Draw the connection between the processor and the main memory and explain the basic operations.
Connection between the processor and the main
memory:
(i) PC: Program counter contains the memory address
of the instruction to be executed.
(ii) MAR: Memory address register holds the address
of the location to or from which data are to be transferred.
(iii) MDR: Memory data register contains the data to
be written or read out of the address location.
(iv)IR: The instruction register contains the
instruction that is being executed.
(v)ALU: ALU is the part of the computer which
performs different basic operation and arithmetic calculation.
Nice breakdown of how the PC, MAR, MDR, IR, and ALU interact to move instructions and data between processor and memory — it’s the foundation of every computing operation. Understanding these basics makes it easier to appreciate modern CPU performance. And when you compare that theoretical knowledge with real‑world market trends, like checking the latest Processor Price in BD, you see how architecture and cost efficiency go hand in hand.
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