|  | 
| Computer Manufacturers Database 
 | 
| Logo | Manufacturer
    | Models | Origin | Est. | Ended | Production | Type | Info 1 | Info 2 | 
| H | |||||||||
| H-Printer Technology SA  | PC Comp. | SWI | 1989 | 1992 | 90's | PC | - | - | |
|  | H. Barousse  | TAVBAR | FRA | - |  | 80's | PC | - | - | 
|  | H. Berthold AG | Sparc clone, (+16) | GER | 1858 | 1993 | 70's - 90's | PC |  | - | 
|  | H. Chamberlain | HAL-4096 | USA | - | () | 70's | SC | - |  | 
|  | H. Colford | P.I.M.P.S. | USA | - |  | 70's | PC | - |  | 
| H. Essers Electronic BV | PC comp. | HOL | - | () | 90's | PC | - |  | |
|  | H. Franklin | CAN | - |  | 70's | PC | - |  | |
|  | H. Hoelzer | 1 models | GER | - |  | 40's | SC |  | - | 
|  | H. Hoyer | Jugend+Technik-Computer | GER | - | () | 80's | PC | - |  | 
|  | H. Seifers | SM 1 | GER | - | () | 50's | SC | - | - | 
|  | H. Stegeman | HJS22 | HOL | - | () | 70's | PC | - |  | 
|  | Habey USA (div. NORCO)  | USA | 1991 | 2018 | 00's - 10's | PC | - |  | |
|  | Hacker DatenTechnik | GER | - | act. | 00's - 10's | PC | - |  | |
|  | Haengheang Electric Industry Co., Ltd. | Cyborg, (+2) | KOR | - |  | 80's | PC | - |  | 
| Hagan Controls Corp. | USA | 1918 |  | 60's | SC | - |  | ||
| Hagen Systems, Inc. | 1 models | USA | 1965 |  | 70's | PC | - |  | |
|  | Hagile Tech Co., Ltd.  | CHN | - | act. | 00's - 10's | PC | - |  | |
|  | Hai Guan Technology Co., Ltd. (blue sky)  | PC comp. | HON | 2014 | act. | 10's | PC | - |  | 
|  | Haier Group | 30 models | CHN | 1984 | act. | 10's | PC |  | - | 
| Haier Pakistan  | PC comp. | PAK | - | act. | 10's | PC | - |  | |
|  | Haiking Industries Co., Ltd.  | PC comp. | CHN | 1995 | act. | 00's - 10's | PC | - |  | 
| Hailan Electronic Co., Ltd. | PC comp. | CHN | 2012 | act. | 10's | PC | - |  | |
|  | Hajaan (div. Tecdale) | PC comp. | CAN | - | act. | 20's | PC | - |  | 
| Hakka Systems | ? | - | () | 90's | PC | - |  | ||
|  | HAL Communications Corp. | MCEM-8080, (+6) | USA | 1976 |  | 70's | PC, TER | - |  | 
| HAL Computer Company | PC comp. | CAN | - | () | 80's | PC | - | - | |
|  | HAL Computer Systems, Inc. | SPARC clone, (+2) | USA | 1990 | 1996 | 90's | PC |  | - | 
|  | HAL3000 (div. 100Mega Distribution)  | PC comp. | CZE | - | act. | 00's - 10's | PC | - | - | 
|  | Halberthal Electronique SA | Logitel | FRA | - | act. | 80's | TER | - |  | 
|  | Halikan (-> Chaplet Systems) | 4 models | TWN | - | () | 90's | PC | - | - | 
| Hall-Scott, Inc. | 1 models | USA | 1910 | 1960 | 50's | SC | - | - | |
|  | Haller, Raymond and Brown, Inc. (-> HRB Systems)  | USA | 1947 |  | 50's | SC | - | - | |
|  | Halley | PC comp., (+3) | ? | - | () | 80's | PC | - |  | 
|  | Halskar Systems | PC comp., (+11) | USA | - |  | 80's - 90's | PC | - |  | 
| Hamburger Computerversand (HCV) | 1 models | GER | - | () | 80's | PC | - | - | |
| Hamilton Communications, Inc. | 1 models | USA | - | () | 70's | PC | - |  | |
| Hamilton GmbH | SPARC clone, (+8) | GER | - |  | 90's | PC | - |  | |
|  | Hamilton Standard (div. United Aircraft)  | USA | 1929 | 1999 | 70's | SC | - |  | |
| Hampshire Engineering Co., Inc. | CCC, TRTDS, (+2) | USA | - |  | 50's | SC | - |  | |
|  | Han Shing Technology | PC comp. | TWN | - |  | 00's | PC | - | - | 
|  | Hancke & Peter GmbH | PC comp., (+11) | GER | 1984 | act. | 90's | PC | - | - | 
|  | Hand Held Products, Inc. (HHC)  | Dolphin, (+2) | USA | 1981 | 2007 | 80's - 90's | PC |  |  | 
|  | HandEra (TRG) | 2 models | USA | 1992 | act. | 00's | PC |  |  | 
|  | Handheld Group AB | Nautiz, Algiz, (+9) | SWE | 1997 | act. | 00's - 10's | PC |  |  | 
| Handhok | PC comp., (+2) | ? | - | () | 90's | PC | - | - | |
|  | Handok Co. | PC comp. | KOR | - | act. | 80's - 90's | TER, PC | - |  | 
|  | Handspring  | Visor, (+11) | USA | 1998 | 2003 | 00's | PC |  | - | 
