Which of the following components are part of the central processing unit…
2023
Which of the following components are part of the central processing unit (CPU) in the Von Neumann model of a computer system?
A. Arithmetic Logic Unit (ALU)
B. Hard Disk Drive (HDD)
C. Memory Address Register (MAR)
D. Solid State Drive (SSD)
E. Control Unit (CU)
Choose the correct answer from the options given below.
Answer: D. A, C & E only — ConceptA stored-program computer separates processing roles from external storage. The CPU contains the arithmetic-logic unit, the control unit, and internal…
- A.
A & E only
- B.
B, C & D only
- C.
A & C only
- D.
A, C & E only
Attempted by 39 students.
Show answer & explanation
Correct answer: D
Concept
A stored-program computer separates processing roles from external storage. The CPU contains the arithmetic-logic unit, the control unit, and internal registers used during instruction execution. A memory-address register holds the address of the memory location currently being accessed.
Application
In the given list, A is the Arithmetic Logic Unit, C is the Memory Address Register, and E is the Control Unit. Those three belong to the CPU. B and D are secondary-storage devices, so the required set is A, C & E only.
Contrast
A & E only leaves out MAR, the CPU register that holds the address for a memory access.
B, C & D only mixes the CPU register MAR with the secondary-storage devices HDD and SSD.
A & C only leaves out the Control Unit, which directs instruction execution.
A, C & E only contains the arithmetic, address-register and control roles of the CPU.
Result
Therefore, the required set is A, C & E only.