server | | 2003< |
| | OTC-7X00F06 | Server | | 2003< |
| | OTC-7X00F40 | Server | | 2003< |
| | OTC-7X01F40 | Server | | 2003< |
| | Percheron GX | Workstation | | 2003< |
| | | | | |
 | Omni-Source, Inc. | OS-26 | Micro | | 1984 |
| | OS-48 | Micro | | 1984 |
| | OS-526 | Micro | | 1984 |
| | OS-548 | Micro | | 1984 |
| | OS-826 | Micro | | 1984 |
| | OS-848 | Micro | | 1984 |
| | | | | |
 | Omnibyte Corp. | MSBC-1 | SBC | | 1985 |
| | OB68K/MMU | SBC | | 1983 |
| | OB68K/MSBC1 | SBC | | 1984 |
| | OB68K/SYS+ | SBC | Development system | 1984< |
| | OB68K/SYSII | SBC | Development system | 1984 |
| | OB68K1A | SBC | | 1981 |
| | VME-1 | SBC | Multibus | 1985< |
| | | | | |
 | OmniComp Computer Corp. | OMNUS-1 | Minicomputer | | 1970 |
| | OMNUS-1/CU | Minicomputer | Communication processor | 1974 |
| | | | | |
 | Omnidata International | Omni Convertible | Micro | | 1984 |
| | | | | |
 | OmniLogic ,Inc. | Omni II | Micro | | 1983 |
| | | | | |
 | Omnitec Data Corp. (div. Nytronics) | 800 | Terminal | | 1970< |
| | 800A | Terminal | | 1970< |
| | 900 | Terminal | | 1970< |
| | | | | |
 | Omnitext, Inc. | Model 1500 (/Nova 1200) | Word processor | | 1976< |
| | | | | |
 | Omnus Computer Corp. | OMNUS 1/C | Minicomputer | Communication processor | 1971 |
| | OMNUS 1/CU | Minicomputer | Communication processor | 1974 |
| | | | | |
 | Omron Tateishi Electronics Corp. | 8025A | Terminal | | 1973 |
| | 8030 | Terminal | | 1976 |
| | 8035 | Terminal | | 1977 |
| | 8038 | Terminal | | 1977 |
| | 8038/UET | Terminal | | 1978 |
| | DM-100 | | | 1976 |
| | LUNA II | Workstation | | 1991 |
| | LUNA SX-8700 | Workstation | | 1987 |
| | LUNA SX-9100 | Workstation | | 1987 |
| | LUNA2010 | Workstation | | 1993 |
| | LUNA88k | Workstation | | 1992 |
| | Massif (aka Toucan) | Micro (P) | Palmtop | 1993 |
| | Massif 2 | Micro (P) | Palmtop | 1990s |
| | | | | |
 | Onda (div. Wisdom Techno) | oBook 10 | Tablet (P) | | 2016 |
| | oBook 10 Pro | Tablet (P) | | 2017 |
| | oBook 10.1 SE | Tablet (P) | | 2016 |
| | oBook 11 | Tablet (P) | | 2016 |
| | oBook 11 Pro 11.6 | Tablet (P) | | 2016 |
| | OBook 20 Plus | Tablet (P) | | 2016 |
| | OBook 20 SE | Tablet (P) | | 2016 |
| | oBook10 SE | Tablet (P) | | 2016 |
| | V10 | Tablet (P) | | 2016 |
| | V10 3G | Tablet (P) | | 2015 |
| | V10 4G | Tablet (P) | | 2016 |
| | V10 Plus | Tablet (P) | | 2016 |
| | V10 Pro | Tablet (P) | | 2016 |
| | V101w | Tablet (P) | | 2015 |
| | V101W 10 Quad | Tablet (P) | | 2014 |
| | V102w | Tablet (P) | | 2014 |
| | V116w | Tablet (P) | | 2015 |
| | V11s Quad Core | Tablet (P) | | 2013 |
| | V18 Pro | Tablet (P) | | 2017 |
| | V701 | Tablet (P) | | 2011 |
| | V701s | Tablet (P) | | 2012 |
| | V702 Fashion | Tablet (P) | | 2012 |
| | V702 Quad | Tablet (P) | | 2015 |
| | V711 | Tablet (P) | | 2011 |
| | V712 | Tablet (P) | | 2012 |
| | V712 Dual Core | Tablet (P) | | 2012 |
| | V719 3G | Tablet (P) | | 2014 |
| | V80 Plus | Tablet (P) | | 2016 |
| | V80 pro | Tablet (P) | | 2018 |
| | V801 | Tablet (P) | | 2012 |
| | V801S | Tablet (P) | | 2016 |
| | V811 | Tablet (P) | | 2012 |
| | V811 Dual Core | Tablet (P) | | 2011 |
| | V812 | Tablet (P) | | 2012 |
| | V813 | Tablet (P) | | 2010s |
| | V813s | Tablet (P) | | 2012 |
| | V818 Mini | Tablet (P) | | 2012 |
| | V819 3G | Tablet (P) | | 2014 |
| | V819 Mini | Tablet (P) | | 2014 |
| | V819i | Tablet (P) | | 2014 |
| | V819w | Tablet (P) | | 2014 |
| | V820 | Tablet (P) | | 2014 |
| | V820w | Tablet (P) | | 2014 |
| | V820w CH 8 | Tablet (P) | | 2015 |
| | V891w | Tablet (P) | | 2014 |
| | V919 3G | Tablet (P) | | 2014 |
| | V919 3G Air 9.7 Dual Boot | Tablet (P) | | 2014 |
| | V919 3G Air Octa | Tablet (P) | | 2014 |
| | V919 3G Core M | Tablet (P) | | 2015 |
| | V919 Air | Tablet (P) | | 2016 |
| | V919 Air Ch 9.7 | Tablet (P) | | 2015 |
| | V961w | Tablet (P) | | 2014 |
| | V971 | Tablet (P) | | 2012 |
| | V971 Dual Core | Tablet (P) | | 2011 |
| | V971T | Tablet (P) | | 2012 |
| | V972 | Tablet (P) | | 2012 |
| | V973 | Tablet (P) | | 2013 |
| | V975 | Tablet (P) | | 2014 |
| | V975i | Tablet (P) | | 2014 |
| | V975M | Tablet (P) | | 2014 |