|  | Handtop Computers International | HANDTOP | FRA | - | () | 90's | PC | - |  | 
|  | Handwell | PC comp. | USA | - | () | 80's | PC | - |  | 
|  | Hanguk Sangyeok Co., Ltd. (KIPS Computer)  | Spotlight | KOR | - |  | 80's | PC | - |  | 
|  | Hanimex Pty Ltd.  | Pencil II | AUS | 1947 | 2004 | 80's | PC | - |  | 
|  | Hannspree, Inc. (div. Hannstar) | PC comp., (+20) | USA | - | act. | 00's | PC | - |  | 
|  | Hannstar Display Corp. | PC comp. | TWN | 1998 | act. | 00's - 20's | PC |  |  | 
|  | Hansa Electronic | HANSEA | GER | - |  | 80's | PC | - |  | 
|  | Hanseatische Apparatebaugesellschaft ehemals Neufeldt und Kuhnke GmbH (Hagenuk) | 1 models | GER | 1936 |  | 80's | TER | - |  | 
| Hansen Information Technologies | PC comp. | USA | - | () | 90's | PC | - |  | |
|  | Hantarex S.p.A. | ITA | 1945 | 2012 | 80's | PC |  | - | |
|  | Hanyang University | 3 models | KOR | 1939 | act. | 60's | SC | - |  | 
| Hanzsung Technology Co., Ltd.  | CHN | 2003 | act. | 00's - 10's | PC | - |  | ||
|  | HaoBang Technology Co., Ltd.  | HON | 2015 | act. | 10's | PC | - |  | |
|  | HAOYU Electronics | MarsBoard, (+3) | CHN | - | act. | 00's | PC | - |  | 
| Happy Home Computer Co. | Multi-System | TWN | - | () | 80's | PC | - |  | |
|  | Hard Wave | PC comp. | FRA | - |  | 90's | PC | - |  | 
|  | Hardcore Computer  | USA | 2006 | act. | 00's | PC |  | - | |
|  | Hardkernel Co., Ltd. | Odroid, (+9) | KOR | - | act. | 00's - 20's | PC |  |  | 
| Hardsoftware Ltda. | PC comp. | BRA | - | () | 80's | PC | - |  | |
|  | Hardware | PC comp. | BRA | - | () | 80's | PC | - |  | 
|  | Hardware Business Systems s.r.l. (HBS)  | PC comp., (+2) | ITA | - |  | 90's | PC | - |  | 
| Hardware Canada Computing, Inc.  | NetWinder | CAN | 1987 | 1999 | 00's | PC | - | - | |
|  | Hardware Research | Mac clone, (+9) | USA | - | act. | 90's - 00's | PC | - |  | 
| Hardware That Fits | PC comp. | USA | - | () | 90's | PC | - |  | |
| Hardy Computer Corp. | 1 models | USA | 1979 | () | 80's | PC | - |  | |
| Harmony Computer | PC comp. | USA | - | () | 80's | PC | - | - | |
| Harpo | PC comp., (+2) | ? | - |  | 90's | PC | - | - | |
| Harris | PC comp., (+3) | ? | - | () | 90's | PC | - | - | |
|  | Harris Adacom Network Services, Inc. | WS-471, (+2) | USA | - | () | 90's | TER | - |  | 
|  | Harris Corp.  | Slash, (+129) | USA | 1967 | act. | 70's - 80's | MC, PC , TER |  |  | 
|  | Hart (-> Joo Jeong-won) | PC comp. | KOR | - |  | 80's | PC | - |  | 
| Hartley Computer Applications Pty Ltd. | 3900 Series, (+5) | AUS | 1974 | 1982 | 80's | PC, TER | - |  | |
| Hartmann & Braun | 1 models | GER | - |  | 80's | PC | - |  | |
| Hartumut Pagel Microcomputertechnik | 1 models | GER | - | () | 70's | PC | - |  | |
|  | Harvard University | Mark I, (+5) | USA | 1944 | act. | 40's | SC |  | - | 
|  | Hasee Computer Company Ltd.  | 3 models | CHN | 1995 |  | 90's - 00's | PC |  |  | 
|  | Hasler AG  | 4 models | SWI | 1852 | 1987 | 70's | MC, PC, TER | - |  | 
| Hassler-Bürotechnik GmbH | SPARC clone | GER | - | () | 90's | PC | - | - | |
| Hast Computer Systems, Ltd. | PC comp., (+3) | USA | - | () | 90's | PC | - |  | |
| Hastech, Inc. | 1 models | USA | 1979 |  | 80's | MC | - |  | |
|  | Hathaway Instruments, Inc. (div. Hamilton Watches)  | 1 models | USA | 1939 | 2002 | 50's | SC | - | - | 
|  | Hatteland Display A/S  | NOR | 1989 | act. | 00's - 20's | PC | - |  | |
|  | Hauppauge Computer Works | CADStation, (+5) | USA | 1982 | act. | 90's | PC | - |  | 
|  | HAVOCpc | PC comp. | USA | - |  | 00's | PC | - |  | 
|  | Hawk Computers | 2 models | UK | - | () | 80's | PC | - |  | 
|  | Hawker Siddeley Dynamics Ltd. | DCC-2 | UK | 1934 | 1992 | 60's | MC | - | - | 
| Hawthorne Technology | TinyGiant HT68k | USA | - | () | 80's | PC |  |  | |
