| Manufacturer  | Model  | Category  | Sub-Category  | Date   |
| | | | | |
 | JC Information Systems Corp. (JC Systems) | 4X-1H36 | Micro | | 1986< |
| | | | | |
 | Joi | 7 Lite | Tablet (P) | | 2015 |
| | | | | |
 | Jolla Oy | 7.85 | Tablet (P) | | 2014 |
| | | | | |
 | Jet Computer | 80 | Micro | | 1983 |
| | | | | |
 | J&M, Inc. | 80C31 SBC | SBC | Microcontroller | 1990s |
| | | | | |
 | Jonos Ltd. | 211 For JONOS I | Terminal | | 1984 |
| | 211-2 For JONOS I | Terminal | | 1984 |
| | | | | |
 | Jade Computer Products | 286-12 | Micro | PC comp. | 1991 |
| | 286-20 | Micro | PC comp. | 1991 |
| | 386-SX-16 | Micro | PC comp. | 1991 |
| | | | | |
 | Jupiter Systems | 410 | Workstation | | 1990 |
| | 412 | Workstation | | 1990 |
| | | | | |
 | John Fluke Mfg Co. Inc. | 1772A | Micro | Industrial | 1983< |
| | 1780A Info Touch | Terminal | | 1982 |
| | | | | |
 | Jewel International | 2700 | Micro (P) | PC comp. | 1990s |
| | 2700C | Micro (P) | PC comp. | 1990s |
| | 2700T | Micro (P) | PC comp. | 1990s |
| | 3000 | Micro (P) | PC comp. | 1990s |
| | | | | |
![?]() | JAI | 3000XCMC | Micro | PC comp. | 2000s |
| | | | | |
 | JF Microsystems | 4188 | SBC | | 1985< |
| | | | | |
 | JC Information Systems Corp. (JC Systems) | 5071H36 | Micro | | 1986< |
| | 5102H85 | Micro | | 1986< |
| | | | | |
 | JF Microsystems | 8730 | SBC | | 1985< |
| | 8759 | SBC | | 1985< |
| | 8800 | SBC | | 1985< |
| | | | | |
 | J&M, Inc. | 64180 SBC | SBC | Microcontroller | 1990s |
| | | | | |
 | JPK Electronique | ? | Terminal | | 1980s |
| | | | | |
 | J.V. Atanasoff/C.Berry | ABC | Special | Early | 1939 |
| | | | | |
 | Jupiter Cantab | ACE 16+ | Home computer | | 1983 |
| | ACE 4000 | Home computer | | 1983 |
| | | | | |
 | JTT Computer S.A. | Adax Alfa 233 MMX | Micro | PC comp. | 1997> |
| | Adax Alfa 450 TRZY | Micro | PC comp. | 2003< |
| | Adax Alfa 466 CL | Micro | PC comp. | 2003< |
| | Adax Alfa 500 CL | Micro | PC comp. | 2003< |
| | Adax Alfa 500 TRZY | Micro | PC comp. | 2003< |
| | Adax Alfa 550 TRZY | Micro | PC comp. | 2003< |
| | Adax Alfa Trzy | Micro | PC comp. | 2003< |
| | ADAX Bravo | Micro | PC comp. | 1990s |
| | Adax Bravo 233 MMX | Micro | PC comp. | 1997> |
| | Adax Bravo 400 CL | Micro | PC comp. | 2003< |
| | Adax Bravo 450 TRZY | Micro | PC comp. | 2003< |
| | Adax Bravo 466 CL | Micro | PC comp. | 2003< |
| | Adax Bravo 500 CL | Micro | PC comp. | 2003< |
| | Adax Bravo 500 TRZY | Micro | PC comp. | 2003< |
| | Adax Bravo 550 TRZY | Micro | PC comp. | 2003< |
| | Adax Bravo Dwa 233 | Micro | PC comp. | 2003< |
| | Adax Bravo Trzy | Micro | PC comp. | 2003< |
| | Adax Delta | Micro | PC comp. | 2003< |
| | Adax Delta 400 TRZY | Micro | PC comp. | 2003< |
| | Adax Delta 450 TRZY | Micro | PC comp. | 2003< |
| | Adax Delta 500 TRZY | Micro | PC comp. | 2003< |
| | Adax Delta 550 TRZY | Micro | PC comp. | 2003< |
| | Adax Delta Dwa 233 | Micro | PC comp. | 2003< |
| | Adax Delta Dwa 300 | Micro | PC comp. | 2003< |
| | Adax Delta Trzy | Micro | PC comp. | 2003< |
| | Adax Gamma | Micro | PC comp. | 2003< |
| | Adax Gamma Siedem | Micro | PC comp. | 2003< |
| | Adax Omega | Micro | PC comp. | 2003< |
| | Adax Omega 500 TRZY | Micro | PC comp. | 2003< |
| | Adax Omega 550 TRZY | Micro | PC comp. | 2003< |
| | Adax Omega Dwa 233 | Micro | PC comp. | 2003< |
| | Adax Omega Dwa 300 | Micro | PC comp. | 2003< |
| | Adax Omega Trzy | Micro | PC comp. | 2003< |
| | Adax SERVER NetOfficePro | Server | | 2003< |
| | | | | |
![?]() | JAI | Adhira | Micro | PC comp. | 2005< |
| | | | | |
 | Juniper Systems, Inc. | Allegro | PDA (P) | Data terminal | 1999< |
| | Allegro CE | PDA (P) | Data terminal | 2003< |
| | Allegro CX | PDA (P) | Data terminal | 2004< |
| | | | | |
 | J.E. Computer Co., Ltd. (JEC) | AMI III | Home computer | Apple 2 clone | 1980s |
| | | | | |
 | Jardine Strauss International, Ltd. | APCOM | Home computer | Apple 2 clone | 1980s |
| | | | | |
![?]() | JAI | AV3000 | Micro | PC comp. | 2000s |
| | | | | |
 | JED Microprocessors Pty Ltd. | AVR200 | SBC | | 2000s |
