Free Computer Fundamentals MCQs with Answers

131. A number system that has eight different symbols to represent any quantity is known as.....?

• A. Binary
• B. Octal
• C. Decimal
• D. Hexadecimal

Explanation: Octal is a base-8 number system, so it uses eight symbols, 0 through 7. Binary uses two, decimal uses ten and hexadecimal uses sixteen symbols.

132. Multi user systems provided cost savings for small business because they use a single processing unit to link several_________?

• A. Personal Computer
• B. Workstations
• C. Dumb Terminals
• D. Mainframes

Explanation: A multi-user system uses one central processing unit to serve several dumb terminals, which mainly provide input and output and depend on the central computer for processing. Personal computers and workstations normally contain their own processing units.

133. COR Corel Draw is an example of___________?

• A. Vector graphics
• B. Raster graphics or bitmaps
• C. Color graphics
• D. Negative films

Explanation: CorelDRAW is primarily a vector-graphics application, creating images from mathematically defined lines, curves and shapes. Raster graphics instead represent images as a grid of pixels.

134. VAB stands for___________?

• A. voice auto broadcasting
• B. Visual & audio broadcasting
• C. Voice answer back
• D. None of these

Explanation: VAB commonly expands to Voice Answer Back, referring to a system that responds using voice. The remaining options do not represent the standard expansion.

135. Virus is the word of which language?

• A. English
• B. Latin
• C. Greek
• D. None of These

Explanation: Virus comes from Latin, where it referred to poison or a harmful substance. The computing term uses this idea because a computer virus spreads and causes unwanted effects.

136. Who invented the microprocessor ?

• A. Marcian E Hoff
• B. Herman H Goldstein
• C. Joseph Jacquard
• D. All of the above

Explanation: Marcian Edward Hoff, commonly known as Ted Hoff, helped invent the microprocessor while working at Intel. Herman Goldstine and Joseph Jacquard are associated with other areas of computing history.

137. who invented the difference engine and analytical engine?

• A. Vint cerf
• B. Mark zukerberg
• C. Charles Babbage
• D. None

Explanation: Charles Babbage designed both the Difference Engine and the Analytical Engine in the nineteenth century. These machines made him a foundational figure in the history of programmable computing.

138. Directory in a directory is called__________?

• A. Sub directory
• B. Mini directory
• C. Junior Directory
• D. Active directory

Explanation: A directory contained inside another directory is called a subdirectory. It provides a lower-level structure for organising files within the parent directory.

139. PNG is a file extention of__________?

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

Explanation: PNG, or Portable Network Graphics, is an image format that supports lossless compression and transparency. It is not an audio, video, or Flash file extension.

140. The Speed of CPU is measured in_______?

• A. megahertz
• B. gigahertz
• C. Both A & B
• D. None of these

Explanation: CPU clock speed is expressed in hertz-based units, commonly megahertz for older processors and gigahertz for modern ones. Thus both MHz and GHz are valid units.