TWENTY-FIVE PIN SERIAL CONNECTOR A
UNSTRUCTURED DIRECTORY A disk with
serial connector that has twenty-five pins, usually
only one directory contained on it.
used for connecting a printer or monitor to the CPU.
VIRUS A computer program which can wreak havoc
UNIX An operating system that has many high-level
on a system, either by destroying data or simply
utility programs; it is capable of running a number
changing and slowing up the processing of the
of jobs at once.