Hardware Basic Multiple Choice Question MCQ
Categories: Hardware & Software
1. Any physical components of a computer system that we can see and touch is (a) Software (b) Peripheral device (c) hardware (d) CPU Answer: (c) 2. The system unit that contains the most vital part of the personal computer is called (a) CPU (b) BIOS chip (c) Motherboard (d) Monitor Answer: (c) 3. A motherboard consists of (a) CPU (b) RAM and BIOS chip (c) Expansion slots (d) Heat sink/fan (e) All of the above Answer: (e) 4. Which of the following is considered as the brain of the computer? (a) Motherboard (b) RAM (c) CPU (d) BIOS chip Answer: (c) 5. Which of the following is primarily responsible for converting input (data) into meaningful output (information)? (a) RAM (b) CPU (c) Storage device (d) Input and Output device Answer: (b) 6. Central Processing Unit in a computer consists of which major components? (a) Arithmetic logic unit (ALU) and Control Unit (b) Control Unit (CU) (c) Registers (d) ALU, Control Unit, and Registers Answer: (d) 7. Which of the following component of CPU performs arithmetic operations such as addition, subtraction, division, and multiplication and logic operations such as AND, OR, and NOT? (a) CU (b) ALU (c) Both a and b (d) Register Answer: (b) 8. Which of the following component of CPU controls input/output devices, generate control signals to the other components of the computer such as read and write signals, and performs the execution of instruction? (a) ALU (b) Accumulator (c) Control Unit (d) Both a and c Answer: (c) 9. Which among the following is the fastest memory in a computer that holds information? (a) Register (b) Cache (c) Main memory (d) RAM Answer: (a) 10. Which of the following is not hardware? (a) Processor chip (b) Printer (c) Mouse (d) Java Answer: (d) 11. Which of the following are the predominant manufacturers for desktop and laptop processors? (a) Intel (b) AMD (Advanced Micro Devices) (c) Motorola (d) Both a and b Answer: (d) 12. Which of the following is temporary storage used to hold data that is used for arithmetic and logical operations and storing its results? (a) ALU (b) PC (Program counter) (c) Accumulator (d) IR (Instruction Register) Answer: (c) 13. Which of the following is a permanent storage location within the CPU used to hold a binary value temporarily for manipulation, and/or for simple calculations? (a) Main memory (b) Secondary memory (c) Register (d) Both a and b Answer: (c) 14. Data moves in and out of the CPU through embedded wires called (a) Bus (b) Electronic wires (c) Lines (d) Cables Answer: (a) 15. The most common buses inside the microcomputer are (a) Address bus (b) Address bus and Data bus (c) Address bus and Control bus (d) Address bus, Data bus, and Control bus Answer: (d) 16. Which bus is used to carry data to and from the memory? (a) Address bus (b) Data bus (c) Control bus (d) None of these Answer: (b) 17. Which register holds the address of the current instruction being executed? (a) Instruction register (b) Memory data register (MDR) (c) Stack register (d) Program counter Answer: (d) 18. Which register holds the actual instruction being executed currently by the computer? (a) Memory address register (MIR) (b) Instruction register (IR) (c) Memory data register (MDR) (d) Program counter register Answer: (b) 19. Which register holds the address of a memory location? (a) Memory data register (b) Memory address register (c) Status register (d) Stack address Answer: (b) 20. Which register shows the results of arithmetic and logical operations such as carry, overflow, negative? (a) Stack register (b) Status register (c) Memory data register (d) Memory buffer Answer: (b)