| | V975s | Tablet (P) | | 2014 |
| | V989 | Tablet (P) | | 2014 |
| | V989 Air Advanced | Tablet (P) | | 2014 |
| | Vi10 Deluxe | Tablet (P) | | 2011 |
| | Vi10 Elite | Tablet (P) | | 2011 |
| | Vi10 Fashion | Tablet (P) | | 2011 |
| | Vi20 Elite | Tablet (P) | | 2012 |
| | Vi30 | Tablet (P) | | 2010s |
| | VI30 Dual Core | Tablet (P) | | 2011 |
| | Vi30 Elite | Tablet (P) | | 2011 |
| | Vi30 Ultimate | Tablet (P) | | 2011 |
| | Vi30w | Tablet (P) | | 2011 |
| | Vi30w Dual Core | Tablet (P) | | 2011 |
| | Vi40 | Tablet (P) | | 2011 |
| | Vi40 Dual Core | Tablet (P) | | 2011 |
| | Vi40 Elite | Tablet (P) | | 2011 |
| | Vi40 Ultimate | Tablet (P) | | 2011 |
| | Vi50 | Tablet (P) | | 2011 |
| | Vi60 | Tablet (P) | | 2011 |
| | Vi60 Ultimate | Tablet (P) | | 2011 |
| | VX580W Deluxe | Tablet (P) | | 2012 |
| | VX610W Fasion | Tablet (P) | | 2011 |
| | Xcellent 10 | Tablet (P) | | 2014 |
| | Xiaoma 11 | Tablet (P) | | 2017 |
| | | | | |
 | One Laptop per Child (OLPC) | XO-1 (by Quanta) | Micro (P) | | 2006 |
| | XO-2 (by Quanta) | Micro (P) | | 2008 |
| | XO-3 (by Quanta) | Micro (P) | | 2010~ |
| | XO-4 (by Quanta) | Micro (P) | | 2012 |
| | | | | |
 | One Netbook | One Mix | Tablet (P) | | 2010s |
| | One Mix 2S Yoga Mini M3-8100Y | Tablet (P) | | 2018 |
| | | | | |
 | One/D Corp. | CPB086 | SBC | | 1982 |
| | | | | |
 | Onion Corp. | Omega2 | SBC | | 2016 |
| | | | | |
 | Onkyo Corp. | SlatePad 10.1 TA2C-A41R3S | Tablet (P) | | 2013 |
| | SlatePad 7 TA07C-A41X1 | Tablet (P) | | 2013 |
| | SlatePad 7 TA07C-A41X1S | Tablet (P) | | 2013 |
| | SlatePad 7 TA07C-C41R1 | Tablet (P) | | 2013 |
| | SlatePad 7 TA07C-C41R1S | Tablet (P) | | 2013 |
| | SlatePad 8 TA08C-A41R1 | Tablet (P) | | 2013 |
| | SlatePad 8 TA08C-A41R1S | Tablet (P) | | 2013 |
| | SlatePad 9.7 TA09C-A41R3 | Tablet (P) | | 2013 |
| | SlatePad 9.7 TA09C-A41R3S | Tablet (P) | | 2013 |
| | SlatePad 9.7 TA09C-B41R3 | Tablet (P) | | 2013 |
| | SlatePad 9.7 TA09C-B41R3S | Tablet (P) | | 2013 |
| | SlatePad TA07C-55R2 | Tablet (P) | | 2014 |
| | SlatePad TA2C-55R3 | Tablet (P) | | 2014 |
| | TA07C-55R2 | Tablet (P) | | 2013 |
| | TA07C-A41X1S | Tablet (P) | | 2012 |
| | TA07C-C41R1 | Tablet (P) | | 2013 |
| | TA08C-A41R1S | Tablet (P) | | 2012 |
| | TA09C-A41R3S | Tablet (P) | | 2012 |
| | TA09C-B41R3S | Tablet (P) | | 2012 |
| | TA117C1 | Tablet (P) | | 2011 |
| | TA117C3 | Tablet (P) | | 2011 |
| | TA2C-74Z8 | Tablet (P) | | 2016 |
| | TA2C-74Z8A | Tablet (P) | | 2017 |
| | TA2C-A25T3H | Tablet (P) | | 2011 |
| | TA2C-A41R3 | Tablet (P) | | 2013 |
| | TA2C-A41R3-2 | Tablet (P) | | 2014 |
| | TA2C-A41R3S | Tablet (P) | | 2012 |
| | TA2C-M8 | Tablet (P) | | 2019 |
| | TAO7C-C41R1S | Tablet (P) | | 2012 |
| | TW08A-87Z8 | Tablet (P) | | 2017 |
| | TW117A4 | Tablet (P) | | 2010 |
| | TW117A4-EM2 | Tablet (P) | | 2010 |
| | TW117A6PH | Tablet (P) | | 2011 |
| | TW217A5 | Tablet (P) | | 2010 |
| | TW21A-A35C5 | Tablet (P) | | 2012 |
| | TW21A-A35C7 | Tablet (P) | | 2012 |
| | TW21A-A35E8 | Tablet (P) | | 2012 |
| | TW21A-A40C5 | Tablet (P) | | 2014 |
| | TW21A-A40C7 | Tablet (P) | | 2014 |
| | TW21A-A40E8 | Tablet (P) | | 2014 |
| | TW21A-B36C5 | Tablet (P) | | 2012 |
| | TW21A-B36C7 | Tablet (P) | | 2012 |
| | TW21A-B36E8 | Tablet (P) | | 2012 |
| | TW21A-B41C5 | Tablet (P) | | 2014 |
| | TW21A-B41C7 | Tablet (P) | | 2014 |
| | TW21A-B41E8 | Tablet (P) | | 2014 |
| | TW2A-73Z9 | Tablet (P) | | 2016 |
| | TW2A-A25Z7CK | Tablet (P) | | 2011 |
| | TW2A-A25Z7D | Tablet (P) | | 2011 |
| | TW2A-A25Z7D-EM | Tablet (P) | | 2011 |
| | TW2A-A25Z7D-Office | Tablet (P) | | 2011 |
| | TW2A-A25Z7H | Tablet (P) | | 2011 |
| | TW2A-A25Z7M | Tablet (P) | | 2012 |
| | TW2A-A25Z7PH | Tablet (P) | | 2011 |
| | TW2B-A31B7PH | Tablet (P) | | 2012 |
| | TW317A5 | Tablet (P) | | 2010 |
| | TW317A7 | Tablet (P) | | 2010 |
| | TW317A7PH | Tablet (P) | | 2011 |
| | TW3A-A31C37H | Tablet (P) | | 2012 |
| | TW3A-A31C38H | Tablet (P) | | 2012 |
| | TW3A-A31C77H | Tablet (P) | | 2012 |
| | TW3A-A31C79H | Tablet (P) | | 2012 |
| | TW3A-A31E87H | Tablet (P) | | 2012 |
| | TW3A-A31E88H | Tablet (P) | | 2012 |
| | TW3A-A35C79 | Tablet (P) | | 2012 |
