
Computer interfacing
(Random Access Memory, more usefully thought of as
Read And write Memory). Most computers will have pro-
grams stored in both types of memory, those in ROM
either being written to allow the computer to perform a
variety of mundane functions such as reading the key-
board, writing to screen, or providing specific functions,
such as running a high level language (BASIC, Pascal, and
so on) or facilities such as word-processing. Programs
in RAM are those entered by the user, usually from an
external storage device such as a disk drive, although it
is possible to enter short programs into RAM directly
through the keyboard. Th