The processor controls the entire computer system. This includes the operating system, application software, games, device peripherals, etc.
There are many types of processor (or CPU ) chips available in the market today. The most popular is the Pentium class chips from Intel Corporation. Each new chip is an enhancement on speed & performance over the previous chips.
The rate of speed at which a processor executes commands is measured by clock speed, often referred to as MHz (megahertz). The processor needs fixed number of clock cycles to perform each instruction. The faster the clock speed, the more number of instructions it can execute, thus resulting in a faster computer system.