| | TW3A-A35C79P | Tablet (P) | | 2012 |
| | TW3A-A35C79P | Tablet (P) | | 2013 |
| | TW3A-A35E88 | Tablet (P) | | 2012 |
| | TW3A-A35E88P | Tablet (P) | | 2012 |
| | TW3A-B36C79 | Tablet (P) | | 2012 |
| | TW3A-B36C79P | Tablet (P) | | 2012 |
| | TW3A-B36E88 | Tablet (P) | | 2012 |
| | TW3A-B36E88P | Tablet (P) | | 2012 |
| | | | | |
 | Online Media (div. Acorn) | Set Top Box 1 | Micro | | 1995 |
| | Set Top Box 20 | Micro | | 1996 |
| | | | | |
 | Onset Computer Corp. | CPU-6805A | SBC | | 1984< |
| | CPU-801 | SBC | | 1984< |
| | CPU-8085 | SBC | | 1984< |
| | CPU-8088 | SBC | | 1985< |
| | | | | |
 | Ontel Corp. | 150X | Micro | | 1981 |
| | 1503 | Terminal | | 1982 |
| | 1505 | Terminal | | 1982 |
| | 1507 | Terminal | | 1982 |
| | 4000 Series | Terminal | | 1971 |
| | Amigo | Micro | | 1983 |
| | OP-1 | Word processor | | 1974 |
| | OP-1/15 | Word processor | | 1974 |
| | OP-1/50 | Word processor | | 1980< |
| | OP-1/70 | Word processor | | 1980< |
| | OP-1/R | Word processor | | 1978 |
| | OP-1/RS | Word processor | | 1978 |
| | OP-1/RW | Word processor | | 1979 |
| | OP-164 | Terminal | | 1981< |
| | | | | |
 | Onyx | Apollo 7.0 | Tablet (P) | | 2012 |
| | Aura 7.0 | Tablet (P) | | 2011 |
| | Calypso 9.7 | Tablet (P) | | 2011 |
| | Cronos 7 | Tablet (P) | | 2011 |
| | Iris 8.0 | Tablet (P) | | 2011 |
| | | | | |
 | Onyx Systems, Inc. | 186 Series | Micro | | 1986< |
| | 6001 Series | | | 1986< |
| | C5000T | Micro | | 1982 |
| | C5001/MU | Micro | | 1981 |
| | C5001A | Micro | | 1982 |
| | C5002A | Micro | | 1982 |
| | C5010 Series | Micro | | 1980 |
| | C5011 Series | Micro | | 1986< |
| | C5011D | Micro | | 1983 |
| | C5012 Series | Micro | | 1980 |
| | C5012D | Micro | | 1983 |
| | C5012V | Micro | | 1983 |
| | C6810 Series | Micro | | 1986< |
| | C8000 | Micro | | 1980 |
| | C8001/MU | Micro | | 1981 |
| | C8002 | Micro | | 1980~ |
| | C8002A | Micro | | 1982 |
| | DT/132 | Terminal | | 1982 |
| | DT/80 | Terminal | | 1982 |
| | Onyx 186 | Micro | | 1983 |
| | Sundance | Micro | | 1981 |
| | Sundance II | Micro | | 1982 |
| | Sundance/132 | Micro | | 1982< |
| | System 2000 | Micro | | 1983 |
| | System 2000 (=Mercator MBS 2000) | | | 1982 |
| | System 3000 | Micro | | 1981 |
| | System 3000 | Micro | | 1983 |
| | System 4000 (=Mercator MBS 4000) | | | 1980 |
| | System 5000 (=Mercator MBS 5000) | | | 1982 |
| | | | | |
 | OOO "Kvant" - Zelenograd | BK | Home computer | ZX clone | 1993 |
| | DVK-2 | Micro | | 1983 |
| | Kvant 1 | Home computer | | 1990 |
| | Kvant-BK MC 0530 | Home computer | ZX clone | 1991 |
| | | | | |
 | OOO "PK Akvarius" (Aquarius) | AquaServer PX201 | Server | | 2000s |
| | TG71 | Tablet (P) | | 2010s |
| | | | | |
 | OOO "VELES-Data" | SM1100 | Server | | 2001 |
| | SM1110 | Server | | 2000s |
| | SM1140 | Server | | 2000s |
| | SM1141 | Server | | 2000s |
| | SM1931 | Micro | Industrial | 2001 |
| | SM1934 | Micro | | 2002 |
| | SM1935 | Micro | | 2001 |
| | SM1953 | Micro | | 2006 |
| | | | | |
 | OOO NPF "Sibstar" | Sibstar 128 | Home computer | ZX clone | 1993 |
| | Sibstar 128C | Home computer | ZX clone | 1993 |
| | Sibstar 48 | Home computer | ZX clone | 1993 |
| | Sibstar 48C | Home computer | ZX clone | 1993 |
| | | | | |
 | Op3n Dott (div. Tesco) | 7.85 | Tablet (P) | | 2014 |
| | | | | |
 | Open Concepts International, Inc. | ? | Workstation | SPARC clone | 1990s |
| | | | | |
 | Open University (OU) | Hektor II (PT-502) | Micro | Learn | 1981 |
| | Hektor III | Micro | Learn | 1983 |
| | PT 501 | Home computer | Learn | 1979 |
| | | | | |
 | Opentec Pty Ltd. | ? | Workstation | SPARC clone | 1990s |
| | | | | |
 | Operation Research Group (ORG) | ORG-2100 | Micro | | 1978 |
| | Supermax | Workstation | | 1986 |
| | | | | |
 | Optical Scanning Corp. | OpScan 288 | Special | OCR computer | 1969 |
| | OpScan 37 | Terminal | Scan | 1974 |
| | OpScan 70 | Special | OCR computer | 1969 |
| | | | | |
 | Opticon, Inc. | H-21 | PDA (P) | Data terminal | 2020< |
| | H-22 | PDA (P) | Data terminal | 2020< |
| | H-32 | PDA (P) | Data terminal | 2020< |
| | OPL925 | PDA (P) | Data terminal | 2020< |
| | | | | |
