Introduction to Computing Sci. I — practice1 Past Questions

University of Ilorin COS101: 70 questions.

Topics: Boolean Algebra, Fundamentals of Truth tables and Precedence, Diverse And Growing Computers and Digital Applications, Basic Computing Concepts, Basic Components of Computer, The Internet: Its Application and Impact on the World Today, The Job Specializations for Computing Science Professionals

  1. ____ are programs which are written by computer manufacturers.
    1. Application Software
    2. Viral Software
    3. Analytical Software
    4. System Software
  2. The following are computer operations except ____
    1. Character manipulation
    2. Debugging skills
    3. Arithmetic operations
    4. Logical comparison
  3. Who was the first computer programmer recorded in history?
    1. Blaise Pascal
    2. Grace Hopper
    3. Augusta Ada Byron
    4. Charles Babbage
  4. A/An ____ is a program which translates programs written in HLL into its ML equivalent one line at a time.
    1. Linker
    2. Interpreter
    3. Compiler
    4. Preprocessor
  5. Which of the following is not an example of an Operating System?
    1. Dinux
    2. Unix
    3. Linux
    4. Macintosh
  6. The following are not auxiliary storage devices EXCEPT ____
    1. Magnetic tape
    2. Solid State Drive
    3. All of the above
    4. None of the above
  7. What is another name for Hollerith's Desks?
    1. International Business Machine
    2. Punch Card Machine
    3. Hollerith's Engine
    4. Computing Tabulating Recording Machine
  8. What did Charles Babbage study?
    1. Mathematics
    2. Analytical Engineering
    3. Computer Science
    4. Structural Engineering
  9. The CPU is a part of the Control Unit.
    1. True
    2. False
    3. Probably
    4. Ion know mehn
  10. Data is stored in a/an ____ location.
    1. Fixed
    2. Central
    3. Marginal
    4. All approachable
  11. What is another name for a particular data item?
    1. File
    2. Key
    3. Record
    4. Order
  12. Blaise Pascal completed his first model of his machine in what year?
    1. 1640
    2. 1642
    3. 1643
    4. 1645
  13. Who invented the ophthalmoscope?
    1. Blaise Pascal
    2. J.M. Jacquard
    3. Charles Babbage
    4. John Von Neumann
  14. Bill Gates and one other founded a company called 'Microsoft Corporation.' Who was the other person?
    1. J.V Atansoff
    2. Clifford Berry
    3. Paul G. Allen
    4. Howard Aiken
  15. What date did Bill Gates announce Microsoft Windows?
    1. November 10, 1981
    2. November 10, 1982
    3. November 10, 1983
    4. November 10, 1984
  16. Which of the following is not an application software?
    1. Assemblers
    2. Statistical Packages
    3. Spreadsheet Packages
    4. Word Processors
  17. ___ is a program that places an executable object file into memory and prepares it for execution.
    1. Linker
    2. Loader
    3. Memory Processor
    4. Preprocessor
  18. Records in a file can be arranged in sequential order in the following ways except ____.
    1. Chronological
    2. Alphabetical
    3. Alphanumerical
    4. Numerical
  19. A standardized collection of programs used to evaluate hardware and software is what?
    1. Application Program
    2. Benchmark Program
    3. Text Editor Program
    4. Linker Program
  20. What is the name of the man that is regarded as one of the fathers of the internet?
    1. Bill Gates
    2. Philip Emeagwali
    3. Clifford Berry
    4. J.V. Anstasoff
  21. Who was the principal designer of the Mark I?
    1. John Von Neumann
    2. Augusta Ada Byron
    3. Howard Aiken
    4. J.V. Anstasoff
  22. When was Mark I built?
    1. 1941
    2. 1942
    3. 1943
    4. 1944
  23. The word 'bug' had always been used to describe a defect since at least ____.
    1. 1889
    2. 1898
    3. 1988
    4. 1998
  24. Grace Hopper invented the first high-level machine. What is its name and in what year was it invented?
    1. Flow-matic, 1952
    2. Flow-matic, 1953
    3. COBOL, 1954
    4. COBOL, 1955
  25. In ___, Philip invented a formula.
    1. 1987
    2. 1988
    3. 1989
    4. 1990
  26. A _____ is a person that writes the series of instructions required to perform a well-defined task.
    1. Data Processing Manager
    2. System Analyst
    3. Programmer
    4. Data Analyst
  27. Who invented the first compiler?
    1. Augusta Ada Byron
    2. Herman Hollerith
    3. Grace Hopper
    4. Howard Aiken
  28. John Von Neumann contributed to set theory.
    1. True
    2. False
    3. Probably
    4. Ion know mehn
  29. Hollerith's Desks was used in a particular census in USA. What year of the census was that?
    1. 1889
    2. 1890
    3. 1891
    4. 1892
  30. The Abacus is known to have been used for counting as far back as ____.
    1. 400 B.C.
    2. 500 B.C.
    3. 600 B.C.
    4. 700 B.C.
  31. Which Boolean operation evaluates to 1 only when both independent variables are 1?
    1. XNOR
    2. AND
    3. OR
    4. All of the above
  32. In Boolean algebra, what does the operation X + Y represent?
    1. The logical AND operation
    2. The logical ADD operation
    3. The logical OR operation
    4. The logical NOR operation
  33. What is another name for Boolean algebra?
    1. Boolean calculus
    2. Boolean logic
    3. Boolean arithmetic
    4. Boolean operations
  34. The name 'Boolean' comes from:
    1. George Boolean
    2. George Boole
    3. George Bole
    4. George Boulé
  35. The following are not basic Boolean operations except?
    1. XOR
    2. XNOR
    3. OR
    4. NOR
  36. Which Boolean operation evaluates to 1 only when one variable is true and the other is false?
