What is CPU ?
CPU of computer is also know as central processing unit of a computer.As the represent its name it is used in computer for processing data,do calculations, retrieve stored data and many other complex functions.CPU is and electronical part of a computer. A CPU is the combination of many microprocessors. Microprocessors are the very small size electronic circuits.
Basic Working of CPU
CPU is the brain of any computer.For understand Central processing unit,suppose computer user use the computer for doing calculation like 5+5.when user give the input 5+5 from keyboard (or any other input device).This input device send the data to the processor or CPU for processing.Processor translate this data in machine language or binary language,process the data and find the result (5+5=10).And use RAM,graphic card to display the result on screen.
CPU Internal Parts
A Central Processing Unit works with using its internal parts.It has some basic internal parts that control and run all operations.
- Control Unit
- The Arithmetic/Logic Unit
- Temporary Storage Areas
- Memory and Storage
The control unit is a first part or component of central processing unit to handle all operations or data processing activities. Control unit tells or control the computer’s memory, arithmetic unit/logic unit and input and output devices to how to respond for program instructions.
when data send to the Central processing unit by any input device as described in above example, in the form of electronic signals,it convert the data to binary.The Arithmetic unit of the cpu process the data by using the arithmetic operators.
After process the data by the arithmetic or logic unit,it forward to store in temporary storage of cpu.After that processed data send to the next part memory or storage of cpu.And the data forwarded to Control unit for next step what to do, if it is display on screen or store in memory of hard disk.