 | Optigraphics Corp. | Markup Station | Workstation | CAD | 1991< |
| | OptiDRAFT | Workstation | CAD | 1990s |
| | Scan Station | Workstation | CAD | 1991< |
| | View Station | Workstation | CAD | 1991< |
| | | | | |
 | Optim Computer Group Plc | 1050 | Micro | | 1984 |
| | Option | Micro | | 1984 |
| | | | | |
 | Optim Computer Ltd. | Amigo | Micro | | 1983 |
| | | | | |
 | Optimus S.A. | LANServer e-2100R | Server | | 2003< |
| | LANServer e-2200R | Server | | 2003< |
| | LANServer e-2300R | Server | | 2003< |
| | LANServer e-4400R | Server | | 2003< |
| | LANServer LE 4300 | Server | | 2003< |
| | LANServer MB 2010 | Server | | 2003< |
| | LANServer MB II | Server | | 2003< |
| | LANServer ME 2300 | Server | | 2003< |
| | LANServer ME 2400 | Server | | 2003< |
| | LANServer ME 3300 | Server | | 2003< |
| | LANServer VE II | Server | | 2003< |
| | SA Lan Server 4000 EP166 | Server | | 2003< |
| | WorkNET | Server | | 2003< |
| | | | | |
 | Optoma Europe Ltd. | Operis-1 | Tablet (P) | | 2004< |
| | ST1510 | Terminal | | 2000s |
| | ST1520 | Terminal | | 2005< |
| | ST1720 (17in) | Terminal | | 2005< |
| | ST300 | SBC | | 2000s |
| | ST320 | SBC | | 2000s |
| | ST325 | Micro | Thin client | 2005< |
| | | | | |
 | Opus Systems, Inc. | 100PM | Workstation | | 1987< |
| | 110PM | Workstation | | 1987< |
| | 220PM | Workstation | | 1987 |
| | 350PM | Workstation | | 1987 |
| | Personal Mainframe 5000 | Workstation | SPARC clone | 1990s |
| | Personal Mainframe 5120 | Workstation | SPARC clone | 1992< |
| | Personal Mainframe 5124 | Workstation | SPARC clone | 1992< |
| | Personal Mainframe 5250 | Workstation | SPARC clone | 1990s |
| | Personal Mainframe 8000 | Workstation | SPARC clone | 1989 |
| | | | | |
 | Opus Technology Ltd. (div. OT Computers) | Prestige P133 Fileserver | Server | | 1997< |
| | Prestige P180 Fileserver | Server | | 1997< |
| | Prestige PentiumPro 200 Server | Server | | 1995> |
| | | | | |
 | Opytno-konstruktorskoye Byuro (OKB-1) | UM-2B (dev.) | Special | Guidance computer | 1950s |
| | | | | |
 | OQO, Inc. | Model 01 | Micro (P) | Palmtop | 2004 |
| | Model 01+ | Micro (P) | Palmtop | 2005 |
| | Model 02 | Micro (P) | Palmtop | 2007 |
| | Model 03 | Micro (P) | Palmtop | 2010 |
| | Model 2+ (prototype) | Micro (P) | Palmtop | 2009 |
| | Model e2 | Micro (P) | Palmtop | 2007 |
| | | | | |
 | Oracle Corp. | CASE Cluster | Supercomputer | | 2011 |
| | Exadata V1 | Server | Database server | 2008 |
| | Exadata V2 | Server | Database server | 2009 |
| | Exadata X2-2 | Server | Database server | 2010 |
| | Exadata X2-8 | Server | Database server | 2010 |
| | Exadata X3-2 | Server | Database server | 2012 |
| | Exadata X3-8 | Server | Database server | 2012 |
| | Exadata X4-2 | Server | Database server | 2013 |
| | Exadata X4-8 | Server | Database server | 2014 |
| | Exadata X5-2 | Server | Database server | 2015 |
| | Exadata X5-8 | Server | Database server | 2015 |
| | Exadata X6-2 | Server | Database server | 2016 |
| | Exadata X6-8 | Server | Database server | 2016 |
| | Exadata X7-2 | Server | Database server | 2017 |
| | Exadata X7-8 | Server | Database server | 2017 |
| | MiniCluster S7-2 | Server | | 2016< |
| | Netra SPARC T4-1 | Server | | 2012~ |
| | Netra SPARC T4-2 | Server | | 2012~ |
| | Red Sky | Supercomputer | | 2010 |
| | SPARC M5-32 | Server | | 2013 |
| | SPARC M6-32 | Server | | 2013 |
| | SPARC M7 | Server | | 2015 |
| | SPARC M8-8 | Server | | 2017 |
| | SPARC T3 | Server | | 2010 |
| | SPARC T3-1 | Server | | 2010 |
| | SPARC T3-2 | Server | | 2010 |
| | SPARC T3-4 | Server | | 2010 |
| | SPARC T4 | Server | | 2011 |
| | SPARC T4-1 | Server | | 2011 |
| | SPARC T4-2 | Server | | 2011 |
| | SPARC T4-4 | Server | | 2011 |
| | SPARC T5-1B | Server | | 2013 |
| | SPARC T5-2 | Server | | 2013 |
| | SPARC T5-4 | Server | | 2013 |
| | SPARC T5-8 | Server | | 2013 |
| | SPARC T7-1 | Server | | 2015 |
| | SPARC T7-2 | Server | | 2015 |
| | SPARC T7-4 | Server | | 2015 |
| | SPARC T8-1 | Server | | 2017 |
| | SPARC T8-2 | Server | | 2017 |
| | SPARC T8-4 | Server | | 2017 |
| | Sun Blade X6275 M2 | Server | | 2010< |
| | Sun Fire T1000 | Server | | 2006 |