| | AVR256 | SBC | | 2000s |
| | AVR570 | SBC | | 2000s |
| | AVR573 | SBC | | 2000s |
| | AVR585 | SBC | | 2000s |
| | AVR595 | SBC | | 2000s |
| | | | | |
 | Jinlu Electronics Technology Co., Ltd. | Banana Pi D1 | SBC | | 2014 |
| | Banana Pi G1 | SBC | | 2015 |
| | Banana Pi M1 | SBC | | 2014 |
| | Banana Pi M1+ | SBC | | 2015 |
| | Banana Pi M2 | SBC | | 2015 |
| | Banana Pi M2+ | SBC | | 2016 |
| | Banana Pi M3 | SBC | | 2015 |
| | Banana Pi M64 | SBC | | 2016 |
| | Banana Pi Pro | SBC | | 2016 |
| | Banana Pi R1 | SBC | | 2014 |
| | Banana Pi R2 | SBC | | 2017 |
| | | | | |
 | J.B. Ferguson | BigBoard | SBC | | 1980s |
| | | | | |
 | JSV "Kvant" - Zelenograd | BK | Home computer | ZX clone | 1993 |
| | | | | |
 | J. Kratochvil | BOB-85 | SBC | | 1984 |
| | | | | |
 | JDR Microdevices, Inc. | BOOK-PC | Micro | PC comp. | 2001 |
| | | | | |
 | Jewel International | Brilliant 2700 | Micro (P) | PC comp. | 1990s |
| | Brilliant 2750 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | Japan Digital Laboratory Co., Ltd. (JDL) | Bunsaku 7 | Word processor | | 1980 |
| | Bunsaku 8 | Word processor | | 1980 |
| | | | | |
 | Joytech Computer Co., Ltd. | C Plus II | Home computer | Apple 2 clone | 1984< |
| | | | | |
 | J. Czepa | C-80 | Home computer | Learn | 1986 |
| | | | | |
 | Jonos Ltd. | C2000 | Micro (P) | | 1983< |
| | C2100 | Micro (P) | | 1983 |
| | C2110 (aka Escort) | Micro (P) | | 1982 |
| | C2150 | Micro (P) | | 1984 |
| | C2500 (aka Escort) | Micro (P) | | 1983 |
| | C2550 | Micro (P) | | 1984 |
| | C2600 | Micro (P) | | 1984 |
| | C4100 | Micro (P) | | 1983< |
| | C4300 | Micro (P) | | 1980s |
| | C4500 | Micro (P) | | 1983< |
| | C4550 | Micro (P) | | 1984 |
| | C4700 | Micro (P) | | 1980s |
| | C4750 | Micro (P) | | 1984 |
| | | | | |
 | JDR Microdevices, Inc. | C486-50 | Micro | PC comp. | 1994< |
| | | | | |
 | Jonos Ltd. | C68000 | Micro (P) | | 1983 |
| | | | | |
![?]() | JAI | Capricorn 3200+ | Micro | PC comp. | 2000s |
| | | | | |
 | Juniper Systems, Inc. | CedarCT7 | Tablet (P) | | 2014 |
| | | | | |
 | Jtel Co., Ltd. | CellVic CV-1520 | PDA (P) | | 2002 |
| | | | | |
 | J&L Information Systems, Inc. | ChatOffice | Server | | 1990s |
| | | | | |
 | JC Information Systems Corp. (JC Systems) | Cheetah | Micro | PC comp. | 1998 |
| | | | | |
 | Jewel International | CL51 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | Jugend+Technik | CompJU+TEr | Home computer | | 1987 |
| | | | | |
 | JE-Computer Enders GmbH | Cool Media | Micro | PC comp. | 2004 |
| | | | | |
 | Jonos Ltd. | Courier | Micro (P) | | 1982 |
| | | | | |
![?]() | JAI | CS3000 P4 | Micro | PC comp. | 2000s |
| | CS5900FX 3000+ | Micro | PC comp. | 2000s |
| | | | | |
 | Jewel International | CY23 | Micro (P) | PC comp. | 1990s |
| | CY25 | Micro (P) | PC comp. | 1990s |
| | CY27 | Micro (P) | PC comp. | 1990s |
| | | | | |
![?]() | JAI | Daphne | Micro | PC comp. | 2000s |
| | | | | |
 | Jaba System, Inc. | DeskPro ED180 (2p) | Micro | PC comp. | 2003< |
| | DeskPro S166 | Micro | PC comp. | 2003< |
| | | | | |
 | Jewel International | Diamond 2400 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | J&W | Diamond Plus Series P100 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Plus Series P120 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Plus Series P133 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Plus Series P150 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Plus Series P75 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Plus Series P90 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Series P100 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Series P120 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Series P133 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Series P150 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Series P75 PC 95a | Micro | PC comp. | 1990s |
| | Diamond Series P90 PC 95a | Micro | PC comp. | 1990s |
| | | | | |
 | J. Baker & Associates | Distribution Model 1 (/PDP-11) | Minicomputer | | 1975 |
| | Distribution Model 2 (/PDP-11) | Minicomputer | | 1975 |
