What is the function of computer clock?

COMPUTER CLOCK

The computer clock is an electronic circuit that generates pulses at a rapid pace. It generates millions of pulses in one second. The pulses are reported as millions of cycles per second or Mega Hertz (MHz). The rate of generation of pulses is called the clock speed. Each pulse of the computer clock carries out one event inside the computer. Usually 1 to 6 clock pulses are required to perform one instruction. Clock speed in modem microcomputers generally varies from 100MHz to 1000 MHz. Because of this high clock speed the computer can execute millions of instruction in one second.