[/b]News Flash!!![/b]
"NT" no longer stands for New Technology...
The New Technology moniker was adopted back in the mid to late 1980s, when
MS broke off development paths with IBM over the next version of OS/2.
IBM was continuing work on OS/2 version 2.0 (2.1) while MS was carrying over
to create OS/2 version 3. Later they changed the name to OS/2 NT
(for "New Technology"), and then again to Windows NT.
Note, AFAIK the NT logo was already there before Dave Cutler joined Microsoft.
(Edit: I was wrong, but it was still called NT OS/2 when he joined)
So the NT used to stand for New Technology...
BUT!!!
FTC (Federal Trade Commission) regulations have recommended limits on the
length of time a product can be called "new". After a certain reasonable
amount of time, a product or technology is not new anymore.
(As best I can tell, its not against the law in itself, but would be
considered as part of a deceptive advertising campaign to have continued
using "new technology" to describe a 3-4 year old OS design.)
The limit on the "New Technology" trademark ran out for MS sometime
during the NT 4.0 lifecycle. Which was probably another reason for them
changing the name to Windows 2000 on the next release.
After that, MS changed the description to "based on NT technology" where
the NT doesn't really mean anything other than as a reminder of what OS
the later releases were based on.
So for the 2 bonus mark answer:
NT used to stand for "New Technology" as far as MS marketing was concerned.
NT now represents the OS release that the current versions were based upon.
See Also
The Architects: First, Get the Spec Right