| | Distribution Model 3 (/PDP-11) | Minicomputer | | 1977 |
| | | | | |
 | Japan Digital Laboratory Co., Ltd. (JDL) | Document 30 DTP | Word processor | | 1980s |
| | | | | |
 | Japanese Institute of Physical and Chemical Research (RIKEN) | DTK station | Workstation | SPARC clone | 1991 |
| | | | | |
 | JSC "Tensor" - Dubna | Dubna-48 | Home computer | ZX clone | 1987 |
| | | | | |
 | JSV "Kvant" - Zelenograd | DVK-2 | Micro | | 1983 |
| | | | | |
 | J. Rowe | EDUC-8 | Home computer | Learn | 1975 |
| | | | | |
 | Joytech Computer Co., Ltd. | Elite III | Home computer | Apple 2 clone | 1984< |
| | | | | |
![?]() | JAI | EX3000 Cune | Micro | PC comp. | 2000s |
| | | | | |
 | J. Mills | Extended Analog Computer | Analog | | 2000s |
| | | | | |
 | Jumper Computer Technology Co., Ltd. | EZbook A13 | Tablet (P) | | 2010s |
| | EZpad 3s Pro | Tablet (P) | | 2017 |
| | EZpad 4s | Tablet (P) | | 2016 |
| | EZpad 5s | Tablet (P) | | 2015 |
| | EZpad 6 | Tablet (P) | | 2017 |
| | EZpad 6 M6 | Tablet (P) | | 2017 |
| | EZpad Mini 4S | Tablet (P) | | 2015< |
| | EZpad Mini3 | Tablet (P) | | 2017 |
| | | | | |
 | Japanese Institute of Physical and Chemical Research (RIKEN) | FLATS (dev) | | | 1975 |
| | | | | |
 | Jade Computer Products | Fondation System | Micro | S-100 | 1980< |
| | | | | |
 | Johns Hopkins University - Applied Physics Laboratory | FRISC 3 | Special | | 1986 |
| | | | | |
 | Jiangsu Lemote Tech Co., Ltd. | Fuloong 2E | Micro | | 2006 |
| | Fuloong 2F | Micro | | 2008 |
| | Fuloong Mini-PC | Micro | | 2000s |
| | | | | |
 | Jupiter Systems | Fusion 940 | Micro | Industrial | 2000s |
| | Fusion 950 | Micro | Industrial | 2001 |
| | Fusion 960 | Micro | Industrial | 2003 |
| | Fusion 964 | Micro | Industrial | 2000s |
| | Fusion 970 | Micro | Industrial | 2001 |
| | Fusion 980 | Micro | Industrial | 2003 |
| | | | | |
![?]() | JAI | Geraldine A64 3200+ | Micro | PC comp. | 2000s |
| | | | | |
 | Japan Computer Corp. (JCC) | Global PEX | Terminal | X-Terminal | 1992 |
| | Global XC | Terminal | X-Terminal | 1992 |
| | Global XG | Terminal | X-Terminal | 1992 |
| | GPEX 17'' | Terminal | X-Terminal | 1993< |
| | GPEX 20'' | Terminal | X-Terminal | 1993< |
| | GXC | Terminal | X-Terminal | 1993< |
| | GXG 15'' | Terminal | X-Terminal | 1993< |
| | GXG 17'' | Terminal | X-Terminal | 1993< |
| | GXG 20'' | Terminal | X-Terminal | 1993< |
| | GXG 21'' | Terminal | X-Terminal | 1993< |
| | GXM 17'' | Terminal | X-Terminal | 1993< |
| | GXM 19'' | Terminal | X-Terminal | 1993< |
| | GXP 17'' | Terminal | X-Terminal | 1993< |
| | GXP 20'' | Terminal | X-Terminal | 1993< |
| | | | | |
 | JTT Computer S.A. | Hardy 233 MMX | Micro | PC comp. | 1997> |
| | Hardy Dwa 233 | Micro | PC comp. | 2003< |
| | Hardy Dwa 300 | Micro | PC comp. | 2003< |
| | | | | |
 | J. + E. Lukács | Homelab | Home computer | | 1981 |
| | | | | |
 | Jooyon Tech Co., Ltd. | Humanist P1412-4R | Micro | PC comp. | 1990s |
| | Humanist P1456-6W | Micro | PC comp. | 1990s |
| | Humanist P1528-4R | Micro | PC comp. | 1990s |
| | Humanist P1528i-4R | Micro | PC comp. | 1990s |
| | Humanist P1528i-4W | Micro | PC comp. | 1990s |
| | Humanist P1556-6R | Micro | PC comp. | 1990s |
| | Humanist P1556-6W | Micro | PC comp. | 1990s |
| | Humanist P1628i | Micro | PC comp. | 1990s |
| | Humanist P1628i-4R | Micro | PC comp. | 1990s |
| | Humanist P1656-6R | Micro | PC comp. | 1990s |
| | Humanist P1756-4R | Micro | PC comp. | 1990s |
| | Humanist P1756-6W | Micro | PC comp. | 1990s |
| | Humanist P1856-4R | Micro | PC comp. | 1990s |
| | Humanist P1856-6W | Micro | PC comp. | 1990s |
| | Humanist P2012 | Micro | PC comp. | 1990s |
| | Humanist P2056-6R | Micro | PC comp. | 1990s |
| | Humanist P2056i-4R | Micro | PC comp. | 1990s |
| | | | | |
 | Johns Hopkins University - Applied Physics Laboratory | HUT | Special | | 1984 |
| | | | | |
 | Japan Computer Corp. (JCC) | iBox | Terminal | | 1996 |
| | | | | |
 | Japan Victor Company Ltd. (JVC) | InterLink MP-AU1 | Micro (P) | PC comp. | 1999 |
