1 ) Perforated cards supertoaster calculation machine in the Math Investigation Institute in Bulgaria. My gandfather was one of the professors there, so they let me mess with their supertoasters (I was 5 years at that time)
2 ) Pravets 8 (an 8 bits non hard drive machine. An IBM clone fabricated in Bulgaria) (I was 7 years old)
3 ) Pravets 16 (same as the other, but this had a 16 bits processor and again no hard drive). I coded my first virus on that thingy. Then spreaded it on the firefight departament network in Sofia, Bulgaria (My uncle was the boss there, so I did not get spanked by the authorities... it was really funny). (I was 9 years old)
4 ) Macintosh LCII (With this box I learned Mac OS internals that helped me to become Apple software tester some time after that).
5 ) Macintosh PPC 7200 (Here is when I became Apple software tester. It was really funny) (was 15 years old)
6 ) Macintosh G3 (I remember my funny times with this making Linux ports to PPC) (was 17 years or so).
7 ) PII 350 (With this one I built my first Linux distro for x86 architecture). Currently this box is my test server.
8 ) K6 400 laptop (I bought it at the same time as I bought the PII box). Currently I use this box only to play games.
9 ) Celeron 1.1 GHz Laptop (I have had some fun with it. Now It's my mother's computer).
These are the computers I have bought... and these are the ones that I have had or just have at home but are not mine.
1 ) Hardware testing dual P4 laptop. This one was very funny. It burned after I let it 2 weeks cracking MD5 encrypted passwords.
2 ) Sun 450... Sun rules
3 ) SGI Indigo 2. Very old box, but some time ago was very good for graphics.
4 ) A Compaq server. I had to test it's compatibility with linux. All was ok except that it was unable to run quake properly
5 ) IBM series servers for linux. Same as the Compaq server, but this time they were several models.
6 ) HP server. A company wanted a custom made Linux distro to run on that thing. They let me the server at home and forgot to tell me what they wanted me to do for them. Also the phone number they provided me was shutdown. After one year they requested their server back.
I have had some other boxes, but these are the most funny ones.