The Amstrad CPC 664 was the successor to the CPC 464.
The main difference was that the cassette deck was replaced by a 3" (2.8") floppy disk drive. Like the CPC 464 it was sold with a choice of 3 display options:
- Colour monitor;
- Greenscreen monitor;
- TV Modulator.
The computer drew its power, and the power for the disk drive, from the monitor (or TV modulator). Amstrad had a ethos that the entire computer setup should be powered from a single 13A plug.
The CPC 664 had a built in floppy disk drive. This made loading and saving programs much more reliable and quicker using tape.
It had a full QWERTY keyboard and a numeric keypad which doubled as function keys. It also had a cluster of arrow keys.
It had 64k of memory built in. This was expandable via a RAM pack which plugged into the expansion socket on the back of the computer.
Some of the peripherals that were available were:
- Amstrad Speech Synthesizer & amplifier (SSA-1)
- Amstrad Disk-Drive Interface (with drive) (DDI-1)
- Amstrad Floppy Drive (second drive for DDI-1) (FD-1)
- Amstrad Light pen
- DK-Tronics Light pen
- AMX Mouse
- Amstrad RS232c interface
- Multiface 1