The BBC Master Compact was a British personal computer launched in 1986 by Acorn Computers, based on the 65C12 processor running at 2 Mhz. The BBC Master Compact was fitted with 128 kb of RAM and ran the BBC BASIC ADFS operating system. The
BBC Master Compact was available with a 12-inch green monochrome or 8-colour monitor and had a display resolution of 640 x 256 pixels or 40 or 80 x 20 character cells. The BBC Master Compact used an external 640 kb 3.25 inch floppy disk drive for storage. Research BBC Master Compact