MCQs / Computer Science / Types of Computers and Basic Operations

Types of Computers and Basic Operations MCQs — Computer Science (page 2)

42 multiple-choice questions on Types of Computers and Basic Operations from Computer Science, each with the correct answer and, where available, a teacher's explanation. Read through them to revise the chapter, then practise the same questions one by one to test yourself.

26. CBIS stands for:

  1. Coded Binary Information System
  2. Computer Based Information System
  3. Computer Business Integrated Software
  4. Central Business Information Service

Answer: B) Computer Based Information System

Explanation: CBIS is an information system that uses computers.

Discuss this question

27. Airline seat reservation requires:

  1. batch processing
  2. real-time processing
  3. no processing
  4. offline processing

Answer: B) real-time processing

Explanation: Seats must be updated immediately to avoid double booking.

Discuss this question

28. Banks and airlines that need thousands of users connected at the same time typically use:

  1. hybrid computers
  2. supercomputers only
  3. smartphones
  4. mainframe computers

Answer: D) mainframe computers

Explanation: Mainframes support many simultaneous users and huge transaction volumes.

Discuss this question

29. CPU clock speed is usually measured in:

  1. gigabytes (GB)
  2. pages per minute
  3. gigahertz (GHz)
  4. dots per inch

Answer: C) gigahertz (GHz)

Explanation: GHz = billions of clock cycles per second.

Discuss this question

30. A computer used in an ICU that takes analog body signals and shows digital results is a(n):

  1. analog computer
  2. minicomputer
  3. supercomputer
  4. hybrid computer

Answer: D) hybrid computer

Explanation: It combines analog input with digital processing.

Discuss this question

31. Hybrid computers convert analog signals to digital using a(n):

  1. ALU
  2. DAC only
  3. ADC (analog-to-digital converter)
  4. modem

Answer: C) ADC (analog-to-digital converter)

Explanation: An ADC converts continuous signals into digital form.

Discuss this question

32. Preparing monthly electricity bills is a good example of:

  1. time-sharing
  2. batch processing
  3. real-time processing
  4. distributed processing

Answer: B) batch processing

Explanation: Readings are collected and processed together.

Discuss this question

33. A computer that works on continuous physical quantities like voltage or temperature is a(n):

  1. mainframe computer
  2. analog computer
  3. microcomputer
  4. digital computer

Answer: B) analog computer

Explanation: Analog computers measure continuously varying quantities.

Discuss this question

34. Supercomputers achieve their speed mainly by:

  1. avoiding memory
  2. parallel processing with thousands of processors
  3. using a single slow processor
  4. using vacuum tubes

Answer: B) parallel processing with thousands of processors

Explanation: Many processors work on parts of a problem at the same time.

Discuss this question

35. The "brain" of the computer is the:

  1. CPU
  2. monitor
  3. hard disk
  4. keyboard

Answer: A) CPU

Explanation: The CPU processes all data and instructions.

Discuss this question

36. Which is the correct order from largest to smallest?

  1. Minicomputer, mainframe, supercomputer, microcomputer
  2. Supercomputer, mainframe, minicomputer, microcomputer
  3. Mainframe, supercomputer, microcomputer, minicomputer
  4. Microcomputer, minicomputer, mainframe, supercomputer

Answer: B) Supercomputer, mainframe, minicomputer, microcomputer

Explanation: Size and power decrease in this order.

Discuss this question

37. Arithmetic and logical operations are performed by the:

  1. ALU
  2. Control Unit
  3. hard disk
  4. RAM

Answer: A) ALU

Explanation: ALU = Arithmetic Logic Unit.

Discuss this question

38. A computer built around a microprocessor and used by one person at a time is a:

  1. mainframe
  2. microcomputer
  3. minicomputer
  4. supercomputer

Answer: B) microcomputer

Explanation: Personal computers are microcomputers.

Discuss this question

39. Which of the following is NOT a microcomputer?

  1. Smartphone
  2. Tablet
  3. IBM z16
  4. Laptop

Answer: C) IBM z16

Explanation: IBM z16 is a mainframe.

Discuss this question

40. Physical parts of a computer that can be touched are called:

  1. hardware
  2. software
  3. firmware
  4. data

Answer: A) hardware

Explanation: Hardware is the tangible part.

Discuss this question

41. A system that records daily sales and ATM transactions is a:

  1. Transaction Processing System (TPS)
  2. Expert System
  3. Executive Support System
  4. Decision Support System

Answer: A) Transaction Processing System (TPS)

Explanation: TPS records routine transactions.

Discuss this question

42. Which is NOT a component of a CBIS?

  1. Procedures
  2. Weather
  3. Hardware
  4. People

Answer: B) Weather

Explanation: CBIS components: hardware, software, data, procedures, people, network.

Discuss this question

Previous Page 2 of 2

Practise Types of Computers and Basic Operations MCQs

More Computer Science chapters