| | InterLink MP-C101 | Micro (P) | PC comp. | 1999 |
| | InterLink MP-C102 | Micro (P) | PC comp. | 1999 |
| | InterLink MP-C303 | Micro (P) | PC comp. | 1999 |
| | InterLink MP-C304 | Micro (P) | PC comp. | 1999 |
| | InterLink MP-XP3210 | | | 2002 |
| | InterLink MP-XP741 | | | 2004 |
| | iO MP-PV131 | PDA (P) | | 2003 |
| | iO MP-PV331 | PDA (P) | | 2003 |
| | | | | |
 | Japan Radio Company (JRC) | IPS-1000 | Micro | | 1982 |
| | | | | |
 | Jadavpur University | ISIJU-I (with ISI) | Special | | 1965 |
| | | | | |
 | Japan Radio Company (JRC) | JAC 110 | Office | | 1967 |
| | JAC 110G | Office | | 1968 |
| | JAC 110K | Office | | 1969 |
| | JAC 120 | Office | | 1970 |
| | JAC 120M/520 | Minicomputer | | 1970 |
| | JAC 322 | Office | | 1967 |
| | JAC 322A | Office | | 1967 |
| | | | | |
 | Jewel International | Jade | Micro (P) | PC comp. | 1990s |
| | Jade 8000 | Micro (P) | PC comp. | 1990s |
| | Jade 8040 | Micro (P) | PC comp. | 1990s |
| | Jade 8060 | Micro (P) | PC comp. | 1990s |
| | Jade 8070 | Micro (P) | PC comp. | 1990s |
| | Jade 8080 | Micro (P) | PC comp. | 1990s |
| | Jade 8100 | Micro (P) | PC comp. | 1990s |
| | Jade 8110 | Micro (P) | PC comp. | 1990s |
| | Jade 8200 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | Jadetec Electronics Ltd. | JadeTec MicroPC4 | Micro | PC comp. | 2000s |
| | | | | |
 | Jacobs Instrument Co. (JAINCOMP) | JAINCOMP-A | Mainframe | Early | 1950 |
| | JAINCOMP-B1 | Mainframe | Early | 1951 |
| | JAINCOMP-C | Mainframe | Early | 1953 |
| | JAINCOMP-D | Mainframe | Early | 1953 |
| | | | | |
 | JC Information Systems Corp. (JC Systems) | JC LIPS | Micro | PC comp. | 1987< |
| | JC LIPS 286 | Micro | PC comp. | 1987< |
| | JC LIPS 386 | Micro | PC comp. | 1987< |
| | JC Lips 386 | Micro | PC comp. | 1988 |
| | | | | |
 | Johnson Controls, Inc. | JC/80 | Minicomputer | | 1972 |
| | | | | |
 | Japan Computer Corp. (JCC) | JCClassic | Workstation | SPARC clone | 1990s |
| | | | | |
 | JC Information Systems Corp. (JC Systems) | JCS 4X-1HXX | Micro | | 1986< |
| | JCS 507 | Micro | | 1986< |
| | JCS 510 | Micro | | 1986< |
| | JCS 810 | Micro | | 1986< |
| | | | | |
 | JDR Microdevices, Inc. | JDR-ABS (7 models) | Micro | PC comp. | 2002 |
| | JDR-BPC (6 models) | Micro | PC comp. | 2002 |
| | JDR-DDS (5 models) | Micro | PC comp. | 2002 |
| | JDR-EBS (13 models) | Micro | PC comp. | 2003 |
| | JDR-HPC (6 models) | Micro | PC comp. | 2000 |
| | JDR-HSPC (9 models) | Micro | PC comp. | 2000 |
| | JDR-MCPC-2.8 | Micro | PC comp. | 2005 |
| | JDR-P566-90 | Micro | PC comp. | 1994 |
| | JDR-P586-60 | Micro | PC comp. | 1994 |
| | JDR-RM1UD667C | Micro | PC comp. | 2001 |
| | JDR-RMPC-2B | Micro | PC comp. | 2000 |
| | JDR-SBS (16 models) | Micro | PC comp. | 2003 |
| | JDR-VPC-2D | Micro | PC comp. | 2000 |
| | JDR-VPC-4A | Micro | PC comp. | 2001 |
| | JDR-VPC-5A | Micro | PC comp. | 2001 |
| | JDR-VPC-7A | Micro | PC comp. | 2006 |
| | | | | |
 | JD.com | JDtab | Tablet (P) | | 2016 |
| | | | | |
 | JEN Elettronica s.r.l. | JEN PC 2 | Home computer | Apple 2 clone | 1983 |
| | | | | |
 | Jenesis Holding Ltd. | JENESIS JT07-81B | Tablet (P) | | 2018 |
| | JENESIS JT10-81B | Tablet (P) | | 2018 |
| | | | | |
![?]() | Jentech | Jentech P-100 PCI | Micro | PC comp. | 1998~ |
| | | | | |
 | JDR Microdevices, Inc. | Jet Pentium | Micro | PC comp. | 1994 |
| | | | | |
 | Jetta International, Inc. | Jetbook 2700 | Micro (P) | PC comp. | 1990s |
| | Jetbook 2850 | Micro (P) | PC comp. | 1990s |
| | Jetbook 3200 | Micro (P) | PC comp. | 1990s |
| | Jetbook 3400 | Micro (P) | PC comp. | 1990s |
| | Jetbook 386sl | Micro (P) | PC comp. | 1990s |
| | JetBook 5026 | Micro (P) | PC comp. | 1990s |
| | JetBook 700 | Micro (P) | PC comp. | 1990s |
| | JetBook 7000 | Micro (P) | PC comp. | 1990s |
| | JetBook 7050 (2 models) | Micro (P) | PC comp. | 1998 |
| | JetBook 7050XL | Micro (P) | PC comp. | 1990s |
| | JetBook 7080 | Micro (P) | PC comp. | 1990s |
| | JetBook 7100 | Micro (P) | PC comp. | 1990s |
| | JetBook 7120 (2 models) | Micro (P) | PC comp. | 1998 |
