The Central Processing unit

The central processing unit (CPU)is the part of the computer that processes and calculates data. You can think of the CPU as the ''brain'' of the computer.

• The CPU is an advance microprocessor. A microprocessor perform calculations on data and determins what to do with the result of those calculations.
• The CPU is sent instructions by the computer's software. The CPU processes many millions of instructions per second and passes the resultto other components of the computer. The speed at which the CPU works is the main factor influencing the performance of the computer.
• To process an instructions, the CPU retrives data from storage . Data that is required urgently by the CPU is usually store in memory storage. Data that need to be retained when the computer is switched off is held in disk storage. When the CPU has complete the instructions, the data is written back to storage and the CPU moves on the next instructions. Following on some instructions, The CPU update other componnents.