Free Hardware and Software MCQs with Answers

61. What is windows registry?

• A. Windows register to store clipboard
• B. The Windows Registry is a hierarchical database that stores low-level settings for OS
• C. Microsoft program to enable or disable a particular function
• D. An application to edit the system configuration

Explanation: The Windows Registry is a hierarchical database containing operating-system and application configuration settings. It is not merely a clipboard store or an ordinary configuration-editing application.

62. What is the capacity of a two sided DVD?

• A. 8.8 GB
• B. 9.2 GB
• C. 10 GB
• D. 9.4 GB

Explanation: A standard double-sided, single-layer DVD, known as DVD-10, stores about 9.4 GB. Higher-capacity double-sided dual-layer DVDs are a different format.

63. Macintosh, a personal computer was developed by________?

• A. Microsoft
• B. IBM
• C. Apple
• D. Dell

Explanation: The Macintosh personal computer was developed and marketed by Apple. Microsoft, IBM, and Dell produced other computer products but did not develop the Macintosh.

64. Communication between a computer and a keyboard involves ______________ transmission.

• A. Automatic
• B. Half-duplex
• C. Full-duplex
• D. Simplex

Explanation: A keyboard sends input signals to the computer, while the computer does not normally send data back through that communication channel. This one-way transmission is simplex.

65. Vendor-created program modifications are called ________ ?

• A. patches
• B. fixes
• C. antiviruses
• D. holes

Explanation: Patches are updates or modifications supplied by a software vendor to correct errors, improve security or add minor changes. Fixes is a general term, while holes are vulnerabilities rather than modifications.

66. When was MS Windows operating system introduced?

• A. 1975
• B. 1985
• C. 1990
• D. 2000Windows OS

Explanation: The first retail version of Microsoft Windows, Windows 1.0, was released in 1985. Later years refer to subsequent Windows versions, not its introduction.

67. The keys on the top of keyboard as F1, F2.........F12 are called_________?

• A. Enter keys
• B. Lock keys
• C. Insert keys
• D. Function keys

Explanation: F1 through F12 are called function keys because they perform commands assigned by the operating system or application. Lock keys include Caps Lock and Num Lock.

68. Keyboard used with personal Computer have___________keys?

• A. 84 to 85 keys
• B. 101 to 105 keys
• C. both a & b
• D. none of these

Explanation: Most modern personal-computer keyboards follow the 101-to-105-key layout, depending on the platform and extra keys included. The 84-to-85-key range refers mainly to older keyboard designs.

69. The________is firmware that contain a computer's startup instruction.

• A. POST
• B. BIOS
• C. CMOS
• D. DIOS

Explanation: BIOS is firmware stored on the motherboard that performs initial hardware checks and provides the instructions needed to start the computer. POST is the check it performs, while CMOS traditionally stores configuration settings.

70. Which key is between the Ctrl and Alt keys?

• A. Shift
• B. Enter
• C. Window
• D. Space bar

Explanation: The Windows key is normally positioned between the left Ctrl and Alt keys and opens the Start menu or supports Windows keyboard shortcuts. Enter and Shift are elsewhere, while the space bar is below them.