Qwerty Keyboard - AMSTRAD CPC464 User Manual

POKE
The statement in BASIC that is used to place a value in a specified memory location - see chapter
8.
Port
A specifically addressable point on the interface for input or output of data.
Portability
Other than the literal use, means the ability for software to operate on different makes of
computer - usually as a result of a compatible operating system, such as the Digital Research
CP/M
Primer
A set of elementary instructions and guidelines to introduce the user to specific aspects of
computing.
Printer
Any hardcopy method for printing out text.
Program
Spelt 'program' not 'programme' in computing. The combination of instructions that cause the
computer to execute a task, and can be anything from a simple machine code 'routine'to a
complete applications program, such as a wordprocessor.
Programming language
The medium through which the program is written, being comprised of rigid rules on the use of
words, numbers and the sequence in which they are implemented.
PROM
Programmable Read Only Memory. An integrated memory circuit that once written with data,
cannot be erased. (Also see EPROM)
Prompt
A symbol or message displayed on the screen that invites the user to respond with an answer or
further'input'. Basic uses a simple question mark ? when requiring input, or the word R e a d y
when waiting for a command to be entered.
PSU
Power Supply Unit. The means of converting the domestic mains electricity supply into the
necessary voltages to operate the computer (and peripheral devices).

QWERTY keyboard

The colloquial term to describe a keyboard with the conventional typewriter key layout.