| | JetBook 7150 | Micro (P) | PC comp. | 1990s |
| | JetBook 7260L | Micro (P) | PC comp. | 1990s |
| | JetBook 7600+ | Micro (P) | PC comp. | 1990s |
| | JetBook 7600+ ii | Micro (P) | PC comp. | 1990s |
| | JetBook 7620 | Micro (P) | PC comp. | 1990s |
| | JetBook 7620N | Micro (P) | PC comp. | 1990s |
| | JetBook 7700 Series | Micro (P) | PC comp. | 1990s |
| | JetBook 7700+ | Micro (P) | PC comp. | 1990s |
| | JetBook 77700T | Micro (P) | PC comp. | 1990s |
| | Jetbook 8400 | Micro (P) | PC comp. | 1990s |
| | JetBook 9050 | Micro (P) | PC comp. | 1990s |
| | JetBook 9100 | Micro (P) | PC comp. | 1990s |
| | Jetbook 9100A | Micro (P) | PC comp. | 1990s |
| | Jetbook 9120 series | Micro (P) | PC comp. | 1990s |
| | JetBook 9500 | Micro (P) | PC comp. | 2000s |
| | | | | |
 | Jade Computer Products | JGZ80 (aka BIG-Z) | SBC | | 1970s |
| | | | | |
 | Jistral (div. Jeumont-Schneider) | Jipac | Home computer | | 1980s |
| | Jipac 4000 | Micro | PC comp. | 1986< |
| | | | | |
![UKR]() | Jeka | JK-700 | Tablet (P) | | 2015 |
| | JK-960 | Tablet (P) | | 2016 |
| | | | | |
 | Janich & Klass Computertechnik GmbH | JK82 System I | Micro | | 1980s |
| | | | | |
 | JKL Computers | JKL 486 | Micro (P) | PC comp. | 1991 |
| | | | | |
 | Joining Instruments & Equipment Co. | JM-3006 | Home computer | Apple 2 clone | 1980s |
| | JM3000 | Home computer | Apple 2 clone | 1983 |
| | | | | |
 | Janper Engenharia Eletrônica Ltda. | JP-01 | Micro | TRS-80 clone | 1982 |
| | | | | |
 | JR Conseil (JRC) | JRC GX 386-16 | Micro | PC comp. | 1990 |
| | JRC Turbo 286-12 | Micro | PC comp. | 1990 |
| | | | | |
 | Juniper Systems, Inc. | JS 600 | PDA (P) | Data terminal | 1998< |
| | | | | |
 | Japan Computer Corp. (JCC) | JS10/M61 | Workstation | SPARC clone | 1990s |
| | JS20/M61 | Workstation | SPARC clone | 1990s |
| | | | | |
 | Joy Systems, Inc. | JS286C | Micro | PC comp. | 1987 |
| | JS286E | Micro | PC comp. | 1987 |
| | JS286M | Micro | PC comp. | 1987 |
| | | | | |
 | Jeran Technology Ltd. | JT54-133 | Micro | PC comp. | 2003< |
| | JT54-166 | Micro | PC comp. | 2003< |
| | JT54V-200 | Micro | PC comp. | 2003< |
| | JTPRO-180A | Micro | PC comp. | 2003< |
| | | | | |
 | Japan Computer Corp. (JCC) | JU10 | Workstation | SPARC clone | 1990s |
| | JU30 | Workstation | SPARC clone | 1990s |
| | JU60 | Workstation | SPARC clone | 1990s |
| | | | | |
 | Jizhao Information Technology Co., Ltd. | JZ-10100 | Tablet (P) | | 2014 |
| | JZ-10141 | Tablet (P) | | 2014 |
| | JZ-701 | Tablet (P) | | 2014 |
| | JZ-704A | Tablet (P) | | 2014 |
| | JZ-704AR | Tablet (P) | | 2013 |
| | JZ-741 | Tablet (P) | | 2014 |
| | JZ-742A | Tablet (P) | | 2014 |
| | JZ-842B | Tablet (P) | | 2014 |
| | JZ-K02 | Tablet (P) | | 2013 |
| | JZ-K03 | Tablet (P) | | 2013 |
| | JZ-V10L | Tablet (P) | | 2015 |
| | JZ-V742 | Tablet (P) | | 2015 |
| | JZ-V7L | Tablet (P) | | 2014 |
| | JZ-V89L | Tablet (P) | | 2014 |
| | JZ-V8L | Tablet (P) | | 2014 |
| | | | | |
 | J. Karpinski | K-202 | Minicomputer | | 1971 |
| | | | | |
 | Japanese Institute of Physical and Chemical Research (RIKEN) | KC 486/50 | Micro | PC comp. | 1991 |
| | | | | |
 | Joi | KinderTab | Tablet (P) | | 2014 |
| | | | | |
 | J. Hoffman | Kino 74 | Home computer | | 2000s |
| | | | | |
 | J. R. Coffman | KISS-68030 | SBC | | 2000s |
| | | | | |
 | Japanese Institute of Physical and Chemical Research (RIKEN) | Kobilstation 2 | Workstation | SPARC clone | 1992 |
| | | | | |
 | JSV "Kvant" - Zelenograd | Kvant 1 | Home computer | | 1990 |
| | Kvant-BK MC 0530 | Home computer | ZX clone | 1991 |
| | | | | |
 | Jetta International, Inc. | L8400 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | JEN Elettronica s.r.l. | Lemon II (aka JEN PC 1)
| Home computer | Apple 2 clone | 1983 |
| | Lemon II Biprocessor 64 (aka Jen PC 3)
| Home computer | Apple 2 clone | 1984 |
| | Lemon II E | Home computer | Apple 2 clone | 1983 |
| | Lemon Intelligent PC-401 Turbo | Micro | PC comp. | 1983 |
| | Lemon Intelligent PC-EXT | Home computer | Apple 2 clone | 1984 |
| | | | | |
 | J. Lyons & Co., Ltd. | LEO | Mainframe | Early | 1951 |
