Sample PYQs from this paper with answers and explanations — sign in for the full paper in the app.
Question 1 Computer Basics
The term 'Cyberspace' was coined by:
- A. Tim Berners Lee
- B. Ted Nelson
- C. William Gibson
- D. Vannevar Bush
Correct answer: C. William Gibson
Correct answer (Option C):\nWilliam Gibson, a well-known science fiction author, coined the term 'Cyberspace' in his 1982 short story 'Burning Chrome' and popularized it further in his acclaimed 1984 novel 'Neuromancer'. He used it to describe a widespread, interconnected digital medium. Option C is correct.\n\nWhy others are wrong:\nOption A developed the World Wide Web. Option B coined the terms 'hypertext' and 'hypermedia'. Option C created the conceptual 'Memex' device.\n\nStudy tip:\nTerminology questions regarding digital historical milestones are frequent in Computer Basics syllabi. Remember the link between William Gibson and early sci-fi cyberculture.
Question 2 Computer Basics
A group of 8 bits is called:
- A. Nibble
- B. Kilobyte
- C. Byte
- D. Megabyte
Correct answer: C. Byte
Correct answer (Option C):\nA group of exactly 8 bits is called a byte. It represents the standard data unit used across computers to encode a single character of text. Option C is correct.\n\nWhy others are wrong:\nOption A consists of 4 bits (half a byte). Option B is a larger unit equal to 1024 bytes. Option D corresponds to 1024 kilobytes.\n\nStudy tip:\nReview standard computer storage hierarchies: 4 bits = 1 nibble, 8 bits = 1 byte, 1024 bytes = 1 KB.
Question 3 Computer Basics
The binary equivalent of 20 is:
- A. 10100
- B. 10111
- C. 11010
- D. 10011
Correct answer: A. 10100
Correct answer (Option A):\nTo convert decimal 20 to binary:\n20 / 2 = 10 remainder 0\n10 / 2 = 5 remainder 0\n5 / 2 = 2 remainder 1\n2 / 2 = 1 remainder 0\n1 / 2 = 0 remainder 1\nReading reminders from bottom to top yields 10100. Option A is correct.\n\nWhy others are wrong:\nOption B equals 23. Option C equals 26. Option D equals 19.\n\nStudy tip:\nQuickly verify binary positions using powers of 2 from right to left: 16, 8, 4, 2, 1. For 10100, we have 16 + 4 = 20.
Question 4 Computer Basics
Who was the brain child of World Wide Web?
- A. Ted Nelson
- B. Charles Babbage
- C. Vannevar Bush
- D. Tim Berners Lee
Correct answer: D. Tim Berners Lee
Correct answer (Option D):\nTim Berners-Lee invented the World Wide Web in 1989 while working at CERN. He created the first web browser, HTML, and HTTP protocol variants. Option D is correct.\n\nWhy others are wrong:\nOption A invented hypertext systems. Option B designed the mechanical Analytical Engine. Option C conceptualized early information retrieval via Memex.\n\nStudy tip:\nDo not confuse the invention of the underlying Internet infrastructure with the World Wide Web (WWW) layer built by Tim Berners-Lee.
Question 5 Computer Basics
Which is the Internet browser, developed in India?
- A. Google Chrome
- B. Mozilla Fire fox
- C. Epic
- D. Opera
Correct answer: C. Epic
Correct answer (Option C):\nEpic is a privacy-centric web browser developed by Hidden Reflex, an Indian software product company founded by Alok Bhardwaj. It is built on the Chromium source code framework. Option C is correct.\n\nWhy others are wrong:\nOption A belongs to Google (USA). Option B belongs to Mozilla Foundation (USA). Option D originated from Norway.\n\nRemember:\nEpic browser emphasizes automated tracking blocking and built-in encrypted proxy routing.
PSC PYQ