How computer clock effects the speed of system?
In a computer, clock speed refers to the number of pulses per second generated by an oscillator that sets the tempo for the processor. Clock speed is usually measured in MHz (megahertz, or millions of pulses per second) or GHz (gigahertz, or billions of pulses per second). Today’s personal computers run at a clock speed in the hundreds of megahertz and some exceed one gigahertz. The clock speed is determined by a quartz-crystal circuit, similar to those used in radio communications equipment.
The system clock is a small chip that the control unit relies on to synchronize computer operations. The faster the clock, the more instructions the CPU can execute per second. The speed at which a processor executes instructions is called clock speed. Clock speed is measured in megahertz (MHz), which equates to one million ticks of the system clock.