| | | | | |
 | Jistral (div. Jeumont-Schneider) | Lic. Micral | Micro | | 1980s |
| | | | | |
 | JC Information Systems Corp. (JC Systems) | Lion | Micro | PC comp. | 1998 |
| | Lion II | Micro | PC comp. | 1998 |
| | | | | |
 | Joytech Computer Co., Ltd. | Lithius 386 | Micro | PC comp. | 1987 |
| | Lithius AT | Micro | PC comp. | 1986 |
| | Lithius PC | Micro | PC comp. | 1986 |
| | | | | |
 | Japan Digital Laboratory Co., Ltd. (JDL) | lognote | Micro (P) | PC comp. | 2003< |
| | | | | |
 | Jiangsu Lemote Tech Co., Ltd. | Lynloong | Micro | | 2000s |
| | | | | |
 | Jewel International | M30EI0 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | Jade Computer Products | Macro Micro | Micro | | 1980< |
| | | | | |
 | J. Titus | Mark-8 | Home computer | Kit | 1974 |
| | | | | |
 | Janz Computer AG | MAXI 32000 | SBC | | 1985< |
| | | | | |
 | Japanese Institute of Physical and Chemical Research (RIKEN) | MDGRAPE-3 | Supercomputer | | 2006 |
| | MDGRAPE-4 | Supercomputer | | 2017 |
| | | | | |
 | J&M Martela Oy | Medium 466+ | Micro | PC comp. | 1999 |
| | | | | |
 | J. Newman | Megaprocessor | Special | | 2000s |
| | | | | |
 | Juniper Systems, Inc. | Mesa 2 | Tablet (P) | | 2016 |
| | | | | |
 | Japan Victor Company Ltd. (JVC) | Mini Note MP-XP7210 | Micro (P) | PC comp. | 2000s |
| | Mini Note MP-XP7230 | Micro (P) | PC comp. | 2000s |
| | Mini Note MP-XP731 | Micro (P) | PC comp. | 2000s |
| | Mini Note MP-XV841 | Micro (P) | PC comp. | 2000s |
| | | | | |
 | Jacobi Systems, Inc. | MINITS I (/Interdata) | Minicomputer | | 1960s |
| | MINITS II | Minicomputer | | 1969 |
| | | | | |
![?]() | JAI | Monarch 3000 - 3200+ | Micro | PC comp. | 2000s |
| | Monarch A64 | Micro | PC comp. | 2000s |
| | Monarch P4-3.4 | Micro | PC comp. | 2000s |
| | | | | |
 | Japan Victor Company Ltd. (JVC) | MP-XP3210 | Micro (P) | PC comp. | 2002 |
| | MP-XP7210 | Micro (P) | PC comp. | 2002 |
| | MP-XV841 | Micro (P) | PC comp. | 2007 |
| | | | | |
 | JEN Elettronica s.r.l. | MR-1330 | Micro | PC comp. | 2003< |
| | MRX-200 | Micro | PC comp. | 2003< |
| | MRX-2256 | Micro | PC comp. | 2003< |
| | | | | |
 | JE-Computer Enders GmbH | Multimedia Athlon 650 | Micro | PC comp. | 1995~ |
| | Multimedia K6-166 | Micro | PC comp. | 1996~ |
| | Multimedia P133 | Micro | PC comp. | 2000~ |
| | Multimedia P166 MMX | Micro | PC comp. | 1997~ |
| | Multimedia PII 300 MMX | Micro | PC comp. | 1996~ |
| | Multimedia PII-350 | Micro | PC comp. | 1997~ |
| | | | | |
 | Jupiter Systems | MX600 | Terminal | X-Terminal | 1993< |
| | | | | |
 | Jiangsu Lemote Tech Co., Ltd. | Myloong | Micro | | 2000s |
| | | | | |
 | Jewel International | N222S | Micro (P) | PC comp. | 1990s |
| | N30N3 | Micro (P) | PC comp. | 1990s |
| | N340S8 | Micro (P) | PC comp. | 1990s |
| | N341C2 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | Jiehe Technology Development Co. Ltd. (Giada) | NB | | | 2000s |
| | | | | |
![?]() | Jool | Netserv Kwartz | Server | | 2000s |
| | | | | |
 | Japan Computer Corp. (JCC) | NJC-C1421 | Terminal | | 1984< |
| | NJC-C1431 | Terminal | | 1984< |
| | NJC-C1441 | Terminal | | 1984< |
| | NJC-C2022 | Terminal | | 1984< |
| | NJC-M1000 | Terminal | | 1983 |
| | NJC-M1401 | Terminal | | 1984< |
| | NJC-M1414 | Terminal | | 1984< |
| | | | | |
 | Jiangsu Radio Factory | NJS-1 (/North Star) | Micro | | 1980s |
| | | | | |
 | John F. Rose Computer Services Pty Ltd. | OPAL 1000 | Micro | | 1980< |
| | OPAL 1004 | Micro | | 1980< |
| | | | | |
 | J. Domerecki/M. Krokoszynski/A. Sachanbinski | OPOL-1 | Home computer | | 1986~ |
| | | | | |
 | J.R. Jones | OTHER-1 | Special | | 1976 |
| | | | | |
 | JD Electronic s.r.l. | P.C. 1000 | Home computer | Apple 2 clone | 1984 |
| | | | | |
 | JinXing Digital Co., Ltd. (JXD) | P1000 | Tablet (P) | | 2012 |
| | P1000m | Tablet (P) | | 2013 |
| | P1000s | Tablet (P) | | 2013 |
| | P101 | Tablet (P) | | 2013 |
| | P200m | Tablet (P) | | 2012 |
| | P200s | Tablet (P) | | 2013 |
| | P300 | Tablet (P) | | 2012 |
| | P3000P | Tablet (P) | | 2013 |
| | P3000s | Tablet (P) | | 2013 |
