I once filled up half on my parents garage with PC's and boards I picked up on the cheap at thrift sales and garage sales and boot sales, at one time I had 12 PC's and various boards from Sun Micro-systems, old Apple Macs x3 and various AMD and Intel boards... In the end I gave most of them away, …
The movie Electric Dreams was dedicated to the memory of the Univac 1 - the first commercial computer produced in the United States. It looks like a Victor 9000 Sirius or Ollivetti - But as you've already surmised it's probably a prop, very much like the PC in War-games, which was also a prop, which …