These are my computers used for hobby.
Portable Mac Ibook G3 a 366 mherz with 160 m. ram, exstension of a Power G4 that I use at work.
PC Pentium 3-800 256 ram with diffferent exstensions: scanner, dvd, master, zip, soundblaster live, modem, hub,etc.
For the radio just an old (sic) PC Pentium 120.