Computer Organization and Architecture Quiz

What is the primary function of the Program Counter (PC)?

• To manage memory addresses

• To hold the results of arithmetic operations

• To keep track of the next instruction to be fetched

• To store the current instruction being executed

Which of the following is NOT a phase in executing an instruction?

• Execute phase

• Store phase

• Decode phase

• Fetch phase

What does ALU stand for?

• Arithmetic Load Unit

• Advanced Logic Unit

• Analog Logic Unit

• Arithmetic Logic Unit

In a single bus organization, what is the role of the Memory Data Register (MDR)?

• To store data to be written into or read from memory

• To hold the address of the next instruction

• To keep track of the execution state

• To manage control signals

What is pipelining in the context of computer architecture?

• A method to increase memory size

• A technique to execute multiple instructions simultaneously

• A way to reduce the number of registers

• A process to enhance data transfer speed

Which type of control unit generates control signals as a micro program?

• Hardwired control

• Microprogrammed control

• Dynamic control

• Sequential control

What is a structural hazard?

• An error in instruction execution

• A problem with memory access

• A delay caused by data dependencies

• A conflict due to resource limitations

What is the purpose of the Instruction Register (IR)?

• To manage data transfers

• To hold the address of the next instruction

• To store the currently executing instruction

• To control the ALU operations

Which of the following is a benefit of using cache memory in pipelining?

• Improves the speed of the ALU

• Reduces the access time for frequently used data

• Eliminates the need for registers

• Increases the size of the main memory

What is the main disadvantage of complex addressing modes in pipelined processors?

• They slow down the ALU operations

• They can cause pipeline stalls

• They are difficult to implement

• They require more memory space