|  | Haxun Technology Co., Ltd. (PesComm) | CHN | - | act. | 00's - 20's | PC | - |  | |
|  | Haywood Electronics Associates Ltd. | 9000, (+3) | UK | - | () | 80's | PC | - |  | 
|  | Hazeltine Corp.  | SPEDAC, APEDAC, (+25) | USA | 1924 | 1986 | 60's - 70's | SC, TER |  |  | 
|  | HBN Electronic SA | Guépard | FRA | - |  | 80's | PC | - |  | 
|  | HCE Engineering s.r.l. | Cosino | ITA | - |  | 00's - 10's | PC | - |  | 
| HCL-HP Ltd.  | IND | 1991 |  | 90's | PC | - | - | ||
|  | HCS Computers | PC comp. | UK | 2000 |  | 00's | PC | - |  | 
| HCS GmbH | KS-10 | GER | - |  | 70's | PC | - |  | |
|  | HCWY Technology Co., Ltd.  | CHN | 2011 | act. | 10's | PC | - |  | |
| HD Computers | PC comp. | USA | - | () | 90's | PC | - |  | |
|  | HD MicroSystèmes (HDM) | PC comp., (+12) | FRA | 1982 | () | 90's | PC | - | - | 
|  | HDL Focus, Inc. | USA | 1996 |  | 00's - 10's | PC | - |  | |
|  | HDR Systems, Inc.  | Noah | USA | 1972 |  | 80's | PC | - |  | 
| HDS Networks Systems, Inc. | RISC, (+2) | USA | - | () | 90's | PC | - |  | |
|  | HeadStart Technologies Co.  | PC comp., (+9) | USA | 1989 |  | 80's - 90's | PC | - |  | 
|  | Heath Co.  | H8, H89 , (+46) | USA | 1926 | act. | 60's - 80's | SC, PC, TER |  |  | 
|  | Heath/Zenith (-> Zenith)  | USA | 1979 |  | 70's | PC |  |  | |
| Heathkit (-> Heath Co.) | USA | - |  | 60's | PC, TER | - |  | ||
| Heathkit/Schlumberger | USA | 1962 | 1979 | 70's - 90's | TER, PC |  | - | ||
|  | Hebrew University of Jerusalem | Makbilan, (+3) | ISR | 1918 | act. | 90's | SC | - | - | 
| Hecht-Nielsen Neurocomputer Corp. | ANZA | USA | 1986 |  | 80's | PC | - |  | |
|  | Heckler &Koch Automation GmbH (HK) | Mikroterminal, (+3) | GER | - |  | 80's | TER | - |  | 
|  | Hedonic Computer Co., Ltd. | TWN | - | () | 80's | PC | - |  | |
|  | Hedy Computer Co., Ltd. | PC comp. | TWN | - | act. | 00's - 10's | PC | - |  | 
|  | HeidePC (Dream System) | PC comp. | GER | - |  | 00's | PC | - |  | 
| Heinz Electronic | GER | - |  | 80's | PC | - |  | ||
|  | Heisei Technology Co., Ltd.  | TWN | 1989 |  | 90's - 10's | PC | - |  | |
| Helionetics, Inc.  | SPARC clone | USA | - |  | 90's | PC | - | - | |
| Helios Computer  | PC comp., (+4) | USA | - |  | 90's | PC | - |  | |
| Helix  | USA | - | () | 70's | PC | - | - | ||
|  | Hell (by Siemens) | SICOMP M56 | GER | - | 1990 | 80's | PC | - |  | 
|  | Hellenic Aerospace Industry (EAB) | Pythagoras | GRE | 1975 | () | 70's | SC | - |  | 
|  | Helor Cloud Computer Co., Ltd.  | CHN | - | act. | 00's - 10's | PC | - |  | |
|  | Helsinki University of Technology (TKK) | ESKO, (+2) | FIN | 1908 | act. | 50's | SC |  | - | 
|  | Henan Kaifeng Computing Institute | 1 models | CHN | - | () | 80's | PC | - |  | 
| Hendrix Electronics, Inc. | 5100, (+6) | USA | - | () | 70's | TER | - |  | |
|  | Hengesystems Ltda. | PC comp. | BRA | - | () | 80's | PC | - |  | 
|  | Hengstar Technology Co., Ltd.  | CHN | 2004 | act. | 00's - 10's | PC | - |  | |
|  | Hengstar Technology Co., Ltd.  | CHN | 2014 | act. | 10's - 20's | PC | - |  | |
|  | Heptagon Systems | 7 models | AUS | 2015 | act. | 10's | PC | - |  | 
| Hera | 1 models | GER | - | () | 80's | TER | - |  | |
|  | Hercules (div. Guillemot)  | PC comp. | FRA | 1984 | act. | 00's | PC |  |  | 
|  | Hercules (div. Neckermann) | PC comp. | GER | - |  | 80's | PC | - | - | 
| Herex Computer Technology, Inc. | USA | - | () | 90's | PC | - |  | ||
| Heritage Systems Corp. | 1 models | USA | - |  | 80's | PC | - |  | |
| Herko Electronics, Inc. | PC comp., (+22) | USA | - |  | 80's | PC | - |  | |
|  | Hermac Special Electronics | PC comp. | HOL | - | () | 80's | PC | - | - | 
|  | Hermes (div. Hermes-Precisa)  | Data System, (+26) | SWI | 1964 |  | 70's - 80's | PC | - |  | 
