Introduction to Computing Sci. I — 2021 Past Questions

University of Ilorin COS101: 74 questions.

Topics: Basic Computing Concepts, Boolean Algebra, Fundamentals of Truth tables and Precedence, Basic Components of Computer, Diverse And Growing Computers and Digital Applications, The Job Specializations for Computing Science Professionals

1. The NOT operator is represented by ............
   1. X ̅
   2. (X)
   3. X!
   4. X#
2. Which of the following is not a binary operator?
   1. NOT
   2. AND
   3. OR
   4. XOR
3. Which of these is an example of first generation computer?
   1. IBM 360
   2. ATLAS
   3. IBM 400
   4. UNIVAC
4. The generation of computers built around Very Large-Scale Integrated Circuitry (VLSI) is ...?
   1. First generation
   2. Fourth generation
   3. Second generation
   4. Third generation
5. IBM 360/370 series is an example of ...?
   1. First generation
   2. Second generation
   3. Third generation
   4. Fifth generation
6. Expert Systems development is enabled in what generation?
   1. First generation
   2. Fourth generation
   3. Second generation
   4. Fifth generation
7. The type of computer specially developed to perform only one task is ...?
   1. Special computer
   2. Mainframe computer
   3. General-purpose computer
   4. Hybrid computer
8. Who invented Pascaline?
   1. Augusta Ada
   2. Charles Babbage
   3. Blaise Pascal
   4. Niklaus Wirth
9. Who was the first computer programmer?
   1. Charles Babbage
   2. Blaise Pascal
   3. Augusta Ada
   4. Grace Hopper
10. A program that translates HLL into machine language all at once is ...?
    1. Interpreter
    2. Pre-processor
    3. Assembler
    4. Compiler
11. A program that converts assembly language to machine language is ...?
    1. Interpreter
    2. Assembler
    3. Compiler
    4. None
12. A program that converts HLL to machine language line-by-line is ...?
    1. Interpreter
    2. Assembler
    3. Compiler
    4. None
13. The full meaning of DBMS is ...?
    1. Database Management System
    2. Data Management System
    3. Database Management Science
    4. None
14. The full meaning of BASIC is ...?
    1. Beginner’s All-purpose Symbolic Instruction Code
    2. Beginner’s Always Symbolic Instruction Code
    3. Beginners All-purpose Symbolic Instruction COBOL
    4. None
15. A sequence of instructions to accomplish a task is ...?
    1. Utility software
    2. Program
    3. Software
    4. Humanware
16. A piece of raw fact is ...?
    1. Information
    2. Data
    3. Memory
    4. Storage
17. Processed data is known as ...?
    1. Numeric data
    2. Processed data
    3. Information
    4. Memory
18. All are features of electronic computers except ...?
    1. Low accuracy
    2. Consistency
    3. High speed
    4. Flexibility
19. Computers are classified according to ...?
    1. Generations only
    2. Size and Types only
    3. Generations, Size, Types, Usage
    4. Usage only
20. Computers are intelligent. TRUE/FALSE?
    1. False
    2. True
    3. Both
    4. None
21. The major component of third-generation computers is ...?
    1. Integrated Circuit
    2. Transistor
    3. Resistor
    4. Vacuum tube
22. Thousands of transistors combined into one unit form ...?
    1. Transistor
    2. Resistor
    3. Vacuum tube
    4. Integrated Circuit
23. First-generation computers were based on ...?
    1. Vacuum tube
    2. Resistor
    3. Transistor
    4. Integrated circuit
24. Measures changes in current/temperature/pressure for processing ...?
    1. Digital computer
    2. Analogue computer
    3. Hybrid computer
    4. None
25. Operates on discrete values ...?
    1. Digital computer
    2. Analogue computer
    3. Hybrid computer
    4. None
26. Classification by size excludes ...?
    1. Mainframe
    2. Micro
    3. Notebook
    4. Hybrid
27. Handles diverse programs like payroll, inventory, etc. ...?
    1. Special computers
    2. General-purpose computers
    3. Ordinary computers
    4. None
28. Correct characteristics of Abacus ...?
    1. Upper/lower zones with 2+5 beads
    2. Upper zone has 2 beads only
    3. All zones have 5 beads
    4. Used only for addition
29. Blaise Pascal died in ...?
    1. 1623
    2. 1662
    3. 1632
    4. 1963
30. Whose designs were closest to modern computers?
    1. Blaise Pascal
    2. Charles Babbage
    3. Abacus
    4. Joseph Marie
31. The usage of Microprocessors started in ............... generation
    1. Third
    2. Second
    3. First
    4. Fourth
32. _______ is credited with coining the word 'debugging' to describe the work to eliminate program faults.
    1. Grace Hopper
    2. Howard Aiken
    3. J.V Atanasoff
    4. John Von Neumann
33. Grace Hopper invented the first high-level language, 'Flow-matic,' in what year?
    1. 1973
    2. 1953
    3. 1963
    4. 1943
34. _______ refers to the physical components and the devices which make up the visible computer.
    1. Software
    2. Hardware
    3. Humanware
    4. All of the above
35. _______ are responsible for feeding data into the system and for collecting information from the system.
    1. CPU
    2. ALU
    3. Main Unit
    4. Peripherals
36. _______ is responsible for all processing that the computer does.
    1. CPU
    2. ALU
    3. Main Unit
    4. Peripherals
37. _______ is the unit for arithmetic and logical operations.
    1. Main Storage
    2. ALU
    3. Control Unit
    4. Peripherals
38. _______ are used for storing information on a long-term basis.
    1. Input device
    2. Output device
    3. Auxiliary Storage Device
    4. Main storage
39. Which of these is not an example of an input device?
    1. Keyboard
    2. Mouse
    3. Microphone
    4. Printer
40. Webcam is _______.
