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)