Hardware Basic Multiple Choice Question MCQ
Categories: MCQS
1. Which of the following register holds a data value that is being stored to or retrieved from the memory location? (a) PSW (b) Main memory (c) Memory data register (d) Cache register Answer: (c) 2. A device that allows entering data and instruction into a computer system is called (a) interaction (b) terminal (c) communication (d) input Answer: (d) 3. Computer gets the input with the help of (a) mouse and keyboard (b) joystick (c) printer (d) both a and b Answer: (d) 4. Which of the following are not input devices? (a) Keyboard, trackball, light pen (b) Barcode reader, OMR, OCR, MICR (c) Biometric sensor, scanner, Mic (d) Plotter, projector, headphones Answer: (d) 5. Which device is mostly used to enter data or information in a computer system? (a) Touch screen (b) mouse (c) light pen (d) keyboard Answer: (d) 6. Which of the following are examples of pointing devices? (a) Mouse, trackball (b) joystick, light pen (c) touch screen (d) All Answer: (d) 7. Which of the following is not a type of mouse? (a) Wireless mouse (b) Optical mouse (c) Mechanical mouse (d) Electromechanical mouse Answer: (d) 8. Which of the keys are also known as modifier keys? (a) Shift (b) Ctrl (c) Alt (d) All the above Answer: (d) 9. Which keys are also known as toggle keys? (a) Caps lock, Num lock (b) Control key, Enter key (c) Shift, Esc (d) Both a and b Answer: (a) 10. Which key is used to indent a paragraph? (a) Spacebar (b) Tab (c) Shift (d) None Answer: (b) 11. Which key is used to open the Start menu? (a) Windows (b) Alt (c) Ctrl + Alt (d) None of these Answer: (a) 12. Which key is used to erase data from the computer’s memory and characters on the screen? (a) Backspace (b) Delete (c) Shift + Alt (d) Both a and b Answer: (b) 13. The first computer architecture was designed in (a) 1970 (b) 1985 (c) 1968 (d) 1975 Answer: (a) 14. Which bus is used to connect external devices? (a) Address (b) Data (c) Control (d) External Answer: (d) 15. Which of the following is not an integral part of the computer system? (a) CPU (b) Mouse (c) Monitor (d) UPS Answer: (d) 16. Which of the following device provides surge protection and battery backup power during a power outage? (a) Battery strip (b) Surge strip (c) UPS (d) USB Answer: (c) 17. Which of the following is a temporary storage location attached to CPU for input and output operations? (a) Memory chip (b) Register (c) Buffer (d) Core Answer: (c) 18. Which of the following is used to measure the speed of the CPU (processor)? (a) Processing speed (b) Unit (c) Coprocessor (d) Clock speed Answer: (d) 19. A uniform interval of CPU time allocated for performing a task is called (a) real time (b) seek time (c) time slice (d) unit time Answer: (c) 20. What is the full form of DMA? (a) Direct memory access (b) Dynamic memory access (c) Double memory access (d) None of these Answer: (a)