The novelty of using a microcomputer just for games and screen-based programs soon wears off. How
nice it would be, you think to yourself, to use a micro to do something useful.
But, the most useful things involve using a micro to "listen in" to the outside world and, as a result, to take
suitable actions. That's when you need to add extra hardware to your 464, 664 or 6128 and you have to
know how to control it all
So, this book starts with an easy to learn but in depth approach to understanding how your Amstrad
computer works and the Z80 processor inside it. You'll quickly learn where the important pieces of
hardware are located - the RAM, ROM, sound chip, VDU controller and the other special Amstrad chips.
With this knowledge you'll be in full control of all the "on-board" hardware, and ready to move on to the
next part of the book.
This is where the fun starts. You'll use your knowledge of the Amstrad plus some inexpensive components
in exciting projects that include:
• An external keyboard.
• A 4-Channel RS232 Interface.
• An expansion ROM board.
• A speech synthesiser.
Advanced projects for the more adventurous includes:
• A complete EPROM programmer.
• A local area network for your office, factory or school.
Worried about your electronics knowledge? There's no need - not only are all the necessary concepts
introduced, but readers can obtain ready made printed circuit boards and complete kits of parts exclusively
from HALSTEAD DESIGNS (See page iii).
About the Author
Alan Trevennor is a Field Service Engineer with Systime Computers PLC. He has already written a
successful Sigma book "Operating Systems - a user friendly guide".
ISBN 1-85058-040-5 / ISBN 1850580405
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