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PC-9800 series

NEC PC-9801PC-98PC-9801
This had not been possible under NEC's proprietary PC-98 system, which was the market leader before DOS/V emerged.
In 1990, IBM Japan introduced the DOS/V operating system which enabled displaying Japanese text on standard IBM PC/AT VGA adapters.

PC Open Architecture Developers' Group

OADGPC Open Architecture Developer Group
The promotion of DOS/V was done by IBM and its consortium called PC Open Architecture Developers' Group (OADG).
IBM developed the operating software DOS/V in Japan, and licensed it to other Japanese PC manufacturers.

IBM 5550

IBM5550Multistation 5550
In early 1980s, IBM Japan released two x86-based personal computer lines for Asian-pacific region, IBM 5550 and IBM JX.
IBM later introduced IBM JX for home users in Japan, Australia and New Zealand, and DOS/V for both business and home users in Japan.

MS-DOS

DOSMS-DOS 5.0MS-DOS 6.0
Affected issues include Japanese (DOS/V), Korean, Arabic (ADOS 3.3/5.0), Hebrew (HDOS 3.3/5.0), Russian (RDOS 4.01/5.0) as well as some other Eastern European versions of DOS.

Microsoft Japan

Japanese branchMicrosoft Kabushiki KaishaMSN Japan
After the committee, Microsoft Japan got a contract with IBM Japan to receive source code of DOS/V.
In October 1990, IBM Japan announced the DOS/V.

DOS

COM1AUX:LPT1
DOS/V was a Japanese computing initiative starting in 1990 to allow DOS on IBM PC compatibles with VGA cards to handle double-byte (DBCS) Japanese text via software alone.

AX architecture

AXAX consortiumJapanese Enhanced Graphics Adapter
Kanji fonts and other locale information were stored on the hard disk rather than on special chips as in the preceding AX architecture.
In 1990, IBM Japan unveiled DOS/V which enabled IBM PC/AT and its clones to display Japanese text without any additional hardware using a standard VGA card.

IBM Yamato Facility

IBM Yamato Development LaboratoryYamatoIBM Fujisawa Development Laboratory
In 1987, he started developing DOS/V during spare time at IBM Yamato Development Laboratory.

DBCS

TBCSdouble-byteDouble-Byte Character Set
DOS/V was a Japanese computing initiative starting in 1990 to allow DOS on IBM PC compatibles with VGA cards to handle double-byte (DBCS) Japanese text via software alone.

IBM Personal System/55

PS/55IBM PS/55Personal System/55
It was developed by IBM for its PS/55 machines (a localized version of the PS/2).
These machines cannot run the Japanese DOS (required DOS/V).

Video Graphics Array

VGAVGA graphicsVGA card
DOS/V stands for "Disk Operating System/VGA" (not "version 5"; DOS/V came out at approximately the same time as DOS 5).

FM Towns

FM-TownsFujitsu FMRTowns OS
Eventually the FM Towns lost much of its uniqueness by adding a DOS/V (PC clone plus DOS with native Japanese language support) compatibility mode switch, until Fujitsu finally discontinued making FM Towns specific hardware and software and moved to focus on the IBM PC clones (Fujitsu FMV) that many Japanese manufacturers—who previously were not players in the PC market—were building by the mid to late 1990s.

DR-DOS

DR DOSDR DOS 6.0DR-DOS 7.02
Digital Research released a Japanese DOS/V compatible version of DR DOS 6.0 in 1992.
In July 1992, Digital Research Japan released DR DOS 6.0/V, a Japanese DOS/V compatible version of DR DOS 6.0.

Personal NetWare

Virtual Loadable ModuleLAN WorkPlace for DOSNetWare Lite
A Japanese version of NetWare Lite named "NetWare Lite 1.1J" existed in 1992 for four platforms (DOS/V, Fujitsu FM-R, NEC PC-98/Epson PC and Toshiba J-3100) and was supported up to 1997.

IBM PC compatible

PCPC compatibleIBM PC compatibles
DOS/V was a Japanese computing initiative starting in 1990 to allow DOS on IBM PC compatibles with VGA cards to handle double-byte (DBCS) Japanese text via software alone.

IBM

International Business MachinesIBM CorporationInternational Business Machines Corporation
It was developed by IBM for its PS/55 machines (a localized version of the PS/2).

IBM Personal System/2

PS/2IBM PS/2Personal System/2
It was developed by IBM for its PS/55 machines (a localized version of the PS/2).

Kanji

on'yomikun'yomikokuji
Kanji fonts and other locale information were stored on the hard disk rather than on special chips as in the preceding AX architecture.

NEC

NEC CorporationNEC Home ElectronicsNEC Avenue
This had not been possible under NEC's proprietary PC-98 system, which was the market leader before DOS/V emerged.

Digital Research

DRDigital Research, Inc.Digital Initiatives
Digital Research released a Japanese DOS/V compatible version of DR DOS 6.0 in 1992.

List of international subsidiaries of IBM

IBM JapanInternational subsidiaries of IBM
In early 1980s, IBM Japan released two x86-based personal computer lines for Asian-pacific region, IBM 5550 and IBM JX.

IBM JX

JX
In early 1980s, IBM Japan released two x86-based personal computer lines for Asian-pacific region, IBM 5550 and IBM JX.

IBM PCjr

PCjrIBM PC JrChiclet rule
The JX extended IBM PCjr and IBM PC architecture.

Intel 8088

808880C888088 processor
The JX used 8088 processor instead of faster 8086 processor because IBM thought a consumer product of JX mustn't surpass a business-class 5550.