I have yet to see any proper technical information on
either ENIAC or Colossus. Alas most of the technical-looking links on the
currently-discussed ENIAC site go pages whre you have to be an IEEE member to go further.
You might like this page:
http://ftp.arl.army.mil/~mike/comphist/46eniac-report/index.html
But I was under the impression that neither, in their
original form, were stored-program machines
True.
and that to me would seem to be one criterion for
defining 'computer'
One could even get into the definition of stored program. ENIAC's
program was in the form of patch cables until a later revision allowed
for stored-in-memory programs.