    1. Output device
    2. Input device
    3. Auxiliary device
    4. All of the above
41. _______ are basically referred to as programs.
    1. Hardware
    2. Software
    3. Humanware
    4. None
42. The two categories of software are _______.
    1. Application and System Software
    2. Application and Memory Software
    3. Memory and Application Software
    4. Memory and System Software
43. _______ are programs commonly written by computer manufacturers, which have direct effect on the control, performance and ease of usage of the computer system.
    1. System software
    2. Application software
    3. Memory software
    4. A&B
44. _______ is a judicious and efficient utilization of all the system resources such as the processor, memory, peripherals and other system data.
    1. Language Translators
    2. Utilities and Service Programs
    3. Operating System
    4. IDMB
45. All the following are examples of Operating Systems except _______.
    1. Unix
    2. Linux
    3. Windows
    4. Pascal
46. _______ is a complex program used for creation, storage, retrieving, securing and maintenance of a database.
    1. Interpreter
    2. Converter
    3. Compiler
    4. Database Management System
47. _______ can be described as an organized collection of related data relevant to the operations of a particular organization.
    1. DBMS
    2. Compiler
    3. Database
    4. Converter
48. _______ is a program that takes several object files and libraries as input and produces one executable object file.
    1. Loader
    2. Linker
    3. Database
    4. Operating system
49. _______ is a program that places an executable object file into memory and makes it ready for execution.
    1. Loader
    2. Linker
    3. Database
    4. Operating system
50. _______ are used for detecting and correcting errors in programs.
    1. Merge utility
    2. Copy utility
    3. Sort utility
    4. Debugging Facilities
51. _______ is used to combine two or more already ordered files together to produce a single file.
    1. Merge Utility
    2. Copy utility
    3. Sort utility
    4. Text editor
52. _______ programs are written by a user to solve his/her own application problem.
    1. System software
    2. Application software
    3. Operating system
    4. None
53. Application software can be divided into _______.
    1. Application Package and User’s Application Program
    2. System analyst and operator
    3. COBOL and PASCAL
    4. Sort and Merge utility
54. _______ is a program written by the user to solve a specific problem which is not generalized in nature.
    1. Application Package
    2. Application Program
    3. User’s Application Program
    4. None
55. MS-Word, WordPerfect, WordStar are _______.
    1. Application packages
    2. Database packages
    3. User’s packages
    4. System packages
56. Oracle, MS-Access, Sybase, SQL Server, and Informix are _______.
    1. Application packages
    2. Database packages
    3. User’s packages
    4. System packages
57. _______ is the person that writes the sequence of instructions to be carried out by the computer in order to accomplish a well-defined task.
    1. Operator
    2. Analyst
    3. Programmer
    4. Engineer
58. _______ is one for whom a computerized system is being implemented.
    1. An end-user
    2. Data entry analyst
    3. Programmer
    4. Operator
59. Computer memories are segmented in the form of _______.
    1. Decimal
    2. Binary
    3. Hexadecimal
    4. Octal
60. _______ refers to both the study of modes of reasoning and the use of valid reasoning.
    1. Modal analysis
    2. Boolean algebra
    3. Karnaugh map
    4. Logic
61. _______ is an elementary building block of a digital circuit.
    1. Logic gate
    2. Boolean Logic
    3. Karnaugh map
    4. Logic
62. The three basic logic gates are _______.
    1. XOR, NOR, AND
    2. AND, NAND, OR
    3. AND, OR, NOT
    4. AND, OR, NOR
63. _______ gate has only one input.
    1. AND
    2. OR
    3. NOR
    4. NOT
64. The logic gate in which the output is 'true' when both inputs are 'true.' Otherwise, the output is 'false' is _______.
    1. NOR gate
    2. AND gate
    3. OR gate
    4. NOT gate
65. The logic gate in which the output is 'false' if both inputs are 'true.' Otherwise, the output is 'true' is known as _______.
    1. NOR gate
    2. NOT gate
    3. NAND gate
    4. AND gate
66. _______ gate acts in the same way as the logical 'either/or.'
    1. XOR gate
    2. NOT gate
    3. NAND gate
    4. AND gate
67. The NOT operator is represented by _______.
    1. X
    2. (X)
    3. X^
    4. X̄
68. The AND operator is represented by _______.
    1. A/B
    2. A_B
    3. A()B
    4. A.B
69. The + operator is known as the _______ function in the logic domain.
    1. AND
    2. NOR
    3. OR
    4. NOT
70. Which of the following arrangements has the normal or correct order of precedence?
    1. NOT operations have the highest precedence, followed by AND operations, followed by OR operations.
    2. OR operations have the highest precedence, followed by NOT operations, followed by OR operations.
    3. AND operations have the highest precedence, followed by NOT operations, followed by OR.
    4. NOT operations have the highest precedence, followed by OR operations, followed by AND operations.
71. A + (B · C) = ?
    1. (A+B) · (C+B)
    2. (A + B) · (A + C)
    3. (A·B·C)
    4. (A+B+C)
72. A · A = ?
    1. 1
    2. A
    3. Ā
    4. 0
73. A + 1 = ?
    1. 1
    2. A
    3. Ā
    4. 0
74. _______ is a graphical method of Boolean logic expression reduction.
    1. Logic gate
    2. Boolean algebra
    3. Karnaugh map
    4. Logic operator

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