Microsoft released Windows NT 4.0 to manufacturing partners on July 31, 1996. Codename Cairo marked an important milestone in the history of Microsoft’s original server OS and would far outlive Microsoft’s original plans as enthusiasts and administrators clung to it, as older readers will be aware. Headlining features of NT 4.0, which made it a winner, include the melding of the intuitive new Windows 95 UI into the fully 32-bit enterprise OS. It was also notable for being the last version of NT to support Alpha, MIPS, or PowerPC CPU architectures.
Historical Windows NT timeline:
