determines how fast your PC will operate. This clock is not like a
conventional clock that tells the time, but a chip that keeps a beat. This
clock acts like the conductor of a symphony orchestra always keeping time. It
makes sure that everyone is doing the right thing at the right time.
The
clock speed
,or speed of the system clock, is measured in
megahertz
or MHz. Like miles per hour on a car, the higher the number, the faster the
speed. This speed can vary among different models of PCs. It can range from 4.77 MHz of the original
IBM PC to over 200 MHz of today's PCs.