Changes

====History====

*Spectrum was released in the UK in 1982. The Amstrad was released in the UK in 1984.

====CPU, RAM and basic Harware====

*Spectrum (48K machine) has 48K RAM, approx 6.5k of this is screen. The Amstrad has 64K ram, approx 16K of this is screen.

* The Amstrad could control the cassette motor, turning it on and off under software control to pause loading of software. The Spectrum didn't have this, you had to manually stop and play the tape.

====Video====

*Spectrum and Amstrad both have a bitmapped display.

====Sound====

*Spectrum (128K model and later) and Amstrad both have an AY-3-8912 sound chip. (1.7Mhz clock for AY in spectrum, 1.0Mhz clock for AY in Amstrad).