AMSTRAD CPC464 User Manual page 202

Cartridge
A specially packaged memory integrated circuit containing software which can be plugged directly into a
socket specifically provided for the purpose on the computer. Cartridge software loads and runs more
quickly and easily, but costs considerably more than software supplied on cassette.
Cassette
Apart from the obvious recording tape variety, a generic term that encompasses a variety of
'packages'-including ROM software etc.
Character
Any symbol that can be represented in a computer and displayed by it, including letters, numbers and
graphics symbols. (See Appendix 11)
Character cell
The matrix of dots on a display screen used to represent a single character may be displayed by selective
illumination of some of the dots. (See Appendix 11)
Character set
All the letters, numbers and symbols available on a computer or printer. The fact that a character exists on
a computer does not imply it is accessible on any printer.
Character string
A piece of <variable> data comprising a sequence of characters that can be stored or manipulated as a
single unit, e.g. a word or a collection of words.
Chip
An misleading but popular reference to any form of monolithic electronic integrated circuit. The 'chip' is
actually a small slice of specially processed silicon material, on which the circuit is fabricated.
Clock
The reference timing system in the computer used to synchronise and schedule the operations of the
computer. A real time clock is one that maintains the hour, date etc.
Code
Apart from the more literal implications, frequently used by programmers as an abbreviation of 'machine
code'.
Command
A programming instruction.