First computer, TI-99/4A, bought around 1983/4, as it was EOL shortly after we got it!
Followed by an Amstrad CPC 464
Followed by an Amstrad 1512 FD/HD, bought from a dealer in Comber
Followed by an IBM 486 machine that shipped with Windows 3.1
Home built Pentium-130 (Abit mobo, Matrox graphics, massive 17″ Dell CRT)
Shuttle XPC SNxxx