Acorn Archimedes A3000
I have the main unit.
type computer
country England
year 1989
os RISC OS 2.00
cpu ARM 2
speed 8 MHz
ram 1 MB
rom 512 KB
disk 3,5″
graphic 640×512 (256)
colors 4096
sound 8 channels
ports expander port, parallel, RGB, Mono video, headphones, serial