Introduction to Computing Sci. I — 2023 Past Questions

University of Ilorin COS101: 41 questions.

Topics: Boolean Algebra, Fundamentals of Truth tables and Precedence, Basic Computing Concepts, Basic Components of Computer, Diverse And Growing Computers and Digital Applications

1. What was the first machine that could add, subtract, multiply, and divide?
   1. Abacus
   2. Mechanical calculator
   3. Arithmometer
   4. PC
2. What component of the computer is correctly associated with the function it performs?
   1. Microprocessor : storage
   2. RAM : processing
   3. Monitor : output
   4. Optical drive : sound
3. Which of these is not an input device?
   1. Speakers
   2. Mouse
   3. Scanner
   4. Keyboard
4. Which type of storage does not accept new information?
   1. ROM
   2. RAM
   3. Hard drive
   4. Removable media
5. _____ is not an output media.
   1. Monitor
   2. Microphone
   3. Printer
   4. Joystick
6. Microprocessors are used in
   1. Computers
   2. Calculators
   3. Remote controls
   4. All of the above
7. In what way is the computer not smarter than a human being?
   1. Ability to recall information stored in a split second
   2. Ability to store massive amounts of information
   3. Ability to solve complex math problems in a second
   4. Ability to reason
8. ASCII is widely used to
   1. Printing documents
   2. Solving equations
   3. Transfer data between computers
   4. Programming in PHP
9. How is data represented in a computer system?
   1. Byte system
   2. Hexadecimal system
   3. Logical system
   4. Binary system
10. Which storage device ensures data is stored sequentially?
    1. DVD
    2. Flash disk
    3. Hard drive
    4. Tape
11. Which of these is not a storage media?
    1. Pen drives
    2. Joystick
    3. Blu-ray disc
    4. Compact disk
12. 1 gigabyte is the same as
    1. 1000 bytes
    2. 1024 megabytes
    3. 1000 megabytes
    4. 1000 megabits
13. Pick out the odd one
    1. Octal number system
    2. Logical number system
    3. Decimal number system
    4. Binary number system
14. This is not a basic Boolean operation
    1. AND
    2. OR
    3. NAND
    4. NOT
15. Boolean operations involve the set
    1. {1,0}
    2. {0,2}
    3. {1,2}
    4. {1,3}
16. The table above is a typical operation for
    1. ‘OR’ operation
    2. ‘AND’ operation
    3. ‘NOR’ operation
    4. ‘NOT’ operation
17. Truth Table is a way of
    1. Detecting falsehood in a computer
    2. Representing the results of a logic function
    3. Making Booleans operations complex
    4. Building game tables
18. Which is the proper precedence of Boolean operations?
    1. NOT > OR > AND
    2. NOT > AND > OR
    3. OR > NOT > AND
    4. AND > NOT > OR
19. How is ‘AND’ operation best represented?
    1. {X.Y}
    2. {X-Y}
    3. {X+Y}
    4. {X*Y}
20. Pick the correct association
    1. X1 : AND
    2. X0 : NOT
    3. X – Y : NOT
    4. X1 : NOT
21. ASCII means
    1. All Standard Counsel for International Information
    2. American Standard Counsel for International Information
    3. American Standard Code for Information Interexchange
    4. American Scholars Code for Information Interexchange
22. 16 bits is equivalent to
    1. 1.6 bytes
    2. 6 bytes
    3. 10 bytes
    4. 2 bytes
23. Which of the following is not an example of an operating system?
    1. Windows XP
    2. Android 4.2
    3. Angry Bird
    4. Redhat Linux
24. This is not a function of an operating system
    1. Controlling & allocating memory
    2. Handling system requests
    3. Controlling I/O devices
    4. Getting rid of virus
25. Which is not part of the Central Processing Unit?
    1. BLU
    2. ALU
    3. Memory Unit
    4. Control Unit
26. A computer basically has how many types of memory?
    1. One
    2. Two
    3. Three
    4. Four
27. Which is a volatile memory type?
    1. Flash disk
    2. RAM
    3. ROM
    4. DVD
28. Data bus carries _____ to and from the CPU and memory as required by instruction ________.
    1. Operands, operator
    2. Address, location
    3. Operands, translation
    4. Operands, CPU
29. What is another name for Boolean algebra?
    1. Truth logic
    2. Boolean logic
    3. Algebraic logic
    4. Computation logic
30. Choose the most appropriate definition of Truth Tables
    1. A means of representing the results of a logic function
    2. A means of representing computer logic
    3. A means of programming
    4. A means of calculating algebra
31. The output is true if either or both of the inputs are true denotes
    1. OR gate
    2. AND gate
    3. NOR gate
    4. NAND gate
32. In which category of computers do desktop computers, notebooks (laptops), and Personal Digital Assistants (PDAs) fall?
    1. Super computers
    2. Mainframe computers
    3. Mini computers
    4. Micro computers
33. Which of the following is NOT a function of the Operating System?
    1. Database management
    2. Disk management
    3. Memory management
    4. Process management
34. The complement of the OR of terms in a function is equivalent to the AND of the complement of the individual terms in the function. Which of the expressions below explains the theorem?
    1. (A' + B') = A'B'
    2. (A'B') = A'B'
    3. (A.B) = A' + B'
    4. A' + B = (A.B')
35. The statement 'output is true when both inputs are true. Otherwise, the output is false' represents which of the following logic gates
    1. OR
    2. AND
    3. NOR
    4. NAND
36. The first computer program was written by
    1. Grace Hopper
    2. Ada Lovelace
    3. Charles Babbage
    4. Von Neumann
37. The first computer program was written in
    1. 1840
    2. 1841
    3. 1842
    4. 1843
38. ALGOL stands for
    1. Algorithmic Language
    2. Algorithm Language
    3. Alphabetic Language
    4. All-inclusive Language
39. BASIC stands for
    1. Beginner All-purpose Scientific Instruction Code
    2. Beginner All-purpose Symbolic Instruction Code
    3. Beginner All-procedure Symbolic Instruction Code
    4. Beginner All-procedure Scientific Instruction Code
40. COBOL stands for
    1. Common Business Oriented Language
    2. Collective Business Oriented Language
    3. Common Business Online Language
    4. Collective Business Online Language
41. A compiler is used to translate
    1. HLL to LLL
    2. LLL to HLL
    3. ML to HLL
    4. HLL to ML

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