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Computer Number Systems and Hardware Basics

Test your knowledge of computer number systems (binary, octal, hexadecimal), conversions, historical hardware, and early computer systems. Covers fundamental concepts essential for computer science students.

25 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

The first commercially produced computer was

  1. EDSAC
  2. UNIVACI
  3. IBM
  4. MIPS
Question 2 Multiple Choice (Single Answer)

What type of operating system was used in second generation computers?

  1. IBM 7000
  2. Pentium
  3. UNIX
  4. SUNSPARC
Question 3 Multiple Choice (Single Answer)

The high level language not used by IBM 7000 series was

  1. ALGOL
  2. SNOBOL
  3. MIRANDA
  4. FORTRAN
Question 4 Multiple Choice (Single Answer)

Which of the following is not the merit of using transistors in place of vacuum tubes?

  1. Transistors occupy less space than vacuum tubes
  2. They consume less power than vacuum tube
  3. They are faster than vacuum tubes
  4. None of these
Question 5 Multiple Choice (Single Answer)

Human readable characters printed document such as cheques, can be entered into a floppy by means of a

  1. VDU
  2. Keyboard
  3. MICR
  4. OCER
Question 6 Multiple Choice (Single Answer)

A dot matrix printer is a

  1. Drum printer
  2. Chain printer
  3. Serial printer
  4. None of these
Question 7 Multiple Choice (Single Answer)

A drum printer consists of a cylindrical drum with characters embossed on it in a set of

  1. 24 lines of 80 characters each
  2. 48 lines of 120 characters each
  3. 96 lines of 132 characters each
  4. 52 lines of 96 characters each
Question 8 Multiple Choice (Single Answer)

How wide is the inter-block gap in a magnetic tape?

  1. 0.4 inches
  2. 0.6 inches
  3. 1.2 inches
  4. 1.4 inches
Question 9 Multiple Choice (Single Answer)

The object oriented language amongst the following is

  1. C
  2. C++
  3. ADA
  4. FORTRAN
Question 10 Multiple Choice (Single Answer)

Which of the following is not a function of the operating system?

  1. It provides program to control input/output devices
  2. It provides program to select appropriate translators required to by the user
  3. It provides allocation of resources to a computer
  4. It provides often required data such as trigonometric tables
Question 11 Multiple Choice (Single Answer)

Which of the following cannot be used as a numeric variable in BASIC?

  1. XI
  2. XY
  3. Y
  4. H
Question 12 Multiple Choice (Single Answer)

What number comes after 7 in the octal number system?

  1. 6
  2. 8
  3. 10
  4. 0
Question 13 Multiple Choice (Single Answer)

Which of the following assignment statements is correct?

  1. 40 LET B+C = 5
  2. 30 Let HH = M+2
  3. 127600 let M = C+X
  4. 55 LET N = N+1
Question 14 Multiple Choice (Single Answer)

The binary number (1101010101) in base 2, when converted to octal system gives

  1. (65) base 8
  2. (87.24) base 8
  3. (65.21) base 8
  4. (87.21) base 8
Question 15 Multiple Choice (Single Answer)

Complete the series: (324)8 , (327)8¸ (332)8, 

  1. (340)8
  2. (335)8
  3. (342)8
  4. (339)8
Question 16 Multiple Choice (Single Answer)

The diameter of a compact disk is

  1. 1.25 inches
  2. 3.25 inches
  3. 5.25 inches
  4. 6.75 inches
Question 17 Multiple Choice (Single Answer)

Complete the series: 14A9, 14AF, 14B5,

  1. 14C1
  2. 14BB
  3. 15B3
  4. 14B3
Question 18 Multiple Choice (Single Answer)

Complete the series: 6ADD, 6ADF, 6AE1, .....

  1. 6AE5
  2. 6AD5
  3. 6ABB
  4. 6AE3
Question 19 Multiple Choice (Single Answer)

Complete the series: (567)8, (576)8, (605)8,

  1. (623)8
  2. (625)8
  3. (614)8
  4. (633)8
Question 20 Multiple Choice (Single Answer)

Complete the series: (101)2, (111)2, (1001)2¸ (1011)2¸

  1. (1101)2
  2. (10111)2
  3. (12)2
  4. (1001)2
Question 21 Multiple Choice (Single Answer)

What no. will come in place of blank?
(237)8 = (…..)16

  1. 13111
  2. 237
  3. 9F
  4. 8F
Question 22 Multiple Choice (Single Answer)

Complete the series: (1011)2, (1110)2, (10000)2�

  1. (12)2
  2. (10101)2
  3. (10011)2
  4. (10110)2
Question 23 Multiple Choice (Single Answer)

(1101)2 + ….. = (1010111)2

  1. (1010)2
  2. (1001)2
  3. (1011)2
  4. (4)2
Question 24 Multiple Choice (Single Answer)

If (126)x = (56)y , find x and y

  1. 8, 16
  2. 16, 10
  3. 2, 8
  4. 16, 8
Question 25 Multiple Choice (Single Answer)

What no. will come in place of blank?
(1010)2 + …. = (1011)2

  1. (1100)2
  2. (1001)2
  3. (1111)2
  4. (1011)2
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