| Forum Topic : Components of CPU | |
| Submitted by Tanvi on 23/06/2009 - 07:58 PM | |
| Two typical components of a CPU are the following : 1. The arithmetic logic unit (ALU), which performs arithmetic and logical operations. 2. The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary. Arithmetic Logic Unit : The part of a computer that performs all arithmetic computations, such as addition and multiplication, and all comparison operations. The ALU is one component of the CPU (central processing unit). Control Unit : It is a typical component of the CPU that implements the microprocessor instruction set. It extracts instructions from memory and decodes and executes them, and sends the necessary signals to the ALU to perform the operation needed. Control Units are either hardwired (instruction register is hardwired to rest of the microprocessor) or micro-programmed. |
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