Interesting… I see the Multivac series of stories dates from 1955. We know a later version of Asimov was well aware of home computers - he appeared in Radio Shack adverts - but in 1955 a home computer would have been a very singular thing! LINC dates from the early 60s:
(We see Mary Allen Wilkes using a LINC in her parent’s home in 1965.)
So I’d say Multivac appears as a computer in old stories, rather than an old computer. And therefore a good one to mention in this thread!