REGISTERS AND RAM

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 1.    Why are registers used instead of RAM?

=>    Because registers are very fast computer memory which is used to execute programs and operations efficiently.

STRUCTURE AND COMPONENTS OF ALL REGISTERS

1. Accumulator => Stores the value from the MDR register

2. Memory Address Register => It holds the address of the location which is to be accessed from the memory

3. Memory Data Register => It holds the data to be written into the memory of to be read out from the addressed location

MAR and MDR facilitate the communication between CPU and RAM

4.General-Purpose Register => Used to store temporary data during ongoing operation

5. Program Counter => used to keep track of the execution of the program

6. Instruction Register => Holds the instruction which is to be executed currently.

7. Condition code register => It has many flags that indicate the current status of any operation.

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