| Hermes Plus Group | PC comp. | YOU | - | () | 90's | PC | - |  | |
| Hermes Precisa Ruf Computer GmbH (HPR) -> Hermes | 1 models | GER | - | () | 80's | MC | - |  | |
|  | Hermes-Precisa International AG (HPI)  | PC comp. | SWI | 1974 | 1989 | 80's | PC | - |  | 
|  | Herofun Bio-Tech Co., Ltd.  | CHN | 2012 | act. | 10's - 20's | PC | - |  | |
| Heron Technology Oy ?  | PC comp. | FIN | - | () | 90's | PC | - |  | |
|  | Hersys | PC comp. | FRA | - |  | 00's | PC | - |  | 
|  | Hertz Computer Corp. | 25 models | USA | 1982 |  | 80's - 90's | PC | - |  | 
|  | Herzke Computer GmbH & Co. KG | HCS 64/12, (+3) | GER | 1972 |  | 70's - 80's | TER, MC | - |  | 
|  | Hetra Computer & Communications Industries, Inc.  | Mark, (+11) | USA | 1968 |  | 70's | PC, MC, TER | - |  | 
| Heurikon Corp. | USA | 1972 |  | 80's | PC | - |  | ||
|  | Heurikon Corp. | Minibox, (+31) | USA | 1972 |  | 70's - 80's | PC |  |  | 
|  | Hewart Microelectronics | Mini6800, (+3) | UK | - | () | 70's | PC | - |  | 
|  | Hewitt Rand Corp.  | PC comp., (+75) | USA | 1983 |  | 90's | PC | - |  | 
|  | Hewlett Packard Co. (HP)  | HP-85, Vectra, (+17021) | USA | 1939 | act. | 70's - 20's | TER, PC, MC, SU |  |  | 
| Hewlett Packard do Brasil Indústria e Comércio Ltda. | HP-85 | BRA | 1967 | () | 80's | PC | - |  | |
|  | Hewlett Packard Enterprise (HPE) | 174 models | USA | 2014 | act. | 10's - 20's | PC |  | - | 
| Hexace Technologies, Inc. | Hexace, Polo, (+2) | USA | - | () | 80's | PC | - |  | |
|  | Hexiang Electronics Co.,  Ltd.  | CHN | - | act. | 10's | PC | - |  | |
|  | HFX Entertainment Ltd. | PC comp. | AUT | - | act. | 00's | PC | - |  | 
|  | HH Electronics | Tiger | UK | 1968 | () | 80's | PC |  | - | 
|  | Hi-Grade Computers Plc | 196 models | UK | 1986 | act. | 80's - 00's | PC |  | - | 
| Hi-Q Computers | PC comp. | USA | - | () | 80's | PC | - |  | |
|  | Hi-Sense Hu Shag, Inc. | PC comp. | TWN | 1984 | () | 80's | PC | - |  | 
| Hi-Tec Enterprises, Inc. | PC comp. | USA | - | () | 80's | PC | - | - | |
|  | Hi-Tech | PC comp. | AUT | 1986 | act. | 80's - 00's | PC | - |  | 
| Hi-Tech USA | 19 models | USA | 1990 |  | 90's | PC | - |  | |
| Hi-Technology Supply Co.  | PC comp., (+9) | RSA | - |  | 90's | PC | - |  | |
|  | Hibertek | HON | - | act. | 00's | PC | - |  | |
|  | Hickok Teaching Systems, Inc. | 1 models | USA | - |  | 60's | SC | - |  | 
|  | HIDevolution  | PC comp. | USA | 2007 | act. | 10's | PC | - |  | 
|  | Hiego Trade Co., Ltd.  | PC comp. | CHN | 2015 | act. | 10's | PC | - |  | 
| High Bit | PC comp., (+2) | ? | - |  | 90's | PC | - |  | |
| High Compac Digital Industria e Comercio Ltda. | PC comp. | BRA | - | () | 90's | PC | - |  | |
| High Definition Systems, Inc. | PC comp. | USA | - | () | 90's | PC | - |  | |
| High Integrity Systems Ltd. | 1 models | UK | - | () | 80's | PC | - | - | |
|  | High Level Hardware (HLH) | Orion 1, (+3) | UK | 1982 |  | 80's | MF, TER |  |  | 
|  | High Performance Technologies, Inc. (HPTi) | 4 models | USA | 1991 | 2011 | 00's - 10's | SU |  |  | 
| High Power Computers | PC comp. | USA | - |  | 00's | PC | - | - | |
|  | High Praise Technology Co., Ltd.  | CHN | 2009 | act. | 00's - 10's | PC | - |  | |
| High Tech Supply | PC comp. | USA | - | () | 80's | PC | - | - | |
| High Tech USA | PC comp., (+2) | USA | - |  | 90's | PC | - |  | |
| High Technologies, Inc. | Mayflower, Inteleport, (+3) | USA | - | () | 80's | PC | - |  | |
| High Victory Technology Co., Ltd. | PC comp. | CHN | 1998 | act. | 00's - 10's | PC | - |  | |
|  | High-Tec EDV-Systeme GmbH | HTC 100 VarioComp | GER | 1982 | act. | 80's | PC | - |  | 
|  | High-Tech Computer Corp. (HTC) | 17 models | TWN | 1997 | act. | 90's - 10's | PC |  |  | 
| High-Tek Corp. | PC comp., (+3) | USA | - | () | 80's | PC | - |  | |
