Free Computer Fundamentals MCQs with Answers

101. 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.

102. 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.

103. 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.

104. ___________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.

105. 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.

106. 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.

107. 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.

108. 'mpg' is the extension of__________?

• A. Audio
• B. Image
• C. Video
• D. Flash

Explanation: The .mpg extension identifies an MPEG video file. Audio formats commonly use extensions such as .mp3 or .wav.

109. The smallest unit of data in a computer is__________?

• A. Bit
• B. Kilobit
• C. Terabyte
• D. Byte

Explanation: A bit is the smallest unit of digital data and can have a value of 0 or 1. A byte consists of eight bits, while kilobits and terabytes are much larger units.

110. Which basic colors are used in computer graphics?

• A. GOB
• B. RWG
• C. RGB
• D. BGB

Explanation: RGB means red, green, and blue, the primary additive colors used to produce colors on computer displays. The other combinations are not the standard color model for screen graphics.