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OS/2 is a proprietary computer operating system for x86 and PowerPC based personal computers.It was created and initially developed jointly by IBM and Microsoft, under the leadership of IBM software designer Ed Iacobucci, [2] intended as a replacement for DOS.
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.
So very soon an IBM-compatible architecture became the goal, and before long all 8086-family computers closely emulated IBM hardware, and only a single version of MS-DOS for a fixed hardware platform was all that was needed for the market. This specific version of MS-DOS is the version that is discussed here, as all other versions of MS-DOS ...
The latter had been made available only to holders of existing OS/2 support contracts; it included the following new features (among others) compared to the final retail version of OS/2 (1996's OS/2 Warp version 4): IBM-supplied updates of software and components that had shipped with the 1999 release of OS/2 Warp Server for e-business, but had ...
The Workplace Shell (WPS) is an object-oriented desktop shell (also called desktop environment) produced by IBM's Boca Raton development lab for OS/2 2.0. It is based on Common User Access and made a radical shift away from the Program Manager type interface that earlier versions of OS/2 shared with Windows 3.x or the application-oriented WIMP ...
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.
The helpers are 16-bit (for OS/2 1.x) or 32-bit (for OS/2 2.x and up), are executed in user-space and contain the code used for typical filesystem maintenance, and are called by CHKDSK and FORMAT utilities. This four-piece scheme allowed developers to dynamically add a new bootable filesystem, as the ext2 driver for OS/2 demonstrated.
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