Arnold is an Amstrad CPC / CPC+ emulator for Mac OS X. You can use it to play old games or run old software that was written for CPC. And there is plenty of it – Amstrad CPC was one of the most successful home computers in the 80s.
Arnold supports emulation for the following models:
– CPC 464 (64KB RAM with tape drive)
– CPC 664 (64KB RAM with 3″ floppy drive)
– CPC 6128 (128KB RAM with 3″ floppy drive)
– 464 Plus (64KB RAM with tape drive)
– 6128 Plus (128KB RAM with 3″ floppy drive)
– KC Compact (East German clone of Amstrad CPC)
Arnold is free, and you can get it from developer’s website. it’s great for a trip down the memory lane.