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Write short notes on general purpose registers (AX,BX,CX,DX,SP,BP,SI,DI) and ALU in Intel 8086 microprocessor


General Purpose Registers

In computer architecture, registers in processors are quickly accessible locations available to a computer’s central processing unit (CPU). Registers usually consist of a small amount of fast storage, although some registers have specific hardware functions, and may be read-only or write-only. Registers are normally measured by the number of bits they can hold, for example, an “8-bit register”, “32-bit register” or a “64-bit register” (or even with more bits).

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