    1. OR
    2. NAND
    3. XOR
    4. All of the above
  37. Which Boolean operation outputs 0 when at least one independent variable is 1?
    1. AND
    2. OR
    3. NOR
    4. NAND
  38. Which gate is a complement of the logical 'either/or' gate?
    1. NOT
    2. NOR
    3. EXOR
    4. EXNOR
  39. Which law(s) allow for more complex functions to be formed from the basic gates?
    1. Commutative, Distributive, and Associative
    2. De Morgan's Law
    3. Only commutative
    4. Idempotent laws
  40. What is another name for the NOT gate?
    1. Logical inverter
    2. Boolean inverse
    3. All of the above
    4. None of the above
  41. Which of the following operators is a unary operator?
    1. NOR
    2. NOT
    3. OR
    4. None of the above
  42. What does a pre-processor do?
    1. Analyze information before processing
    2. Process information in high-level language
    3. Convert a program from low-level to high-level
    4. Takes a program in one high-level language and produces it in another
  43. Which machine first employed binary arithmetic?
    1. Mark I
    2. Analytical Engine
    3. JV Atanasoff machine
    4. Jacquard Loom
  44. This machine consisted of a punch, tabulator, and an electrically activated sorting box. What machine is this?
    1. Hollerith desks
    2. Mark I
    3. Jacquard Loom
    4. John Von Neumann machine
  45. Who invented the concept of the stored program?
    1. Babbage
    2. Atanasoff
    3. Augusta Ada Byron
    4. Von Neumann
  46. How many dials does the Pascaline have?
    1. 8
    2. 4
    3. 3
    4. 9
  47. Who was a professor of Physics and Maths at Iowa University?
    1. Atanasoff
    2. Aiken
    3. Babbage
    4. None of the above
  48. What year did Atanasoff successfully complete his machine?
    1. 1937
    2. 1941
    3. 1944
    4. 1947
  49. The earliest attempt to build an all-electronic digital computer was by?
    1. Howard Aiken
    2. JV Atanasoff
    3. John von Neumann
    4. Charles Babbage
  50. _________ contributed to the design of high-speed computing devices.
    1. Philip Emeagwali
    2. John von Neumann
    3. Charles Babbage
    4. JV Atanasoff
  51. The abacus is a ______ computing device.
    1. Analog
    2. Digital
    3. General Purpose
    4. Hybrid
  52. Adding a NOT Gate to a NAND gate would give you?
    1. NOR Gate
    2. AND Gate
    3. XOR Gate
    4. XNOR Gate
  53. How many possible input combinations are there for a Boolean function with three variables?
    1. 3
    2. 4
    3. 8
    4. 16
  54. Which logic gate never produces an output of 1 regardless of input?
    1. AND Gate
    2. NOR Gate
    3. XOR Gate
    4. None of the above
  55. In a logic gate, the input is ______ and the output is ______.
    1. independent, dependent
    2. dependent, independent
    3. neither dependent nor independent
    4. always the same
  56. What differentiates Boolean algebra from arithmetic algebra?
    1. Symbols used
    2. Number of operations
    3. Operators and operations
    4. None of the above
  57. If you apply two NOT operations on an input value, the output would be?
    1. The negated value
    2. Same as original
    3. The inverse
    4. Zero
  58. If you take the output of an AND gate where A=1, B=0 and feed it into a NOT gate, what do we get?
    1. 0
    2. 1
    3. Undefined
    4. None of the above
  59. What does a truth table analyze and validate?
    1. Algebraic equations
    2. Logical expressions
    3. Input-output relations
    4. None of the above
  60. What branch of algebra has to do with truth tables?
    1. Arithmetic algebra
    2. Linear algebra
    3. Boolean algebra
    4. Abstract algebra
  61. Which of the following statements about a truth table is not correct?
    1. It relates to Boolean algebra
    2. It has to do with Boolean functions
    3. It tells if an expression is logically valid
    4. Output is independent of the input
  62. Imagine a circuit with two NOT gates in sequence; if you add an OR gate after them, what operation are you performing?
    1. NOT operation
    2. AND operation
    3. OR operation
    4. None of the above
  63. The AND operator is represented by a ______ sign.
    1. Plus
    2. Minus
    3. Period/Dot
    4. Equals
  64. Which inputs correspond to an XOR output equal to 1?
    1. Both inputs are the same
    2. Both inputs are 1
    3. When both inputs are different
    4. None of the above
  65. Which Boolean operation outputs 0 when one or more independent variables are 1?
    1. AND
    2. OR
    3. NOR
    4. XOR
  66. Crime Scene Investigation at Unilorin: Two suspects A and B were involved in cultism. The police know statements are true if both admit or both deny, but false if one admits while the other denies. Which expression represents their truth values?
    1. A + B
    2. A · B
    3. A ⊕ B
    4. (A ⊕ B)'
  67. If the Boolean expression is (A + B)(A' + C) with A=1, B=0, C=1, what is the expression's value?
    1. 0
    2. 1
    3. Undefined
    4. 2
  68. A babalawo's charm works only when neither Monkey Tail (A) nor Alligator Pepper (B) is added. Which logic gate ensures safety?
    1. OR Gate
    2. XOR Gate
    3. AND Gate
    4. NOR Gate
  69. Solve the Boolean expression: (1 + 0)(0 + 1)
    1. 0
    2. 1
    3. Undefined
    4. 2
  70. In a class group: 1) CR locks (NOT), 2) ACR unlocks (NOT), 3) Messages if any admin approves (OR), 4) Modified to require both approvals (AND). What logic gate sequence is this?
    1. NOT → OR → AND
    2. NOT → XOR → AND
    3. NOT → OR → NAND
    4. XOR → OR → AND

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