windows nt 3.1

from The Free On-line Dictionary of Computing (8 July 2008)

Windows NT 3.1

   <operating system> {Microsoft}'s first version of {Windows
   NT}, released in September 1993, price UKP 395, after having
   been in {beta-test} for as long as anyone could remember.

   The person responsible for {VMS} on the {DEC VAX} [who?] was
   also responsible for Windows NT.  Incrementing each letter in
   VMS yields WNT.

   (http://win2000mag.com/Articles/Index.cfm?ArticleID=4494).

   (2000-08-12)