Understanding the Fetch-Decode-Execute Cycle

What are the two critical components identified when the lid of a typical desktop computer is removed?

• The power supply and the motherboard

• The cooling fan and the sound card

• The memory and the central processing unit

• The hard drive and the graphics card

During the fetch stage, what is the first action taken by the CPU?

• The instruction is decoded

• The program counter is checked

• The control unit sends a read signal

• The data is copied to the accumulator

What is the role of the memory address register during the fetch stage?

• To store the current instruction

• To hold the address of the next instruction

• To execute the instruction

• To send the address to the main memory

What are the two parts of an instruction in the decode stage?

• Address and data

• Opcode and operand

• Signal and bus

• Register and counter

What does the operand in an instruction specify?

• The data or address to be used

• The control signal to be sent

• The operation to be performed

• The address of the next instruction

In the execute stage, where is the data finally transferred to?

• The control unit

• The accumulator

• The program counter

• The memory address register

What signal does the control unit send during the execute stage to read data from memory?

• Write signal

• Fetch signal

• Decode signal

• Read signal

What is the purpose of the fetch-decode-execute cycle?

• To manage power supply

• To process instructions continuously

• To store data in the CPU

• To control the cooling system

How often does the fetch-decode-execute cycle occur in a CPU?

• Once per minute

• Billions of times per second

• Thousands of times per second

• Once per second

What is the final step in the fetch-decode-execute cycle?

• Incrementing the program counter

• Decoding the instruction

• Fetching the next instruction

• Executing the instruction