| | Sun Fire T2000 | Server | | 2005 |
| | Sun Fire X2270 M2 | Server | | 2010< |
| | Sun Fire X4170 M2 | Server | | 2010< |
| | Sun Fire X4270 M2 | Server | | 2010< |
| | Sun Fire X4470 | Server | | 2010< |
| | SuperCluster M6-32 | Server | | 2013 |
| | SuperCluster M7 | Server | | 2015< |
| | SuperCluster M8 | Server | | 2017 |
| | SuperCluster T4-4 | Server | | 2011 |
| | SuperCluster T5-2 | Server | | 2013 |
| | SuperCluster T5-4 | Server | | 2013 |
| | SuperCluster T5-8 | Server | | 2013 |
| | Vayu | Supercomputer | | 2010 |
| | | | | |
 | Orange Computers, Inc. | Orangepeel | Home computer | Apple 2 clone | 1980s |
| | | | | |
 | Orange Data Systems Ltd. | 8002 | Micro | | 1981 |
| | 8080-16 | Micro | | 1981 |
| | | | | |
 | Orange Plc | P350X Sego 8 | Tablet (P) | | 2014 |
| | SPV | PDA (P) | | 2000s |
| | | | | |
 | Orange Systems | Series 2000 | Workstation | SPARC clone | 1992< |
| | | | | |
 | Orbit Micro Corp. | Astro i70 | Workstation | | 2020< |
| | Rhino D12 | Workstation (P) | | 2020< |
| | Rhino D15 | Workstation (P) | | 2020< |
| | Rhino E12 | Workstation (P) | | 2020< |
| | Rhino E15 | Workstation (P) | | 2020< |
| | Rhino i13 | Workstation (P) | | 2020< |
| | Rhino i17 | Workstation (P) | | 2020< |
| | Rhino i19 | Workstation (P) | | 2020< |
| | Rhino i7 | Workstation (P) | | 2020< |
| | Rhino i9 | Workstation (P) | | 2020< |
| | Rhino M15 | Workstation (P) | | 2020< |
| | Rhino M20 | Workstation (P) | | 2020< |
| | Rhino N11 | Workstation (P) | | 2020< |
| | Rhino N12 | Workstation (P) | | 2020< |
| | Rhino N13 | Workstation (P) | | 2020< |
| | Rhino N14 | Workstation (P) | | 2020< |
| | Rhino N19 | Workstation (P) | | 2020< |
| | Rhino N20 | Workstation (P) | | 2020< |
| | Rhino N22 | Workstation (P) | | 2020< |
| | Rhino N23 | Workstation (P) | | 2020< |
| | Rhino N24 | Workstation (P) | | 2020< |
| | Rhino N30 | Workstation (P) | | 2020< |
| | Rhino X12 | Workstation (P) | | 2020< |
| | Rhino X13 | Workstation (P) | | 2020< |
| | Rhino X14 | Workstation (P) | | 2020< |
| | Rhino X16 | Workstation (P) | | 2020< |
| | Rhino X17 | Workstation (P) | | 2020< |
| | Rhino X18 | Workstation (P) | | 2020< |
| | Rhino X22 | Workstation (P) | | 2020< |
| | Rhino X23 | Workstation (P) | | 2020< |
| | Rhino X25 | Workstation (P) | | 2020< |
| | Rhino X30 | Workstation (P) | | 2020< |
| | Souris C110 | Server | Rack | 2020< |
| | Souris C112 | Server | Rack | 2020< |
| | Souris C123 | Server | Rack | 2020< |
| | Souris C125 | Server | Rack | 2020< |
| | Souris C161 | Server | Rack | 2020< |
| | Souris C221 | Server | Rack | 2020< |
| | Souris C224 | Server | Rack | 2020< |
| | Souris C251 | Server | Rack | 2020< |
| | Souris C311 | Server | Rack | 2020< |
| | Souris C312 | Server | Rack | 2020< |
| | Souris C355 | Server | Rack | 2020< |
| | Souris C405 | Server | Rack | 2020< |
| | Souris C412 | Server | Rack | 2020< |
| | Souris C413 | Server | Rack | 2020< |
| | Souris C414 | Server | Rack | 2020< |
| | Souris C415 | Server | Rack | 2020< |
| | Souris C416 | Server | Rack | 2020< |
| | Souris C417 | Server | Rack | 2020< |
| | Souris C41I | Server | Rack | 2020< |
| | Souris C42i | Server | Rack | 2020< |
| | Souris E112 | Server | Rack | 2020< |
| | Souris E113 | Server | Rack | 2020< |
| | Souris E114 | Server | Rack | 2020< |
| | Souris E151 | Server | Rack | 2020< |
| | Souris E153 | Server | Rack | 2020< |
| | Souris E161 | Server | Rack | 2020< |
| | Souris E204 | Server | Rack | 2020< |
| | Souris E205 | Server | Rack | 2020< |
| | Souris E206 | Server | Rack | 2020< |
| | Souris E207 | Server | Rack | 2020< |
| | Souris E209 | Server | Rack | 2020< |
| | Souris E252 | Server | Rack | 2020< |
| | Souris E259 | Server | Rack | 2020< |
| | Souris E263 | Server | Rack | 2020< |
| | Souris E270 | Server | Rack | 2020< |
| | Souris E310 | Server | Rack | 2020< |
| | Souris E351 | Server | Rack | 2020< |
| | Souris E352 | Server | Rack | 2020< |
| | Souris E355 | Server | Rack | 2020< |
| | Souris E402 | Server | Rack | 2020< |
| | Souris E403 | Server | Rack | 2020< |
| | Souris E409 | Server | Rack | 2020< |
| | Souris E431 | Server | Rack | 2020< |
