Free Hardware and Software MCQs with Answers
161 Hardware and Software MCQs from Computer Science and IT, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
161 questions · page 1 of 17
1. Which organization has launched the quantum processor 'Willow'?
- A. Google
- B. Yahoo
- C. Amazon
- D. Microsoft
Explanation: Willow is Google's quantum processor, announced by Google Quantum AI in 2024. Yahoo, Amazon, and Microsoft have quantum-computing initiatives, but they did not launch the processor named Willow.
Correct answer: Google2. The______________is the amount of data that a storage device can move from the storage medium to the Computer per second?
- A. data migration rate
- B. data digitizing rate
- C. data transfer rate
- D. data access rate
Explanation: Data transfer rate measures how much data a storage device can move between the storage medium and the computer per second. Access rate instead concerns how quickly data can be located or reached.
Correct answer: data transfer rate3. Which is a volatile memory ?
- A. ROM
- B. RAM
- C. BIOS
- D. PROM
Explanation: RAM is volatile because its contents disappear when electrical power is removed. ROM, PROM, and the firmware stored in BIOS are non-volatile.
Correct answer: RAM4. The term___________designates equipment that might be added to a computer system to enhance its functionality.
- A. digital device
- B. system add-on
- C. disk pack
- D. peripheral device
Explanation: A peripheral device is hardware added to a computer to provide or enhance functions such as input, output, storage, or communication. A system add-on is not the standard general term.
Correct answer: peripheral device5. Latest MS Windows is__________?
- A. Windows 8
- B. Windows 10
- C. Windows 11
- D. Windows 7Word Processing Software
Explanation: Windows 11 is the latest major desktop version of Microsoft Windows. Windows 8, 10 and 7 are earlier releases.
Correct answer: Windows 116. 'Notification area' is available in which Desktop's function?
- A. Windows Button
- B. Taskbar
- C. Title bar
- D. None of These
Explanation: The notification area is the system-tray section of the taskbar, normally located near the clock. It displays status icons and notifications.
Correct answer: Taskbar7. Windows+M is used for: ________?
- A. Minimize file/folder
- B. Maximize file/folder
- C. Zoom file/folder
- D. All of these
Explanation: Windows+M minimizes all open windows to show the desktop; it does not maximize or zoom files. The wording says file/folder, but option a is the closest intended choice.
Correct answer: Minimize file/folder8. CD-ROM stands for____________?
- A. Compactable Read Only Memory
- B. Compact Data Read Only Memory
- C. Compactable Disk Read Only Memory
- D. Compact Disk Read Only Memory
Explanation: CD-ROM means Compact Disc Read-Only Memory, an optical medium whose stored data is normally not writable. Option d uses the common but technically less precise spelling Disk.
Correct answer: Compact Disk Read Only Memory9. Which of the following are components of Central Processing Unit (CPU) ?
- A. Arithmetic logic unit, Mouse
- B. Arithmetic logic unit, Control unit
- C. Arithmetic logic unit, Integrated Circuits
- D. Control Unit, Monitor
Explanation: The CPU contains the Arithmetic Logic Unit, which performs calculations and comparisons, and the Control Unit, which directs instruction execution. A mouse and monitor are peripheral devices, not CPU components.
Correct answer: Arithmetic logic unit, Control unit10. Which technology is used in compact disks?
- A. Mechanical
- B. Electrical
- C. Electro Magnetic
- D. Laser
Explanation: Compact discs store and read data using a laser beam that detects microscopic pits and lands on the disc surface. Mechanical and ordinary electrical technologies do not perform this optical reading process.
Correct answer: Laser