| Highlander | PC comp., (+11) | ? | - | () | 90's | PC | - | - | |
|  | Highlight Computer System, Inc. | TWN | - | () | 80's | PC | - |  | |
| Highmate Corp. | PC comp. | TWN | - | () | 80's | PC | - |  | |
| Highmead Fountain Computer Systems Ltd. | PC comp., (+2) | UK | 1993 |  | 90's | PC | - |  | |
|  | Highscreen (div. Vobis)  | 1 models | GER | - | () | 80's - 10's | PC |  |  | 
|  | Highton Electronics Co., Ltd. | CHN | - | act. | 10's | PC | - |  | |
|  | Highwave Technologies, Inc. | PC comp., (+11) | USA | 1992 |  | 90's | PC | - |  | 
|  | Hilevel Technology, Inc. | 4 models | USA | - |  | 80's | PC | - |  | 
| Hillman  | PC comp. | ? | - | () | 00's | PC | - | - | |
|  | Himedia Technology Ltd.  | CHN | 2005 | act. | 00's - 10's | PC | - |  | |
| HIMS Technologies | PC comp., (+9) | USA | - | () | 90's | PC | - |  | |
| Hinditron Computers | IND | - |  | 80's | MC | - | - | ||
| Hindustan Office Products Limited (HOPE) | BBC Micro clone | IND | - | () | 80's | PC | - |  | |
|  | Hindusthan Computers Ltd. (HCL)  | Micro 2200, 8C, (+1261) | IND | 1976 | act. | 70's - 10's | PC |  |  | 
| HiNet Industrial Co., Ltd. | PC comp. | TWN | - |  | 80's | PC | - |  | |
|  | Hino Electronics Co., Ltd. | CEFUCOM | JAP | 1963 | act. | 80's - 00's | PC |  |  | 
| HINT Corp. | PC comp. | USA | - | () | 90's | PC | - |  | |
|  | HipStreet Electronics  | 17 models | CAN | 2002 | act. | 00's - 10's | PC |  |  | 
| HiQ Computer Systems  | PC comp., (+6) | USA | 1987 |  | 90's | PC | - |  | |
| HiQuality Systems, Inc. | PC comp., (+3) | USA | - | () | 90's | PC | - | - | |
|  | HÃradástechnika Szövetkezet (HT) | ZX clone, (+11) | HUN | 1951 | act. | 80's | PC | - |  | 
| Hiroshi Group | PC comp. | FRA | - |  | 90's | PC | - |  | |
| HIS (-> Honeywell) | USA | - | () | 70's | MC | - |  | ||
|  | Hisense International Co., Ltd. | Chromebook, (+10) | CHN | 1969 | act. | 00's - 10's | PC |  |  | 
|  | Hitachi, Ltd. | HITAC, HIPAC, MSX, (+2248) | JAP | 1910 | act. | 50's - 10's | MF, MC, PC, SU |  |  | 
|  | HiTech Equipment Corp. (HTE) | 5 models | USA | - | () | 80's - 90's | PC | - |  | 
|  | HiTech International, Inc. | PC comp., (+4) | USA | - | () | 80's | PC | - |  | 
|  | Hitech Materials | PC comp. | USA | - | () | 80's | PC | - |  | 
|  | Hiteg Ltd. | CHN | 2005 | act. | 00's - 10's | PC | - |  | |
|  | HiTouch Technology Co., Ltd.  | PC comp. | CHN | - | act. | 00's - 10's | PC | - |  | 
|  | Hitron Technologies | PC comp. | TWN | - | () | 90's | PC | - |  | 
|  | HKI Systems Ltd. (by Saint) | PC comp. | UK | - | act. | 00's | PC | - |  | 
|  | HLBS Tech Pvt. Ltd. | IND | 2004 | act. | 00's - 20's | PC | - |  | |
| HM Systems Plc  | Minstrel, (+20) | UK | 1979 |  | 80's - 00's | PC | - |  | |
| HMC Technology Ltd. | PC comp. | HON | - | () | 90's | PC | - |  | |
|  | HMCW GmbH (Shinobee) | PC comp. | GER | - | () | 00's | PC | - |  | 
|  | HMS Industrial Networks | SWE | - | act. | 00's - 10's | PC | - |  | |
| HMW Data Systems GmbH | 3 models | GER | - | () | 80's | TER | - |  | |
|  | HMW Enterprises, Inc. | 11 models | USA | 1965 | act. | 80's | PC, TER | - |  | 
|  | HNCSMILE  | USA | - |  | 00's | PC | - | - | |
| HNSX Supercomputers, Inc. (NEC+Honeywell) | 5 models | CAN | 1985 | () | 80's - 90's | SU | - | - | |
|  | Hob-bit | Acorn | HOL | - | () | 80's | PC | - |  | 
|  | Hobby Model Roma  | Altair 8800 Mini | ITA | - | () | 20's | PC | - |  | 
|  | Hobert Computing GmbH | PC comp. | GER | - |  | 90's | PC | - | - | 
| HoCoM GmbH | PC comp., (+3) | GER | - |  | 90's | PC | - |  | |
|  | Hoda Technology Co., Ltd. | HON | 2002 | act. | 00's - 10's | PC | - |  | |
|  | Hoffmann + Krippner GmbH  | GER | 1975 |  | 90's - 10's | PC | - |  | |
|  | Höft & Wessel AG  | HW 90300, (+2) | GER | 1978 | act. | 00's - 10's | PC, TER | - |  | 
