What Is A Data Register

next → ← prev

Computer Registers

Registers are a blazon of computer retention used to rapidly accept, store, and transfer data and instructions that are existence used immediately by the CPU. The registers used past the CPU are oft termed every bit Processor registers.

A processor register may hold an instruction, a storage address, or whatsoever data (such every bit flake sequence or individual characters).

The computer needs processor registers for manipulating information and a register for holding a retentivity address. The register holding the memory location is used to summate the address of the next instruction after the execution of the current instruction is completed.

Following is the list of some of the most common registers used in a basic computer:

Register	Symbol	Number of $.25	Function
Data register	DR	16	Holds memory operand
Address annals	AR	12	Holds accost for the retentivity
Accumulator	AC	16	Processor annals
Instruction register	IR	16	Holds education code
Program counter	PC	12	Holds address of the pedagogy
Temporary register	TR	16	Holds temporary data
Input register	INPR	8	Carries input grapheme
Output register	OUTR	8	Carries output character

The following image shows the register and memory configuration for a basic estimator.

The Memory unit has a capacity of 4096 words, and each word contains 16 bits.
The Data Register (DR) contains 16 bits which hold the operand read from the memory location.
The Memory Address Register (MAR) contains 12 bits which concord the address for the memory location.
The Programme Counter (PC) too contains 12 bits which hold the address of the next educational activity to be read from memory subsequently the current instruction is executed.
The Accumulator (Air conditioning) register is a general purpose processing register.
The instruction read from memory is placed in the Pedagogy register (IR).
The Temporary Annals (TR) is used for property the temporary information during the processing.
The Input Registers (IR) holds the input characters given by the user.
The Output Registers (OR) holds the output after processing the input information.

Next Topic COA Tutorial

← prev next →

For Videos Join Our Youtube Channel: Join Now