User's Manual

MS-DOS
An operating system from Microsoft. See DOS, Operating system.
Operating system
A collection of programs that allow a computer to control its opera-
tions. The operating system determines how programs run on the
computer and supervises all input and output-for example,
MS-DOS.
Option card
A card you install inside the Equity III main unit to provide addi-
tional capabilities, such as more memory, a hard disk drive, or a
mouse.
Parallel
The type of interface which transmits data in groups of bits. See
Interface, Serial.
Partition
To divide a hard disk drive into separate sections for use by different
operating systems.
Peripheral
A device (such as a printer or a modem) connected to a computer
that depends on the computer for its operation.
Port
A physical input/output socket on a computer where you can con-
nect a peripheral.
Program
A disk file that contains coded instructions and tells a computer what
to do and how to do it.
PROM
Programmable Read-Only Memory. A PROM is a ROM that can be
altered.
Random Accesss Memory. The part of memory that a computer can
both read and write to. The programs you use are temporarily stored
in RAM. All data stored in RAM is erased when you turn off the
power.
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