7 Developer : Miles Gordon Technology Manufacturer : Miles Gordon Technology OS : SAM BASIC Year of Release : 1989 Units sold : 12000 CPU : Zilog Z80B @ 6 MHz Memory : 256 KB/512 KB (4.5 MB max.) Storage : Cassette recorder, 3.5 inch floppy disk Graphics : 4 Modes (256×192 / 512×192) and 128 colour palette