2012 imac 4gb ram, 500gb HDD in BENTLEIGH EAST, Victoria for sale

2012 imac 4gb ram, 500gb HDD
2012 imac 4gb ram, 500gb HDD
2012 imac 4gb ram, 500gb HDD

Hi i have an apple imac , decent machine , needs a new copy of mountain lion or whatever it is. i am not a mac person . serial number is ym8460unze2 bought off a freind thought i would use it .. im not a fan it turns out