Q189794
Sign in to saveOS/2 (Operating System/2) is a proprietary computer operating system for x86 and PowerPC based personal computers created and initially developed jointly by IBM and Microsoft, under the leadership of IBM software designer Ed Iacobucci, intended as a replacement for DOS. The first version was released in 1987. A feud between the two companies beginning in 1990 led to Microsoft's leaving development solely to IBM, which continued development on its own. OS/2 Warp 4 in 1996 was the last major upgrade, after which IBM slowly halted the product as it failed to compete against Microsoft's Windows; u
Key facts
- OS.name
- OS/2
- OS.logo
- Os2logo.svg
- OS.logo size
- 120px
- OS.logo alt
- OS/2 Logo
- OS.screenshot
- Os2W4.png
- OS.caption
- OS/2 Warp 4 desktop. This version was released on 25 September 1996.
- OS.screenshot_size
- 330px
- OS.screenshot_alt
- OS/2 Warp 4
- OS.developer
- IBMMicrosoft (1.0–1.3)
- OS.working state
- Historical, now developed as ArcaOS
- OS.source model
- Closed source
- OS.discontinued
- yes
- OS.latest release version
- 4.52
- OS.marketing target
- Professionals, servers
- OS.programmed in
- C, C++ and assembly language
- OS.language
- Chinese, English, French, German, Italian, Japanese, Korean, Spanish, Slovenian, Portuguese, Russian
- OS.prog_language
- REXX, Object Rexx, Java
- OS.supported platforms
- IA-32, PowerPC
via Wikipedia infobox
Article
37 sectionsContents
- Development{{anchor|Development history}}
- 1985–1990: Joint IBM–Microsoft development
- OS/2 1.0 (1987){{anchor|1.0}}
- OS/2 1.1 (1988){{anchor|1.1}}
- OS/2 1.2 (1989){{anchor|1.2|1.21}}
- 1990: Breakup
- OS/2 1.3 (1990){{anchor|1.3}}
- 1990–1996: Post-breakup{{anchor|32-bit era}}
- OS/2 2.0 (1992){{anchor|2.0}}
- OS/2 2.1 (1993){{anchor|2.1}}
- OS/2 Warp 3 (1994){{anchor|OS/2 Warp|3.0|3.0J|The "Warp" years}}
- Workplace OS (1995) {{Anchor|Workplace OS|WorkplaceOS}}
- OS/2 Warp 4 (1996){{anchor|Warp 4|4.0|4.5}}
- 1996–2001: Downsizing{{anchor|Downsizing}}
- 2001–2006: Discontinuation and end-of-life{{anchor|Fading out}}
- 2001–present: Third-party development{{anchor|Third-party development}}
- Petitions for open source
- Summary of releases
- Features and technology
- User interface
- Commands
- Networking
- Drivers
- Virtualization
- Security niche
- Problems
- Historical uses
- Banks
- Transport operators
- Retail
- Other notable users
- Awards
- IBM products using OS/2
- See also
- References
- Further reading
- External links
OS/2 (Operating System/2) is a proprietary computer operating system for x86 and PowerPC based personal computers created and initially developed jointly by IBM and Microsoft, under the leadership of IBM software designer Ed Iacobucci, intended as a replacement for DOS. The first version was released in 1987. A feud between the two companies beginning in 1990 led to Microsoft's leaving development solely to IBM, which continued development on its own. OS/2 Warp 4 in 1996 was the last major upgrade, after which IBM slowly halted the product as it failed to compete against Microsoft's Windows; updated versions of OS/2 were released by IBM until 2001.
The name stands for Operating System/2 because it was introduced as part of the same generation change release as IBM's Personal System/2 (PS/2) line of second-generation PCs. OS/2 was intended as a protected-mode successor of PC DOS targeting the Intel 80286 processor. Notably, basic system calls were modelled after MS-DOS calls; their names even started with "Dos" and it was possible to create "Family Mode" applications – text mode applications that could work on both systems. Because of this heritage, OS/2 shares similarities with Unix, Xenix, and Windows NT. OS/2 sales were largely concentrated in networked computing used by corporate professionals.