All Free Computer Science and IT MCQs with Answers

101. Which of the following are typical of virtual office?

• A. Desktop Invoicing
• B. Internet searching
• C. Traveling cordination
• D. All of these

Explanation: A virtual office can support administrative work such as invoicing, online research and coordinating travel without requiring a conventional shared office. Therefore, all three listed activities fit.

102. In MICR, C stands for_______?

• A. Code
• B. Color
• C. Character
• D. Computer

Explanation: MICR means Magnetic Ink Character Recognition, so C stands for Character. It refers to the machine-readable characters printed with magnetic ink on cheques and similar documents.

103. With a __________, users interact with menus and visual images such as icons, buttons, and other objects to issue commands?

• A. Command-Line Interface
• B. Menu-Driven Interface
• C. Graphical User Interface
• D. Performance-Moniter Interface

Explanation: A Graphical User Interface lets users issue commands through visual elements such as icons, buttons and menus. A command-line interface instead relies primarily on typed commands.

104. Which generation computers used transistors for the first time?

• A. Fourth
• B. Third
• C. Second
• D. First

Explanation: Transistors replaced vacuum tubes in second-generation computers, making them smaller, more reliable and less power-hungry. Integrated circuits were introduced later in the third generation.

105. You can delete text by___________?

• A. selecting the text and pressing the CTRL key
• B. selecting the text and pressing the DELETE key
• C. selecting the text and pressing the ALT+PAGEUP keys
• D. selecting the text and pressing the EXT key

Explanation: Selecting text and pressing Delete removes the selected characters. Ctrl and Alt are modifier keys, while the listed “EXT” key is not a standard keyboard key.

106. Who is the founder of audio and video conferencing tool Zoom?

• A. Steve Woznaik
• B. Steve Ericson
• C. Michele George
• D. Eric Yuan

Explanation: Eric Yuan founded Zoom in 2011 after working in video-conferencing technology. The other names are not the founder of Zoom.

107. ___________is the process of dividing the disk into tracks and sectors?

• A. Tracking
• B. Formatting
• C. Crashing
• D. Allotting

Explanation: Formatting prepares a disk for use by organizing its surface into tracks and sectors. Tracking and allotting are not disk-preparation terms.

108. Ctrl, Shift and Alt are called_______keys.

• A. Alphanumeric
• B. Function
• C. modifier
• D. None of These

Explanation: Ctrl, Shift, and Alt modify the action of another key, so they are called modifier keys. They are not alphanumeric or function keys.

109. Arrangement of keys on keyboard is called__________?

• A. Home arrangement
• B. Qwerty arrangement
• C. Basic arrangement
• D. General arrangement

Explanation: The common QWERTY arrangement is named after the first six letters on the top alphabetic row of the keyboard. The other choices are not standard keyboard-layout names.

110. A hard disk is divided into tracks which are further subdivided into___________?

• A. Sectors
• B. Clustors
• C. Vectors
• D. None of these

Explanation: A hard disk surface is organized into tracks, and each track is divided into sectors for storing fixed blocks of data. Clusters are groups of sectors allocated by a file system.