| Hogan Laboratories, Inc. | CIRCLE | USA | 1929 |  | 50's | SC | - |  | |
|  | Hohner Gesellschaft für Datensysteme und Computer mbH (Hohner GDC)  | GDC, (+33) | GER | 1857 | act. | 70's | PC, TER | - |  | 
| Hokkins Systemation, Inc. | PC comp., (+11) | USA | - | () | 90's | PC | - |  | |
|  | Hokushin Electric Works Ltd.  | HOC 300, (+21) | JAP | 1931 | 1983 | 50's - 70's | SC, MC | - | - | 
|  | Holborn Computer | 9100, (+4) | HOL | 1979 | 1983 | 80's | PC |  |  | 
| Holco Enterprise Co., Ltd. | PC comp. | TWN | 1983 |  | 90's | PC | - |  | |
|  | Holding «Roselektronika» (div. Rostec) | PC comp. | RUS | 1997 | act. | 00's | PC | - |  | 
|  | Holec Control Systems BV | HOL | - | () | 80's | PC | - | - | |
|  | Holital Electronic Technology Co., Ltd.  | CHN | - | act. | 00's - 10's | PC | - |  | |
|  | Holl Ipc Technology Co., Ltd. | PC comp. | CHN | 2002 |  | 00's | PC | - |  | 
| Hollander Associates | USA | 1961 |  | 60's | SC | - |  | ||
|  | Hollandse Signaalapparaten NV (div. Philips) (HSA)  | SATCO | HOL | 1922 | 1990 | 60's | SC | - |  | 
| Hollinbeck Enterprises | 2 models | USA | - | () | 70's | PC | - |  | |
|  | Hollis Technologies | USA | - | act. | 00's - 10's | PC | - |  | |
|  | Holly Computers | PC comp., (+18) | UK | - | act. | 00's | PC | - |  | 
| Holmer | 1 models | GER | - | () | 70's | PC | - |  | |
|  | Home Computer Services | PC comp. | UK | 1998 |  | 00's | PC | - |  | 
|  | Hometech Eelektronik Sanayi Ve Ticaret A.S. | TUR | 2012 | act. | 10's - 20's | PC |  |  | |
|  | Homic s.r.l. | Ada 800 | ITA | - |  | 80's | PC | - |  | 
| Hon Computing Systems | 2 models | USA | 1979 | () | 70's | PC | - |  | |
|  | Hon Hai Precision Industry Co., Ltd. (Foxconn)  | TWN | 1974 | act. | 00's - 10's | PC | - |  | |
| Honda Trading Co., Ltd.  | 1 models | JAP | - | () | 80's | PC | - |  | |
| Honeywell Information Systems  | FRA | 1970 | 1974 | 70's | MF |  |  | ||
| Honeywell Information Systems Italia (HISI) | XPS-100, AX Superteam | ITA | - |  | 80's | PC | - |  | |
|  | Honeywell-Bull, Inc.  | 17 models | USA | 1987 | 1991 | 80's | TER, MF | - |  | 
|  | Honeywell, Inc.  | DATAMATIC, DATANET, HDC, CCD, DDP, DPS, (+463) | USA | 1927 | act. | 60's - 10's | SC, MF, MC, TER, PC |  |  | 
|  | Hong Rui Electron Co., Ltd. | PC comp. | CHN | 2000 | act. | 00's - 10's | PC | - |  | 
|  | Hong Tong Enterprise Co., Ltd. | PC comp. | TWN | - | () | 80's | PC | - |  | 
|  | Hongdafeng Electronic Co., Ltd.  | PC comp. | HON | 1999 | act. | 00's - 10's | PC | - |  | 
| Hongsheng Investment Ltd. | PC comp. | CHN | - | act. | 00's - 10's | PC | - |  | |
|  | Honor | 17 models | CHN | - | act. | 00's - 10's | PC | - |  | 
| Honotron Corp. | PC comp. | TWN | - | () | 90's | PC | - |  | |
|  | Honron Pisces Technology Co., Ltd | PC comp. | TWN | 2009 | act. | 00's - 10's | PC | - |  | 
| Honshu Chamber of Commerce | 1 models | JAP | - | () | 80's | PC | - |  | |
|  | Honsung International Industry Ltd. | CHN | 2005 | act. | 10's | PC | - |  | |
|  | Hoojum Design | PC comp., (+3) | UK | - | act. | 00's | PC | - |  | 
| Hoover Electronics Co. | USA | 1952 |  | 50's | SC | - | - | ||
|  | Hope Computers Pvt Ltd. (-> HOPE) | IND | 1983 | () | 80's | PC | - |  | |
|  | Hope Industrial Systems, Inc. | USA | - | act. | 10's - 20's | PC | - |  | |
|  | Hopestar Sci-Tech Co., Ltd.  | HON | 2005 | act. | 00's - 10's | PC | - |  | |
|  | Hopps & Co. s.n.c. | PC comp. | ITA | - |  | 80's | PC | - |  | 
|  | Horizon Systems | Zephyr, (+5) | FRA | - | () | 80's - 90's | PC | - |  | 
| Horn Computer Electronic Co., Ltd. | PC comp. | TWN | - |  | 80's | PC | - |  | |
| Hornet Technology Corp. | PC comp. | TWN | - | () | 80's | PC | - |  | |
| Hort Industries | USA | - | () | 90's | PC | - |  | ||
