OS/2

   A 32-bit multitasking operating system from IBM that runs on Intel processors. OS/2 was developed jointly by Microsoft and IBM as the successor to MS-DOS, with Windows as a stop-gap measure until OS/2 was ready. When Microsoft chose to back Windows, placing considerable resources behind the breakthrough release of Windows 3, IBM took control of OS/2 development.

   The current version of OS/2 Warp includes voice-recognition software, Internet access, and peer-to-peer networking. It supports Novell Directory Services (NDS) and includes IBM Personal Communications/ 3270, a package used to communicate with Systems Network Architecture (SNA) systems over TCP/IP networks. IBM's server for network environments is OS/2 Warp Server.