after WWII
No computers.
By most definitions, first generation computers were the ones built with vacuum tubes.
Yes. The first computer was built in the 1930s. The first personal computers hit the market in 1981.
Computers were built for, of course, Humans.
During WW2, but the first was not built until 1948.
US Government.
The first computers could not be purchased, therefor your question has no answer as written.Some early computers were:ABC, built on a university grantHarvard Mark I, built by IBM on a Navy cost plus contractENIAC, built on an Army cost plus contractetc.
Glenn Curtiss built the first aircraft for the US Navy in 1910.
http://en.wikipedia.org/wiki/Computers
the turtle was built in 1775
The first ones were designed and built by Steve Wozniak, in 1976.
April 1st, 1976 Apple released the Apple I (and started Apple computers). They were hand built by Steve Wozniak and first shown in California to Homebrew computer club, so I presume they were built there.