Monday, November 19, 2007

IBM (OS/2)


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[edit] Summary
OS/2 version 2 box jacket. The purpose of this image's existence in Wikipedia is to illustrate an article that describes the product. In the version depicted, the product packaging says it:

Requires 4MB RAM
Intel 80386SX or higher CPU
either 1 CD-ROM or (in this box) Diskette media: 25 5.25-inch HD (1.2MB) diskettes
Box says it runs Windows 2.0/386 applications, DOS applications and OS/2 applications.
Can use HPFS- or FAT-formatted hard disks.

IBM grew concerned about the delays in development of OS/2 2.0 and the diversion of IBM funds earmarked for OS/2 development towards Windows[citation needed]. Initially, the companies agreed that IBM would take over maintenance of OS/2 1.0 and development of OS/2 2.0, while Microsoft would continue development of OS/2 3.0. In the end, Microsoft decided to recast NT OS/2 3.0 as Windows NT, leaving all future OS/2 development to IBM. From a business perspective, it was logical to concentrate on a consumer line of operating systems based on DOS and Windows, and to prepare a new high-end system in such a way as to keep good compatibility with existing Windows applications. While waiting for this new high-end system to develop, Microsoft would still receive licensing money from Xenix and OS/2 sales. Windows NT's OS/2 heritage can be seen in its initial support for the HPFS filesystem, text mode OS/2 1.x applications, and OS/2 LAN Manager network support. Some early NT materials even included OS/2 copyright notices embedded in the software.[citation needed]

One example of NT OS/2 1.x support is in the WIN2K resource kit. OS/2 support also includes Presentation Manager support with the addition of the Windows NT Add-On Subsystem for Presentation Manager

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