COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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MDR
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AC
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PC
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CIR
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Detailed explanation-1: -An accumulator is a type of register for short-term, intermediate storage of arithmetic and logic data in a computer’s central processing unit (CPU).
Detailed explanation-2: -Accumulator. In a computer’s central processing unit (CPU), the accumulator (ACC in the image below) is a register in which intermediate arithmetic and logic results are stored.
Detailed explanation-3: -Detailed Solution. Option 2 is the correct answer: Accumulator (ACC) stores the results of arithmetic and logical operations.
Detailed explanation-4: -The Accumulator (AC) register is a general purpose processing register. The instruction read from memory is placed in the Instruction register (IR). The Temporary Register (TR) is used for holding the temporary data during the processing. The Input Registers (IR) holds the input characters given by the user.
Detailed explanation-5: -Registers such as PC, IR, AC, MAR and MDR are built using D flip-flops for data storage. One or more arithmetic logic units (ALUs) are also contained inside the CPU. The ALU is used to perform arithmetic and logical operations on data values.