Current personal computer processors have clocks The faster the clock speed, the more instructions
the processor can execute per second. The
speed of the system clock has no effect on devices
such as a printer or disk drive. The speed of the
system clock is just one factor that influences
a computer’s performance. Other factors, such
as the type of processor chip, amount of cache,
memory access time, bus width, and bus clock
speed, are discussed later in this chapter.peeds in the gigahertz range.