| | Souris E432 | Server | Rack | 2020< |
| | Souris E461 | Server | Rack | 2020< |
| | Souris M333 | Server | Rack | 2020< |
| | Souris N110 | Server | Rack | 2020< |
| | Souris N112 | Server | Rack | 2020< |
| | Souris N123 | Server | Rack | 2020< |
| | Souris N161 | Server | Rack | 2020< |
| | Souris N221 | Server | Rack | 2020< |
| | Souris N224 | Server | Rack | 2020< |
| | Souris N229 | Server | Rack | 2020< |
| | Souris N311 | Server | Rack | 2020< |
| | Souris N312 | Server | Rack | 2020< |
| | Souris N333 | Server | Rack | 2020< |
| | Souris N351 | Server | Rack | 2020< |
| | Souris N400 | Server | Rack | 2020< |
| | Souris N405 | Server | Rack | 2020< |
| | Souris N411 | Server | Rack | 2020< |
| | Souris N412 | Server | Rack | 2020< |
| | Souris N413 | Server | Rack | 2020< |
| | Souris N414 | Server | Rack | 2020< |
| | Souris N421 | Server | Rack | 2020< |
| | Souris N451 | Server | Rack | 2020< |
| | Souris Q171 | Server | Rack | 2020< |
| | Souris Q471 | Server | Rack | 2020< |
| | Souris T112 | Server | Rack | 2020< |
| | Souris T153 | Server | Rack | 2020< |
| | Souris T161 | Server | Rack | 2020< |
| | Souris T204 | Server | Rack | 2020< |
| | Souris T206 | Server | Rack | 2020< |
| | Souris T209 | Server | Rack | 2020< |
| | Souris T252 | Server | Rack | 2020< |
| | Souris T259 | Server | Rack | 2020< |
| | Souris T261 | Server | Rack | 2020< |
| | Souris T310 | Server | Rack | 2020< |
| | Souris T352 | Server | Rack | 2020< |
| | Souris T354 | Server | Rack | 2020< |
| | Souris T355 | Server | Rack | 2020< |
| | Souris T408 | Server | Rack | 2020< |
| | Souris T409 | Server | Rack | 2020< |
| | Souris T431 | Server | Rack | 2020< |
| | Souris T461 | Server | Rack | 2020< |
| | Souris T464 | Server | Rack | 2020< |
| | Souris T465 | Server | Rack | 2020< |
| | Tagus i15 | Workstation | | 2020< |
| | Tagus i25 | Workstation | | 2020< |
| | Tagus i35 | Workstation | | 2020< |
| | Tagus i55 | Workstation | | 2020< |
| | Tagus i65 | Workstation | | 2020< |
| | Tagus i75 | Workstation | | 2020< |
| | | | | |
 | Orcatech, Inc. | Orca 3000 | Workstation | | 1984< |
| | Orca 3050 | Workstation | | 1984< |
| | | | | |
 | Orcatex, Inc. | Orcatex | Micro | | 1980s |
| | | | | |
 | Orcima Corp. | Solution | Micro | | 1984 |
| | | | | |
 | Ordisor (div. Sofragem) | PCC 1000 (by Pertec) | Micro | | 1981 |
| | PCC 2000 (by Pertec) | Micro | | 1981 |
| | | | | |
 | Ordzhonikidze Plant - Minsk (-> MPOVT) | M-3 | Mainframe | Early | 1957> |
| | MINSK | Mainframe | | 1960s |
| | | | | |
 | Oregon Scientific, Inc. | Osaris | PDA (P) | | 1999 |
| | OSPro | PDA (P) | | 2000 |
| | PD 283 | PDA (P) | | 2000 |
| | PD 293 | PDA (P) | | 2000 |
| | | | | |
 | Oregon State University | ATHENA | Special | | 1960s |
| | NEBULA | Special | | 1965 |
| | | | | |
 | Orga-Tech Ltd. | ? | Terminal | | 1980s |
| | | | | |
 | Orgtechnica AD - Silistra | Orgtech 80/600 | Micro | | 1985 |
| | | | | |
 | Oric Products International Ltd. | Atmos | Home computer | | 1984 |
| | Oric 1 (by Tangerine) | Home computer | | 1983 |
| | Oric 1 16K (B+W label) | Home computer | | 1983 |
| | Oric 1 48K (B+W label) | Home computer | | 1983 |
| | Oric 1 48K (Colour label) | Home computer | | 1983 |
| | Phoenix (Prototype) (aka Nova 800) | Home computer | | 1985 |
| | Stratos (aka IQ164) | Home computer | | 1985 |
| | Telestrat | Home computer | | 1986 |
| | Telestrat II (Prototype) | Home computer | | 1987 |
| | | | | |
 | Oriental Investments Ltd. | AMI II | Home computer | Apple 2 clone | 1980s |
| | AMI II Plus | Home computer | Apple 2 clone | 1980s |
| | | | | |
 | Oriental Precision Co. (OPC) | OP COM | Micro | | 1985 |
| | | | | |
 | Orion Electronic Supplies, Inc. | Orion II | Home computer | Apple 2 clone | 1983 |
| | Orion III | Home computer | | 1984< |
| | | | | |
 | ORION Rádió és Villamossági Vállalat | ADP-2000 | Micro | | 1980s |
| | ADP-2052 | Micro | | 1980s |
| | ADP-2100 | Terminal | | 1970s |
| | GD-71 | Terminal | | 1976< |
| | OBC 64 | Micro | | 1983 |
| | ODS 6800 | Micro | | 1982 |
| | ODT 80 | Micro | | 1983 |
| | ODT 82 | Micro | | 1983< |
| | ORDAS | Terminal | | 1982 |
