Novell, Inc.'s proprietary networking operating system for the IBM PC. NetWare uses the IPX/SPX, NetBEUI or TCP/IP network protocols. It supports MS-DOS, Microsoft Windows, OS/2, Macintosh and Unix clients. NetWare for Unix lets users access Unix hosts. NetWare 2.2 is a 16-bit operating system, versions 4.x and 3.x are 32-bit operating systems.