Thanks to you both (also to a fellow Australian?) but I am far away in France; hang with me please I am not totally computer savvy, however I have found out this info
2.4 GHZ Intel Core Duo
Mem 1Go 800 mhz DDR2 (or Z?) SDRAM, can't sem to find available memory will ask my son!
Had a new hard drive fitted about 18 months ago,( Hitachi the boy said it was large capacity one)? as the previous one kind of gave up, otherwise the I Mac is fine, and I don't like much Firefox; maybe because I aint used to it? lol
Thanks again!