| | Orion ADP-2052 | Terminal | | 1970s |
| | VTX-960 | Terminal | VTX terminal | 1985< |
| | | | | |
 | Orlov Control Computer Plant | Orbita | Special | | 1970s |
| | | | | |
 | Orro | A950 | Tablet (P) | | 2015 |
| | A960 | Tablet (P) | | 2015 |
| | A970 | Tablet (P) | | 2015 |
| | N920 | Tablet (P) | | 2015 |
| | | | | |
 | Oryol Factory (div. Minpribor) | Raduga-001 | Home computer | ZX clone | 1990s |
| | SM-1810 | Micro | | 1986 |
| | SM-1814 | Micro | | 1986 |
| | SM-1820 | Micro | | 1986 |
| | Spektr 48 | Home computer | ZX clone | 1990 |
| | Spektr-001 | Home computer | Radio-86RK clone | 1986 |
| | Spektr-1 | Home computer | | 1988 |
| | | | | |
 | Osada & Co. | OS-100 | Word processor | | 1982< |
| | | | | |
 | Osaka University | ELVIS | Special | | 1979 |
| | LINKS-1 | Supercomputer | Parallel computer | 1982 |
| | Osaka University Vacuum Tube Computer | Special | Early | 1959 |
| | | | | |
 | Osborne Computer Corp. | Encore | Micro | | 1983 |
| | Executive | Micro (P) | | 1983 |
| | Executive II | Micro (P) | | 1983 |
| | Orizon | Micro (P) | | 1990 |
| | Osborne 08 | Micro (P) | | 1987 |
| | Osborne 1 (Black colour casing) | Micro (P) | | 1981 |
| | Osborne 1 (Tan colour casing) | Micro (P) | | 1981 |
| | Osborne 1 A | Micro (P) | | 1982 |
| | Osborne 3 (aka Encore) | Micro (P) | | 1985 |
| | Osborne 4 (aka Vixon) | Micro (P) | | 1984 |
| | Osborne 5 | Micro (P) | | 1984 |
| | Polo | Micro | | 1984 |
| | Vaden | Micro | | 1984 |
| | Variant 1 | Micro | | 1985< |
| | Vixen | Micro | | 1984 |
| | | | | |
 | OSCOM Oy | Nano | SBC | | 1980 |
| | OSCOM 1000 | SBC | | 1979 |
| | | | | |
 | Osi-Comp Electronics, Inc. | UCT-1 | Terminal | | 1980s |
| | | | | |
 | OSM Computer Corp. | Model 6500 | Micro | S-100 | 1982 |
| | Zeus 2-16B Muse | Micro | | 1983 |
| | Zeus 3X | Micro | | 1983 |
| | Zeus 3X/16 | Micro | | 1984< |
| | Zeus 4 | Micro | | 1982 |
| | Zeus 4 Muse | Micro | | 1983 |
| | Zeus 4/16 | Micro | | 1983 |
| | Zeus 4B | Micro | | 1986< |
| | Zeus Computer System | Micro | | 1981< |
| | Zeus PC | Micro | | 1984 |
| | Zeus V.I. PC/10 TAPE BACKUP | Micro | | 1984 |
| | Zeus V.I. PC/20 TAPE BACKUP | Micro | | 1984 |
| | Zeus V.I.PC | Micro | | 1986< |
| | Zeus XPC | Micro | | 1986< |
| | Zeus XPC/10 | Micro | | 1984 |
| | Zeus XPC/20 | Micro | | 1984 |
| | Zeusmate | Micro | | 1986< |
| | | | | |
 | OTEDA Technology Co., Ltd. (Leagoo) | LeaPad 7 | Tablet (P) | | 2015 |
| | | | | |
 | Otrona Advanced Systems Corp. | 2001 | Micro (P) | | 1984 |
| | Attaché | Micro | PC comp. (-) | 1983 |
| | Attache 8:16 | Micro (P) | | 1983 |
| | | | | |
 | Otto Electronics | OE 1000 | Terminal | | 1978 |
| | | | | |
 | Outbound Systems, Inc. | Notebook 2000 | Micro (P) | Mac clone | 1991 |
| | Notebook 2030 | Micro (P) | Mac clone | 1991 |
| | Notebook 2030A | Micro (P) | Mac clone | 1991 |
| | Notebook 2030E | Micro (P) | Mac clone | 1991 |
| | Notebook 2030S | Micro (P) | Mac clone | 1991 |
| | Notebook 2030V | Micro (P) | Mac clone | 1991 |
| | | | | |
 | Overmax | Base Core 9 | Tablet (P) | | 2012 |
| | Base Core 9+ | Tablet (P) | | 2012 |
| | BaseCore 10 | Tablet (P) | | 2013 |
| | BaseCore 10 II | Tablet (P) | | 2013 |
| | BaseCore 7 | Tablet (P) | | 2013 |
| | BaseOne | Tablet (P) | | 2012 |
| | BaseOne 2 | Tablet (P) | | 2012 |
| | BaseTwo | Tablet (P) | | 2012 |
| | BasicTab | Tablet (P) | | 2012 |
| | BasicTab II | Tablet (P) | | 2012 |
| | Basis 10 | Tablet (P) | | 2012 |
| | Basis 7 | Tablet (P) | | 2012 |
| | Basis 9 | Tablet (P) | | 2012 |
| | Connect | Tablet (P) | | 2012 |
| | DualDrive II | Tablet (P) | | 2013 |
| | DualDrive Max II | Tablet (P) | | 2013 |
| | EduTab 2 7 | Tablet (P) | | 2013 |
| | EduTab 2+ 7 | Tablet (P) | | 2013 |
| | EduTab 2+ 7 X | Tablet (P) | | 2013 |
| | EduTab 3 7 | Tablet (P) | | 2014 |
| | EduTab 7 | Tablet (P) | | 2013 |
| | Exellen | Tablet (P) | | 2013 |
| | FantasyTab | Tablet (P) | | 2015 |
| | IntuTab | Tablet (P) | | 2013 |
| | Livecore 7010 | Tablet (P) | | 2014 |
| | Livecore 7011 | Tablet (P) | | 2015 |
| | Livecore 7020 | Tablet (P) | | 2014 |
| | Livecore 7030 | Tablet (P) | | 2015 |
| | Livecore 7031 | Tablet (P) | | 2016 |
