30 years old. 1st computer (and first portable) was an Osborne. Can't remember the model number, but it ran CPM off 2 8" floppies. 3 1/2 " CRT - still works and I have some games for it. It is the size of a large suitcase though.
First desktop BBC & BBC model B, closely followed by ZX81, Jupiter ACE (still love Forth ) and Dragon 32 and 64.
Now I just love my collection - have added to it with some SGI Personal Iris' and Indigo 1's. My attic museum of old computers.

Very jealous of a colleague at work - his garage is filled by a Cray. It's old but you should see it run dnet

Boy - how off topic am I?