The Amstrad PCW was not related to their CPC range of the same era and was in fact not even a full computer. It was sold as an Office computer, or word processor, and was really a cut-down PC with a custom OS that restricted it to mainly office related tasks. I always thought it a bit pointless and a waste of money back at the time, and completely pointless these days.

The actual computer was built into the monitor as an all in one system, with a separate keyboard and printer bundled with it. Most of the models used the Amstrad specific 3" floppy disks also used by later Spectrums and CPCs. And the software included Locoscript word processing program, the CP/M Plus operating system, Mallard BASIC and the LOGO programming language. CP/M was a fairly good OS at the time, and was also used on the CPC6128, but it was more restrictive on the PCW.

Whether you should grab this one for sale for £10 is up to you, but personally I think its more a museum piece than something you will really find any use for. Maybe something interesting for a computer club meeting, and for you to have a brief play around with, but ultimately it will end up as a very large paperweight collecting dust.

Also consider this came out the same year as the Amiga, and you can see how primitive and out of date it was even when new.