| | Livecore 7040 | Tablet (P) | | 2015 |
| | Livecore 7041 | Tablet (P) | | 2016 |
| | NewBase | Tablet (P) | | 2012 |
| | NewBase 2 | Tablet (P) | | 2013 |
| | NewBase 3 | Tablet (P) | | 2013 |
| | OV-DualDrive | Tablet (P) | | 2012 |
| | OV-DualDrive Max | Tablet (P) | | 2012 |
| | OV-SteelCore | Tablet (P) | | 2012 |
| | OV-TB-07 | Tablet (P) | | 2012 |
| | OV-TB-08 | Tablet (P) | | 2012 |
| | OV-TB-08 II | Tablet (P) | | 2012 |
| | Qualcore 1010 | Tablet (P) | | 2015 |
| | Qualcore 1010 X | Tablet (P) | | 2013 |
| | Qualcore 1010 Y | Tablet (P) | | 2013 |
| | Qualcore 1020 3G | Tablet (P) | | 2015 |
| | Qualcore 1021 3G | Tablet (P) | | 2016 |
| | Qualcore 1030 3G | Tablet (P) | | 2015 |
| | Qualcore 1031 4G | Tablet (P) | | 2016 |
| | Qualcore 1032 4G | Tablet (P) | | 2016 |
| | Qualcore 7010 | Tablet (P) | | 2013 |
| | Qualcore 7020 | Tablet (P) | | 2014 |
| | Qualcore 7021 | Tablet (P) | | 2015 |
| | Qualcore 7022 | Tablet (P) | | 2016 |
| | Qualcore 7022 3G | Tablet (P) | | 2015 |
| | Qualcore 7030 | Tablet (P) | | 2016 |
| | Qualcore 9010 | Tablet (P) | | 2015 |
| | Quantum 700N Lite | Tablet (P) | | 2015 |
| | Quattor 10+ | Tablet (P) | | 2013 |
| | Quattor 7 | Tablet (P) | | 2013 |
| | Quattor 7 II | Tablet (P) | | 2013 |
| | Qulacore 7030 4G | Tablet (P) | | 2016 |
| | Solution 10 | Tablet (P) | | 2013 |
| | Solution 10 II | Tablet (P) | | 2013 |
| | Solution 10+ | Tablet (P) | | 2013 |
| | Solution 7 | Tablet (P) | | 2013 |
| | Solution 7 II | Tablet (P) | | 2013 |
| | Solution 7 III | Tablet (P) | | 2013 |
| | Solution 7+ | Tablet (P) | | 2013 |
| | Solution 7+ 2.0 | Tablet (P) | | 2013 |
| | Solution 8 | Tablet (P) | | 2013 |
| | Steelcore 10 Gear | Tablet (P) | | 2013 |
| | SteelCore 10 III | Tablet (P) | | 2013 |
| | SteelCore 10+ II | Tablet (P) | | 2013 |
| | SteelCore 1010 | Tablet (P) | | 2014 |
| | SteelCore 1011 | Tablet (P) | | 2014 |
| | SteelCore 1020 | Tablet (P) | | 2016 |
| | SteelCore 1020 3G | Tablet (P) | | 2015 |
| | SteelCore 7 | Tablet (P) | | 2013 |
| | SteelCore 7 II | Tablet (P) | | 2013 |
| | SteelCore 8 | Tablet (P) | | 2012 |
| | Stream | Tablet (P) | | 2012 |
| | TeddyTab 5 | Tablet (P) | | 2013 |
| | | | | |
 | Owens-Illinois, Inc. | 80-33 | Terminal | | 1972 |
| | Digivue | Terminal | | 1972 |
| | | | | |
 | Owl Electronic Laboratories, Inc. | BMA-E2M | Micro | | 1980< |
| | BMS-12 | Micro | | 1980< |
| | BMS-12FO | Micro | | 1980< |
| | | | | |
 | Oyster Terminals Ltd. | 8 | Terminal | | - |
| | OT20 | Terminal | | 2000s |
| | OT40 | Terminal | | 2000s |
| | PT20 | Terminal | | 2000s |
| | PT60 | Terminal | | 2000s |
| | | | | |
 | Oysters | 7X | Tablet (P) | | 2014 |
| | T102ER | Tablet (P) | | 2015 |
| | T102MS | Tablet (P) | | 2015 |
| | T104 HMi | Tablet (P) | | 2014 |
| | T104 Rwi | Tablet (P) | | 2015 |
| | T104 WSi | Tablet (P) | | 2015 |
| | T104B | Tablet (P) | | 2016 |
| | T104ER | Tablet (P) | | 2016 |
| | T104HMi | Tablet (P) | | 2014 |
| | T104W | Tablet (P) | | 2010s |
| | T104WMi | Tablet (P) | | 2015 |
| | T12 | Tablet (P) | | 2014 |
| | T14N | Tablet (P) | | 2014 |
| | T62i | Tablet (P) | | 2015 |
| | T72 | Tablet (P) | | 2014 |
| | T72H | Tablet (P) | | 2014 |
| | T72HMi | Tablet (P) | | 2015 |
| | T72HS | Tablet (P) | | 2014 |
| | T72HSi | Tablet (P) | | 2014 |
| | T72M | Tablet (P) | | 2014 |
| | T72MR | Tablet (P) | | 2015 |
| | T72MS | Tablet (P) | | 2015 |
| | T72V | Tablet (P) | | 2013 |
| | T72X | Tablet (P) | | 2014 |
| | T74 Mai | Tablet (P) | | 2015 |
| | T74D | Tablet (P) | | 2017 |
| | T74ER | Tablet (P) | | 2015 |
| | T74HMi | Tablet (P) | | 2016 |
| | T74HS | Tablet (P) | | 2014 |
| | T74MR | Tablet (P) | | 2015 |
| | T74MS | Tablet (P) | | 2015 |
| | T74N | Tablet (P) | | 2016 |
| | T74RD | Tablet (P) | | 2017 |
| | T7X | Tablet (P) | | 2014 |
| | T80 | Tablet (P) | | 2014 |
| | T82 | Tablet (P) | | 2014 |
| | T82P | Tablet (P) | | 2014 |
| | T84 | Tablet (P) | | 2013 |
| | T84Hri | Tablet (P) | | 2014 |
| | T84Hvi | Tablet (P) | | 2014 |
| | T84M | Tablet (P) | | 2014 |
| | T84MRi | Tablet (P) | | 2015 |
| | T84P | Tablet (P) | | 2014 |
| | T974HAi | Tablet (P) | | 2016 |