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OS/2 2.0 was the first 32-bit release of OS/2, and the first to feature the Workplace Shell. OS/2 2.0 was released in April 1992. At the time, the suggested retail price was US$195, while Windows retailed for $150. [32] OS/2 2.0 provided a 32-bit API for native programs, though the OS itself still contained some 16-bit code and drivers.
ArcaOS is a proprietary operating system based on OS/2, developed and marketed by Arca Noae, LLC under license from IBM. [3] [4] It was first released in 2017 and builds on OS/2 Warp 4.52 by adding support for new hardware, fixing defects and limitations in the operating system, and by including new applications and tools, [5] and includes some Linux/Unix tool compatibility.
OS/VS2 (Operating System/Virtual Storage 2, Virtual-memory version of OS/360 MVT) OS/VS2 R1 (Called Single Virtual Storage (SVS), Virtual-memory version of OS/360 MVT but without multiprocessing support) OS/VS2 R2 through R3.8 (called Multiple Virtual Storage, MVS, eliminated most need for VS1). MVS/SE (MVS System Extensions)
Can keep RTC in UT [2] Amiga Exec: AmigaOS: Commodore International: HUNK: Exokernel (atypical) [3] No No No Yes No No Yes No No No Amiga Exec SG (2nd Generation) AmigaOS 4: Hyperion Entertainment: ELF/HUNK: Exokernel (atypical) No No No Yes No No Yes No No ? DragonFly BSD kernel: C: DragonFly BSD: Matt Dillon: ELF: hybrid: Ipfirewall, PF: Yes ...
Originally, the name "POSIX" referred to IEEE Std 1003.1-1988, released in 1988. The family of POSIX standards is formally designated as IEEE 1003 and the ISO/IEC standard number is ISO/IEC 9945. The standards emerged from a project that began in 1984 building on work from related activity in the /usr/group association. [4]
OS/2 and Windows 3.1x: Windows 11 (version 23H2) December 12, 2023: One time license fee Proprietary; Source-available: Workstation, personal computer, media center, Tablet PC, embedded system Windows Server (NT family) Microsoft: 1993 OS/2: Windows Server 2022 (version 10.0.20348) August 18, 2021
This subsystem implements only the POSIX.1 standard – also known as IEEE Std 1003.1-1990 or ISO/IEC 9945-1:1990 – primarily covering the kernel and C library programming interfaces which allowed a program written for other POSIX.1-compliant operating systems to be compiled and run under Windows NT. The Windows NT POSIX subsystem did not ...
HPFS (High Performance File System) is a file system created specifically for the OS/2 operating system to improve upon the limitations of the FAT file system. It was written by Gordon Letwin and others at Microsoft and added to OS/2 version 1.2, at that time still a joint undertaking of Microsoft and IBM, and released in 1988.