A central processing unit, also called a central processor or main processor, is the electronic circuitry within a computer that executes instructions that make up a computer program.
The CPU is comprised of three main parts :
1. Arithmetic logical Unit(ALU):: Executes all arithmetic and logical operations.
Arithmetic calculations like as addition, subtraction, multiplication and division.
Logical operation like compare numbers, letters, or special characters.
2. Control Unit(CU):Conntrols and co-ordinates computer components.
1. Read the code for the next instruction to be executed.
2. Increment the program counter so it points to the next instruction.
3. Read whatever data the instruction requires from cells in memory.
4. Provide the necessary data to an ALU or register.
5. If the instruction requires an ALU or specialized hardware to complete, instruct
the hardware to perform the requested operation.
3.Registers :Stores the data that is to be executed next, "very fast storage area".
The CPU is comprised of three main parts :
1. Arithmetic logical Unit(ALU):: Executes all arithmetic and logical operations.
Arithmetic calculations like as addition, subtraction, multiplication and division.
Logical operation like compare numbers, letters, or special characters.
2. Control Unit(CU):Conntrols and co-ordinates computer components.
1. Read the code for the next instruction to be executed.
2. Increment the program counter so it points to the next instruction.
3. Read whatever data the instruction requires from cells in memory.
4. Provide the necessary data to an ALU or register.
5. If the instruction requires an ALU or specialized hardware to complete, instruct
the hardware to perform the requested operation.
3.Registers :Stores the data that is to be executed next, "very fast storage area".
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