How Processors work

the result of a previous operation, which determines whether the branch is to be taken or not. The instructions tested for conditional branching are stored in special memory locations called flags.
 
 

Clock Pulses

The clock pulses are the very basis of data transfer in a computer system. Data travels around in the computer in form of such electronic pulses.  These repetitive clock pulses generated by a clock circuit drive the Central Processing Unit. The CPU accomplishes its smallest possible task between sequential clock cycles. So, the bigger the task, the more the number of cycles taken to complete.  The maximum number of clock pulses at which the processor can work determines the speed of the computer. The unit of measurement of clock frequencies is Hertz, which is equal to the number of clock cycles per second. Till a while ago Mega-hertz (MHz) used to be the standard unit of measurement but nowadays computer speeds have increased to Giga-hertz. One Giga-hertz is equal to 1000 MHz.

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