Glossary Of Terms - AMSTRAD CPC464 User Manual

GLOSSARY OF TERMS

Some commonly used terms from the world of computing, explained for
CPC464 users .....
Accumulator
A memory location within the microprocessor circuit at the heart of the microcomputer that stores
data temporarily while it is being processed. Used extensively in machine code programming -
BASIC users need never know it exists !
Acoustic coupler
Also known as an Acoustic Modem. An electronic attachment for a computer that connects a
telephone handset to the computer and enables the latter to communicate over the normal voice
telephone network. In this way, a computer can communicate with public information systems such
as PRESTEL, other users of home computers etc., to exchange software, get data and information
etc.
Address
The number in an instruction that identifies the location of a 'cell' in a computer's memory. By
means of its address, a particular memory location can be selected so that its contents can be found
and 'read', in the case of RAM, both read and written back after alteration.
Adventure game
A cult with some, and a bore to others. A text-based computer game in which the user playing is
invited to participate in a series of pseudo random events based on trying to find a way around a
maze or labyrinth.
Algorithm
A grandiose name for a complicated formula or sum. A sequence of logical and arithmetical steps to
perform a defined task in computing.
Alphanumeric
The attribute that describes the difference between a letter or number and a graphics character.
ALU
Arithmetic Logic Unit. The part of a microprocessor that carries out arithmetical and logical
operations - not of direct concern except in machine code programming.
AMSOFT
AMSTRAD's specialist computer support division, supplying software, peripherals, publications
specifically to enhance the CPC464 and its many applications.