10 Questions
What is the primary function of the Program Counter (PC) register in the FDE cycle?
To display the address in RAM of the next instruction to be processed.
Which register stores the result of mathematical or logical calculations in the CPU?
The Accumulator (ACC) register
What is the purpose of the Memory Address Register (MAR) in the FDE cycle?
To store the address of the next instruction to be fetched from RAM
What happens to the instruction in the Memory Data Register (MDR) after it is transferred from RAM?
It is copied into the Current Instruction Register (CIR)
What is the primary objective of the decode stage in the FDE cycle?
To understand the instruction retrieved from RAM
Which register tracks the RAM address of the instruction that is to be fetched?
The Memory Address Register (MAR)
What is the role of the CPU in the FDE cycle?
To process data and instructions for each program or service that requires its attention
What happens to the instruction in the Current Instruction Register (CIR) after it is decoded?
It is executed (processed) by the CPU
What is the primary function of the Fetch stage in the FDE cycle?
To retrieve the instruction from RAM
What is the purpose of registers in the CPU?
To provide small storage spaces for temporary data
Test your knowledge on the Fetch - Decode - Execute cycle performed by the CPU and the essential registers involved in this process. Learn about the CPU's data processing mechanism and the role of each register.
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