The challenge is identifying gear in late 50's and early 60's film and TV.
As far as personal computers go, let's face it--without networking, a personal computer is of marginal use to the average person. We use personal computers not so much to compute as to communicate. On a space station, communication with terrestrial networks is probably not so easy. If you have an omnipresent intelligent computer in your dwelling, why do you need a personal computer? Got a question? Just ask it and the HAL will respond.
I think the biggest technological gaffe (other than the overly-optimistic timeline) was the size if HAL. If anything, because of speed-of-light restrictions, computers are getting smaller as they get faster.
Also, understand that "2001" spent years in the can before it was finally released, so its view was remarkable, being filmed when systems such as the IBM System/360 mainframes were very new. I can't fault it too much.