Amstrad CPC

From Video Game Music Preservation Foundation Wiki
Jump to: navigation, search
Platform - CPC.png
Amstrad CPC
Released: 1984-??-??
Discontinued: 199?-??-??
Developer: Amstrad
Type: Hardware

The Amstrad CPC (short for Colour Personal Computer) is an 8-bit home computer released by Amstrad. The built-in operating system mainly consists of a BASIC dialect which was developed specifically for the new platform by Locomotive Software Ltd.

The CPC has always been very popular in France. In German-speaking countries, it was distributed by Schneider and renamed to Schneider CPC. Magazines and users often call the platform just Amstrad or Schneider.



CPC 464

The original model has a built-in tape recorder and 64 KB.


This short-lived model has a built-in 3-inch disk drive and 64 KB.


The most popular model has a built-in 3-inch disk drive and 128 KB.

Music and Sound

The CPC has a built-in General Instrument AY-3-8912 chip, clocked at 1 Mhz (a quarter of the Z80 CPU, 4 Mhz), allowing square waves from 15–62500 Hz, around thrice as high as a human can hear, and noise from 2016–62500 Hz.

Just like the later Game Boy, the CPC has a built-in speaker which outputs all sound in mono, and a 3.5 mm jack to output in stereo. This is possible since the AY-3-8910 chip series outputs each channel through its own pin. Similarly to the later Amiga, though, all panning is fixed: Channel A is always hard left, channel B in the middle, and channel C hard right.