|  | Horten AG | SYS-Line PAD 1000 | GER | 1936 | act. | 90's | PC | - | - | 
| Hosch Elektronic | PC comp. | GER | - | () | 80's | PC | - |  | |
| Hotel Computers, Inc. | 1 models | USA | - |  | 70's | MC | - |  | |
|  | Hotel MicroSystems Ltd. | Minstrel | UK | - | () | 80's | PC | - |  | 
| Hoton Computer Technology Co., Ltd. | PC comp. | CHN | 1998 |  | 00's - 10's | PC | - |  | |
|  | Hottinger Baldwin Messtechnik GmbH (HBM) | 1 models | GER | 1950 | act. | 80's | PC | - |  | 
|  | Hotworld Technology Development Co., Ltd.  | CHN | 2007 | act. | 00's - 10's | PC | - |  | |
| House of Computers GmbH (HoC)  | PC comp. | GER | - |  | 90's | PC | - |  | |
| Houston Computer Services, Inc. | 3 models | USA | - |  | 80's | TER | - |  | |
|  | Howard Computers | 69 models | USA | 1968 |  | 90's - 10's | PC | - |  | 
|  | Howellworld Technology Co., Ltd.  | CHN | 1999 |  | 10's | PC | - |  | |
| Howteh Enterprises Co., Ltd. | PC comp. | TWN | 1973 |  | 90's | PC | - |  | |
|  | Hoya Lens Co., Ltd. | HIT-80 | JAP | 1941 | act. | 80's | TER | - |  | 
|  | HP Compaq  | PC comp., (+1204) | USA | 2002 | 2007 | 00's | PC | - | - | 
|  | HPC Systems, Inc. | USA | - | act. | 00's - 10's | PC | - |  | |
|  | HPS SystemTechnik GmbH | 2 models | GER | 1971 | act. | 70's - 80's | PC | - |  | 
|  | HRB Systems, Inc.  | SEMA, (+3) | USA | - |  | 60's - 70's | MF, MC |  |  | 
| HRB-Singer (-> HRB Systems) | USA | - | () | 60's - 70's | MF, MC | - | - | ||
|  | HRC Technologies | Kookaburra | AUS | - |  | 80's | PC | - |  | 
|  | Hsin-Lin Computer Co., Ltd. | PC comp. | TWN | - | () | 80's | PC | - |  | 
|  | HSWR Technology Co., Ltd.  | CHN | 2017 | act. | 10's | PC | - |  | |
| HT Research, Inc. | TeamPro, (+4) | USA | - | () | 90's | PC | - |  | |
| Hua Kim Electroniks | TRASH-80 | KOR | - |  | 80's | PC | - |  | |
|  | Huajunsheng Technology Co., Ltd.  | CHN | - | act. | 20's | PC | - |  | |
| Huaming Computer Co., Ltd. | CEC | CHN | - | () | 80's | PC | - |  | |
|  | Huananzhi | PC comp. | CHN | 2005 | act. | 10's | PC | - |  | 
|  | Huaqi Information Digital Technology Co., Ltd. (aigo)  | PC comp., (+9) | CHN | - | act. | 00's | PC |  | - | 
|  | Huaqin Technology Co., Ltd.  | CHN | 2005 | act. | 10's - 20's | PC | - |  | |
|  | Huaqun Century Photoelectricity Co., Ltd. (Sawink) | CHN | 2010 | act. | 10's - 20's | PC | - |  | |
|  | Huarui Technologies Co., Ltd. | PC comp. | CHN | 2004 |  | 00's - 10's | PC | - |  | 
|  | Huary Development Co., Ltd. | PC comp. | HON | - | act. | 00's - 10's | PC | - |  | 
|  | Huasheng Electronics Co., Ltd. | PC comp. | CHN | 1988 | act. | 00's - 10's | PC | - |  | 
|  | Huawei Technologies Co., Ltd. | 102 models | CHN | 1988 | act. | 00's - 20's | PC, SU |  |  | 
| Huaxiangtai Trading Co., Ltd. | PC comp. | HON | 2013 | act. | 10's | PC | - |  | |
|  | Huayubok Tech Co., Ltd.  | PC comp. | CHN | - | act. | 00's - 10's | PC | - |  | 
| Hübner & Worm GmbH | System II | GER | - | () | 80's | PC | - |  | |
| Hübner Elektronik  | Spectral | GER | - | act. | 80's | PC |  |  | |
| Hugh Symons Group Ltd. | PC comp. | UK | 1974 | act. | 90's | PC | - |  | |
|  | Hughes Aircraft Co. | 41 models | USA | 1932 | 2003 | 50's - 80's | SC, MF, MC, TER | - |  | 
|  | Hughes Network Systems, Inc. | 3 models | USA | 1971 | act. | 80's | MC |  |  | 
|  | Hugo Sachs Elektronik K.G. (HSE) | GER | - | () | 70's | SC | - |  | |
|  | Hui Bao Xiang Tech Co., Ltd. (VGKE)  | CHN | 2012 | act. | 10's - 20's | PC | - |  | |
|  | Huima Technology Co., Ltd  | CHN | 2001 | act. | 10's | PC | - |  | |
|  | Huisheng Technology Co., Ltd.  | PC comp. | CHN | 2008 | act. | 00's - 10's | PC | - |  | 
|  | Huitiancheng Trade Co., Ltd.  | CHN | - | act. | 00's - 10's | PC | - |  | |
