Arizona CR-39 HVAC Contractor Practice Exam

Which component of the CPU acts as the temporary storage for the results of calculations?

Program Counter (PC) Memory Address Register (MAR) Accumulator (ACC) Instruction Register (IR)

Correct Answer:

Accumulator (ACC)

Explanation:

The Accumulator is a special-purpose register within the Arithmetic Logic Unit (ALU) that holds the data currently being processed and the results of calculations.

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