All Free Computer Science and IT MCQs with Answers

171. KB stands for ________?

• A. Kernel Boot
• B. Kit Bit
• C. Kilo Byte
• D. Key Block

Explanation: KB commonly denotes kilobyte, a unit of digital storage or data size. In strict binary notation, KiB means 1,024 bytes, while KB is often used for either 1,000 or 1,024 bytes depending on context.

172. WhatsApp was founded in 2009 by:_____________?

• A. Brian Acton
• B. Jan Koum
• C. Mark Zuckerberg
• D. Both A & B

Explanation: Jan Koum and Brian Acton co-founded WhatsApp in 2009. Mark Zuckerberg joined later when Facebook acquired the company.

173. ANSI stands for _______?

• A. Asian Narcotics Standards Institute
• B. American National Standards Institute
• C. Asian National Standards Institute
• D. American Narcotics Standards Institute

Explanation: ANSI expands to American National Standards Institute, an organization that develops and coordinates voluntary standards in the United States. The other choices incorrectly replace National or Standards with Asian or Narcotics.

174. Collection of characters, numbers and symbols is?

• A. Data
• B. Keyboard
• C. Monitor
• D. Ram

Explanation: Data is a collection of raw characters, numbers, and symbols that can be processed by a computer. A keyboard is an input device, whereas a monitor and RAM are hardware components.

175. VLSI stands for ___________?

• A. Very Large Scale Immunisation
• B. Very Large Scale Integration
• C. Very Large Scale Industry
• D. Very Low Scale Immunisation

Explanation: VLSI means Very Large Scale Integration, the technique of placing a very large number of electronic components on one integrated circuit. The alternatives change Integration to unrelated words.

176. USB stands for ________?

• A. Uniform Serial Bus
• B. Uniform System Bus
• C. Universal Serial Bus
• D. Universal System Bus

Explanation: USB stands for Universal Serial Bus, a standard interface for connecting peripherals and transferring data and power. The words Uniform and System do not form the recognized expansion.

177. GPS stands for ________?

• A. Grade Positioning System
• B. Global Post System
• C. Guarantee Positioning System
• D. Global Positioning System

Explanation: GPS means Global Positioning System, a satellite-based system used to determine location, navigation, and time. The other expansions do not describe this technology.

178. Who is the father of personal computer?

• A. Edward Robert
• B. Allen Turing
• C. Charles Babbage
• D. None of these

Explanation: Ed Roberts, whose full name was Henry Edward Roberts, designed the Altair 8800 and is commonly called the father of the personal computer. The option has a minor name error, writing “Edward Robert” instead of Edward Roberts.

179. Abacus was the first __________________.

• A. Electronic computer
• B. mechanical computer
• C. electronic calculator
• D. mechanical calculator

Explanation: The abacus is a manually operated mechanical calculating device and is widely described as the earliest calculator. It was not electronic because it uses beads and rods rather than electrical circuits.

180. Which generation of computer is still under development?

• A. Fourth Generation
• B. Fifth Generation
• C. Sixth Generation
• D. Seventh Generation

Explanation: In the traditional computer-generation classification, fifth-generation computers are associated with artificial intelligence and are described as still under development. Later labels such as sixth generation are not used consistently in standard introductory textbooks.