 Jointly developed by Microsoft Corp. and IBM to operate with Intel Corp.'s microprocessors, OS/2 was originally a 16-bit operating system that was designed to work with 286 processors and first introduced in 1987. Today, OS/2 is a graphical interface similar to Windows; however, it can also be run through command-line entries, such as DOS. In fact, many OS/2 and DOS commands are the same. In 1992, a new 32-bit version was released to operate with 386 and above PCs and at this time was now solely an IBM product. Later
in 1994, IBM released a version it called OS/2 Warp that included Internet access and additional features. At the same time Microsoft was working on OS/2 version 3.0; however, it later became Microsoft Windows NT. OS/2 never became as popular as the other Microsoft operating systems, and software developers never created a substantial number of programs to run primarily under OS/2. Although some computer experts say later versions of OS/2 are superior to Windows, Windows and the number of products created for it still dominate the market today. IBM officially announces on July 14, 2005 that all sales of OS/2 will end on December 23, 2005 and that all support from IBM for OS/2 will end on December 16, 2005. Also see: Operating System definitions
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