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Registers...

Posted Date: 16 May 2008 Resource Type: Articles/Knowledge Sharing Category: Computer & Technology

Posted By: Saranya Member Level: Gold
Rating:

Points: 1

Registers are very high speed memory units in the CPU...
Program Counter (PC) – Points to the address of the next instruction to be executed
Instruction Register (IR) – Holds the instruction currently being executed
Memory Address Register (MAR) – Holds the address for either the instruction or the data required for the instruction
Memory Buffer Register (MBR) – Holds the contents of the location that has been read or that is to be written in
Accumulator (A) – A Processor register which serves as both the input and output for lots of operations. It basically stores the intermediate results of most of the operations.

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