| | P700 | Tablet (P) | | 2012 |
| | P861 | Tablet (P) | | 2013 |
| | P863 | Tablet (P) | | 2014 |
| | P864H | Tablet (P) | | 2014 |
| | P867 | Tablet (P) | | 2013 |
| | P868 | Tablet (P) | | 2013 |
| | P877 | Tablet (P) | | 2013 |
| | P9100 | Tablet (P) | | 2013 |
| | | | | |
![?]() | JAI | PC 845-66-32VL | Micro | PC comp. | 1994< |
| | PC 852/Pentium-66/64 BR | Micro | PC comp. | 1994< |
| | PC Plus Kob 6430 | Micro | PC comp. | 2000s |
| | PCW64B - 3000 | Micro | PC comp. | 2000s |
| | Phoebe | Micro | PC comp. | 2005< |
| | | | | |
 | J.F.P. Philipse | PHUNSY | Micro | | 1980 |
| | | | | |
 | Jade Computer Products | Piggy System | Micro | S-100 | 1980< |
| | | | | |
 | JDR Microdevices, Inc. | PKG-433A | Micro | PC comp. | 2001 |
| | PKG-433C | Micro | PC comp. | 2001 |
| | PKG-433M | Micro | PC comp. | 2001 |
| | PKG-AMDC | Micro | PC comp. | 2008 |
| | PKG-CELE | Micro | PC comp. | 2008 |
| | PKG-CORE2-2GB | Micro | PC comp. | 2008 |
| | PKG-INDC | Micro | PC comp. | 2008 |
| | PKG-SLIM | Micro | PC comp. | 2008 |
| | | | | |
![?]() | JRE Consulting | PL100 | Micro | PC comp. | 2003< |
| | | | | |
 | Jožef Stefan Institute | PMP-11 | Micro | PDP-11 comp. | 1985< |
| | | | | |
![?]() | JAI | Poseidon | Micro | PC comp. | 2005< |
| | PP-3200BU | Micro | PC comp. | 2000s |
| | | | | |
 | JEN Elettronica s.r.l. | PR 466E/256 | Micro | PC comp. | 1990s |
| | | | | |
 | Juniper Systems, Inc. | Pro2000 | PDA (P) | Data terminal | 1998< |
| | Pro4000 | PDA (P) | Data terminal | 1999< |
| | | | | |
 | JSC "Qvartz" - Kaliningrad | Quartz | Home computer | ZX clone | 1990s |
| | | | | |
![?]() | JV | R-STYLE MARSHALL-PCI/ISA-PENTIUM/90 | Micro | PC comp. | 1994< |
| | | | | |
 | J. Glagla/D. Feiler | Ravensburger Selbstbaucomputer V0.9 | Home computer | Kit | 1984 |
| | | | | |
 | J. Stanley | RC Two | Special | | 2000s |
| | | | | |
 | J.B. Rea Co. | Readix | Mainframe | Early | 1956 |
| | | | | |
 | Jide Technology Co., Ltd. | Remix Mini | Micro | | 2016 |
| | | | | |
 | JinXing Digital Co., Ltd. (JXD) | S11 | Tablet (P) | | 2012 |
| | S18 | Tablet (P) | | 2012 |
| | S5110 | Tablet (P) | | 2012 |
| | S5300 | Tablet (P) | | 2012 |
| | S5800 | Tablet (P) | | 2014 |
| | S601 | Tablet (P) | | 2011 |
| | S602 | Tablet (P) | | 2012 |
| | S603 | Tablet (P) | | 2011 |
| | S6600 | Tablet (P) | | 2012 |
| | S6600b | Tablet (P) | | 2013 |
| | S661 | Tablet (P) | | 2013 |
| | S662 | Tablet (P) | | 2014 |
| | S7100 | Tablet (P) | | 2011 |
| | S7300 | Tablet (P) | | 2012 |
| | S7600 | Tablet (P) | | 2011 |
| | S7700 | Tablet (P) | | 2012 |
| | S7800B | Tablet (P) | | 2014 |
| | S80 | Tablet (P) | | 2012 |
| | S8000 | Tablet (P) | | 2012 |
| | S9000 | Tablet (P) | | 2011 |
| | S908 | Tablet (P) | | 2012 |
| | S9100 | Tablet (P) | | 2012 |
| | | | | |
 | Jewel International | Saffier 1400 | Micro (P) | PC comp. | 1990s |
| | Saffier 1500 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | J.T. Hyan | Savia 84 | Home computer | Learn | 1984 |
| | | | | |
 | JDR Microdevices, Inc. | SBB-PC | Micro | PC comp. | 2000 |
| | | | | |
 | Jade Computer Products | SBC 200 | SBC | | 1983 |
| | | | | |
 | J. R. Coffman | SBC-188 | SBC | | 2000s |
| | | | | |
 | J. Perusanec | SBC6510 | SBC | | 2009 |
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![?]() | JAI | Serena+ | Micro | PC comp. | 2005< |
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 | JinXing Digital Co., Ltd. (JXD) | Singulartity S192 | Tablet (P) | | 2015 |
| | | | | |
 | John Bell Engineering, Inc. | Slim 81-260 | SBC | | 1982 |
| | | | | |
 | Japanese Institute of Physical and Chemical Research (RIKEN) | Sparc 2 | Workstation | SPARC clone | 1992 |
| | | | | |
 | Jarogate Ltd. | Spirit | Workstation | | 1989 |
| | | | | |
 | Jiama (Chia-ma) | SPS-109 | Home computer | Apple 2 clone | 1980s |
| | | | | |
 | JEN Elettronica s.r.l. | ST 386SX/33/32 | Micro | PC comp. | 1990s |
| | ST 486/66 | Micro | PC comp. | 1990s |
| | | | | |
 | JTS Computer Systems Ltd. | Stylus | Word processor | | 1981< |
| | | | | |
