Q1. What is the decimal value of the binary number 1011?
A 9
B 13
C 11 Correct
D 15
Explanation
To convert 1011 from binary to decimal, multiply each bit by its place value: 8, 4, 2 and 1. The sum is 8 + 0 + 2 + 1 = 11.
Paper - II (iii) — Fundamentals of Computer MCQ — 44 Practice Questions with Answers
Paper - II (iii) — Fundamentals of Computer is a Computer Pedagogy & Fundamentals (Senior CI) topic in the RAS/RPSC syllabus. This page gathers exam-style Paper - II (iii) — Fundamentals of Computer multiple-choice questions with correct answers and explanations, so aspirants can test recall and revise frequently examined concepts.
Practice 44 Paper - II (iii) — Fundamentals of Computer multiple-choice questions with detailed answers and explanations. Ideal for RAS/RPSC exam preparation.
44 Questions Computer Pedagogy & Fundamentals (Senior CI)
Reviewed by: Aspirant Academy Editorial Team
Practice Questions
Q2. In a positional number system, what is the base of the binary number system used for internal representation in digital computers?
A 2 Correct
B 8
C 10
D 16
Explanation
The binary number system has only two possible digits: 0 and 1. Therefore each place value is a power of 2, making 2 the base of the system.
Q3. What is the decimal equivalent of the binary number (1011)2?
A 9
B 11 Correct
C 15
D 13
Explanation
To convert 1011 from binary to decimal, multiply each bit by its positional value: 1x8 + 0x4 + 1x2 + 1x1. The sum is 11.
Q4. Which number system uses only the symbols 0 and 1?
A Binary number system Correct
B Octal number system
C Decimal number system
D Hexadecimal number system
Explanation
The binary number system is a base-2 positional system. Digital computers internally represent data using two states, conventionally written as 0 and 1.
Q5. Which option correctly classifies a keyboard and a printer by their usual computer functions?
A Keyboard: output device; Printer: input device
B Keyboard: processing device; Printer: memory device
C Keyboard: storage device; Printer: processing device
D Keyboard: input device; Printer: output device Correct
Explanation
Input devices capture data or commands for the computer, so a keyboard is an input device. Output devices present processed results, and a printer presents them on paper.
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Frequently Asked Questions
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There are 44 Paper - II (iii) — Fundamentals of Computer practice MCQs available on Aspirant Academy, with detailed answers and explanations for each question.
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How is Paper - II (iii) — Fundamentals of Computer relevant to the RAS/RPSC exam?
Paper - II (iii) — Fundamentals of Computer falls under the Computer Pedagogy & Fundamentals (Senior CI) section of the RAS/RPSC syllabus. It is a frequently tested area and regular practice with these MCQs will strengthen your preparation.
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