Amstrad CPC 464

Manufacturer: Amstrad
Year: 1984
Original Price: 200 – 300 pounds
Units Sold: approx. 2 million

Operating System: AMSDOS
CPU: Zilog Z80 @ 4Mhz
Memory: 64K
Sound: General Instruments AY-3-8912

Source: https://en.wikipedia.org/wiki/Amstrad_CPC_464