 | Jadetec Electronics Ltd. | Sumicom Max | Micro | PC comp. | 2000s |
| | Sumicom S600 | Micro | PC comp. | 2000s |
| | | | | |
 | Jade Computer Products | Super 386-20 | Micro | PC comp. | 1991 |
| | Super 386-20 1/ 40 | Micro | PC comp. | 1991 |
| | Super 386-20 1/ 40 | Micro | PC comp. | 1991 |
| | Super 386-25 | Micro | PC comp. | 1991 |
| | Super 386-25 1/ 40 | Micro | PC comp. | 1991 |
| | | | | |
 | Japan Computer Corp. (JCC) | Super FX | Terminal | X-Terminal | 1991 |
| | Super XL | Terminal | X-Terminal | 1991 |
| | Super XR | Terminal | X-Terminal | 1991 |
| | | | | |
 | J.T. Microcomputers Pty Ltd. | System I | Micro | | 1980< |
| | System II | Micro | | 1980< |
| | | | | |
 | Jade Computer Products | System III | Micro | | 1979 |
| | | | | |
 | J.T. Microcomputers Pty Ltd. | System IIP | Micro | | 1980< |
| | System IP | Micro | | 1980< |
| | | | | |
 | JEN Elettronica s.r.l. | Systema 286M | Micro | PC comp. | 1990 |
| | Systema 386Bsx | Micro | PC comp. | 1990 |
| | Systema 88M | Micro | PC comp. | 1990 |
| | | | | |
 | JDR Microdevices, Inc. | T586-133 | Micro | PC comp. | 2003< |
| | | | | |
 | Jolla Oy | Tablet | Tablet (P) | | 2015 |
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![?]() | JAI | Tacita | Micro | PC comp. | 2005< |
| | | | | |
 | JZD Agrokombinát Slušovice | TNS/AT | Micro | PC comp. | 1987< |
| | TNS/XT | Micro | PC comp. | 1987< |
| | | | | |
 | Jewel International | Topaz 9600 | Micro (P) | PC comp. | 1990s |
| | Topaz 9700 | Micro (P) | PC comp. | 1990s |
| | | | | |
 | Jingye Co. | TP-801 | Micro | | 1982 |
| | | | | |
 | JEN Elettronica s.r.l. | Twix 25/128 | Micro | PC comp. | 1989 |
| | Twix 486E | Micro | PC comp. | 1990 |
| | | | | |
 | J&M Martela Oy | Ultra | Micro | PC comp. | 2000 |
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 | Jide Technology Co., Ltd. | Ultra Remix 11.6 | Tablet (P) | | 2015 |
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 | JDR Microdevices, Inc. | V486-33 | Micro | PC comp. | 1994< |
| | V486-66 | Micro | PC comp. | 1994< |
| | V486SX-33 | Micro | PC comp. | 1994< |
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 | JinXing Digital Co., Ltd. (JXD) | V5200 | Tablet (P) | | 2011 |
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 | Jizhao Information Technology Co., Ltd. | V842 | Tablet (P) | | 2014 |
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 | Japan Victor Company Ltd. (JVC) | Victor VG-470 | Terminal | | 1980< |
| | | | | |
 | JPB Services | Viking | Micro | | 1984 |
| | | | | |
![?]() | JAI | Virgo 1900WPC | Micro | PC comp. | 2000s |
| | Virgo 2000XP | Micro | PC comp. | 2000s |
| | Virgo 2100+ - 2400+ | Micro | PC comp. | 2000s |
| | Virgo 3000+ | Micro | PC comp. | 2000s |
| | Virgo P4 306 | Micro | PC comp. | 2000s |
| | | | | |
 | Jupiter Systems | Vizion Series | Micro | Industrial | 2000s |
| | | | | |
 | Japan Victor Company Ltd. (JVC) | VPC | Micro | PC comp. | 1986 |
| | | | | |
 | jTab | W702 | Tablet (P) | | 2011 |
| | W702 II | Tablet (P) | | 2011 |
| | W710 | Tablet (P) | | 2012 |
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 | Junior Technologia da Informacao Ltda. | WJR 0001 | Micro | PC comp. | 2007< |
| | WJR 0002 | Micro | PC comp. | 2007< |
| | | | | |
![?]() | JAI | XC6600 | Micro | PC comp. | 2000s |
| | | | | |
 | Japan Computer Corp. (JCC) | XFACE | Terminal | X-Terminal | 1993< |
| | XFACEC | Terminal | X-Terminal | 1993< |
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 | Jentra Computers Corp. | XIS Pro200 | Micro | PC comp. | 2003< |
| | | | | |
 | Jade Computer Products | XPC | Micro | PC comp. | 1986< |
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 | Japan Computer Corp. (JCC) | XQC | Terminal | X-Terminal | 1993< |
| | XQM | Terminal | X-Terminal | 1993< |
| | | | | |
 | Jiangsu Lemote Tech Co., Ltd. | Yeeloong 8089B | Micro | | 2006 |
| | Yeeloong 8089D | Micro | | 2006 |
| | Yeeloong 8101B | Micro | | 2006 |
| | | | | |
 | Jolla Oy | Youyota | Tablet (P) | | 2017 |
| | | | | |
 | J. Adamski/A.Owen | ZX Spectrum SE (aka Chloe) | SBC | ZX clone | 1999 |