Parallel Interface - AMSTRAD CPC464 User Manual

output
1
Anything that comes fl-om a computer as the result of some computational function.
Operator
The part of arithmetical expression that causes one number to operate on another -ie. + -
+etc..
Overwrite
Erase an area of memory by replacing its contents with new data.
Paddle
An alternative name for a joystick. Also referred to as a'games paddle'.
Paperware
Another description. for the printed 'hardeopy' of computing. Occasionally computers
launched before they have actually finished development are described as a'paperware
exercise'.

Parallel interface

The CPC464 printer interface supports a parallel printer: which means that each data line
from the bus is connected to a corresponding input on the printer. Data is transfered more
quickly using a parallel interface than a serial interface since the serial interface must first
format each byte, and ftame it with synchronisation information.
Pascal
A high-level structured programming language that must be compiled before it will execute -
and therefore runs very quickly. Generally the next language that the keen BASIC student
will pursue.
PEEK .
The BASIC function that looks directly into the computer's memory, and reports the value of
the specified location.
Peripheral
Printers, modems, joysticks, disk drives - anything that plugs into the computer to expand its
capabilities.
Pixel
The smallest accessible area of the screen that can be controlled by the hardware.
Plotter
A specific type of printer that draws 'longhand'using pens rather than an impact print head.
Used for technical and graphical drawing output.