Acorn Electron
I have the main unit and power adapter.
type computer
country U.K
year 1983
os Acorn MOS v2
cpu 6502A
speed 1 MHz
ram 32 KB
rom 32 KB
graphic 160 x 256 (2 or 16 colors)
colors 16
sound 1 channel, 7 octaves
ports expander port, RF, parallel, video, RGB