Computers I owned quite some time ago:
Apple iMac: 2 GHz G5, 512 Mb, 160 Gb, 17” TFT, OS-X 10.4
an ACER Aspire 3000: 1,3 GHz Duron, 20 Mb, 256 Mb, 15” LCD. used to run Gentoo Linux and at the end of its life Kubuntu Linux.
a Pentium 90 Mhz (pre-mmx), 24 Mb, 1,2 Gb Hdd, cd-rom and a 15” CRT; It had Win98 and after I added a 4 Gb hdd also Slackware linux (upto version 7.0 if I'm not mistaken).
An Amiga 500;
a Sony HB 500 MSX2;
a Goldstar FC200 MSX;