User`s guide

Operating speed
The speed at which the computer’s processor can execute
commands, usually expressed in megahertz (MHz), such as
66 MHz.
Operating system
A collection of programs that manages a computer’s
operations, such as interpreting input, managing files, and
reading and writing data to disk. The operating system (such as
MS-DOS, OS/2, or UNIX) provides the foundation for the other
programs you use and controls the usage of the hardware
resources.
OS/2
Operating System /2. The enhanced operating system
developed jointly by Microsoft and IBM that provides
protected mode processing and multitasking capabilities. See
also DOS, MS-DOS, and Operating system.
Parity
A method used to verify the accuracy of data transmissions by
making the total of the number of l’s in a group of bits odd
(odd parity), even (even parity), or none (no parity).
Partition
(1) The area an operating system defines on a hard disk so you
can use that area as though it were a physically separate device;
(2) to divide a hard disk into separate logical areas. You can
create a primary partition and one or more extended partitions
on a hard disk.
10 Glossary