|  | Human & Technology Corp. | PC comp. | KOR | - |  | 90's | PC | - |  | 
|  | Human Designed Systems, Inc. (HDS) | Concept, (+37) | USA | 1977 | () | 80's | TER | - |  | 
| Humaneo Sarl  | PC comp. | FRA | 2005 | act. | 00's - 10's | PC | - |  | |
|  | Humantechnik GmbH | Textel, (+3) | GER | 1985 | act. | 90's | TER | - |  | 
|  | Humanus Informatique | PC comp. | FRA | - | () | 90's | PC | - |  | 
|  | Humasoft Elektronika Kft. | PC comp. | HUN | - |  | 90's | PC | - |  | 
|  | Humo Laboratory Ltd. | 4 models | JAP | 1973 | act. | 80's | PC | - |  | 
|  | Hun-Comp Elektronikai Szolgáltató és Kereskedelmi Kft. | PC comp. | HUN | - |  | 90's | PC | - |  | 
|  | Hunan Radio Factory | DJSZ SS, (+2) | CHN | - | () | 80's | PC | - | - | 
|  | Hundyx | PC comp., (+4) | SPA | - | act. | 00's | PC | - | - | 
|  | HuneTec Co., Ltd. | 1 models | TWN | 2000 | act. | 00's | PC | - |  | 
|  | Hungarian Academy of Science (MTA KKCs) | M-3, (+2) | HUN | - |  | 60's | MF | - |  | 
| Hunziker & Gygli AG | A-4 | SWI | 1985 | act. | 80's | PC | - |  | |
|  | Hush Technologies GmbH | PC comp. | GER | - |  | 00's | PC | - |  | 
|  | Hushida Technology Co., Ltd.  | CHN | 2010 | act. | 10's | PC | - |  | |
| Huskey | PC comp. | ? | - | () | 90's | PC | - |  | |
|  | Husky Computers, Inc. (-> DVW Electronics) | 17 models | UK | - |  | 80's | PC |  |  | 
|  | Huyuan Muze S & T. Development Co., Ltd.  | PC comp. | CHN | 1994 | act. | 00's - 10's | PC | - |  | 
| HW Electronics, Inc. (-> Honeywell) | 15K | USA | - |  | 60's | MC | - |  | |
|  | Hwa Kuan Enterprise Co., Ltd. | PC comp. | TWN | - | () | 80's | PC | - |  | 
| HXSTAR Technology Co., Ltd.  | CHN | 2015 | act. | 10's | PC | - |  | ||
|  | Hy Tech Computer Systems, Inc.  | PC comp. | USA | - |  | 90's | PC | - |  | 
| Hyatt Logic Technology, Inc. | PC comp., (+9) | USA | - | () | 90's | PC | - |  | |
| Hyberdata | PC comp. | RUS | - | act. | 00's | PC | - | - | |
| Hybrid System, Inc. | SS-50 | USA | - |  | 60's | SC | - |  | |
| Hydril Co. | USA | - | () | 70's | ? | - | - | ||
|  | Hymco Technologies, Inc. | PC comp. | USA | - |  | 90's | PC | - |  | 
|  | Hyosung Corp.  | 13 models | KOR | 1966 | act. | 80's | PC |  |  | 
| Hyosung NAS Co.  | KOR | 1985 |  | 80's | PC | - |  | ||
|  | Hyosung-Hitachi  | 4 models | KOR | - |  | 80's | PC | - |  | 
| Hypec Electronics Pty Ltd. | PC comp., (+6) | AUS | - |  | 80's - 90's | PC | - |  | |
|  | Hyperbook  | PC comp. | POL | 2006 | act. | 00's - 10's | PC | - |  | 
|  | HyperData Direct | PC comp., (+82) | TWN | - | () | 90's | PC | - |  | 
| HyperData Technology Corp. | 3 models | USA | 1991 |  | 90's | PC | - | - | |
|  | HyperMegaNet GmbH (PearC) | PC comp. | GER | 2009 |  | 00's | PC | - |  | 
|  | HyperShark Technologies Corp. | TWN | 2014 | act. | 10's - 20's | PC | - |  | |
|  | HyperSonic Performance Systems | PC comp., (+15) | USA | - | act. | 00's | PC | - |  | 
|  | Hypertec Group, Inc. | CAN | 1984 | act. | 90's - 20's | PC | - |  | |
|  | Hypertec Systems, Inc. (div. Ciara Technologies) | PC comp., (+3) | CAN | 1986 | () | 90's | PC | - |  | 
| Hypertech Corp. | GTU-1 | USA | - | () | 70's | TER | - |  | |
| Hypertechnologies Ciara, Inc. (-> Ciara Technologies) | PC comp. | CAN | - |  | 00's | PC | - |  | |
|  | Hyrican Informationssysteme AG  | PC comp., (+3) | GER | - | act. | 00's - 20's | PC | - | - | 
|  | Hystou Technology Co., Ltd.  | CHN | 2013 | act. | 10's - 20's | PC | - |  | |
|  | Hytec Microsystems Ltd. | UK | 1980 |  | 80's | PC | - |  | |
|  | Hyundai Computer | SPARC clone, PHONE, (+197) | KOR | 1947 | act. | 80's - 10's | PC, TER |  |  | 
|  | Hyundai MultiCAV Computer Co., Ltd. | MultiCAV, (+55) | KOR | 1984 | act. | 90's | PC | - |  | 
|  | HyunJu Computer Co., Ltd. | PC comp., (+74) | KOR | 1989 | act. | 90's - 00's | PC | - |  |