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BCA General Computer Science — practice by topic

Browse 126 questions across 5 Computer Science topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Computer Science topics

Computer Networks (34)Python Programming (32)Problem Solving and Algorithms (28)Computer System (26)Using Technology to Manage Information (6)

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A computer is described as an electronic device that can be:Read the answer and worked solution →A computer together with additional hardware and software is called a:Read the answer and worked solution →Devices that send control signals to a computer are termed:Read the answer and worked solution →A device that receives data from a computer for display is called an:Read the answer and worked solution →

Worked practice questions

A computer is described as an electronic device that can be:

  1. Programmed
  2. Photographed
  3. Popularised
  4. Personalised
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Correct answer: A. Programmed

1. A computer is not merely a calculating machine. 2. What separates it is that its behaviour can be set by instructions. 3. A computer is an electronic device that can be programmed. 4. It accepts data, processes it and generates a result. _Source: syllabus Computer Science, Ch 1 'Computer System'_

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A computer together with additional hardware and software is called a:

  1. Computer sequence
  2. Computer system
  3. Computer session
  4. Computer schedule
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Correct answer: B. Computer system

1. The bare machine is only part of the picture. 2. Adding the surrounding hardware and software makes the whole. 3. A computer along with additional hardware and software is called a computer system. 4. So the answer is a computer system. _Source: syllabus Computer Science, Ch 1 'Computer System'_

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Devices that send control signals to a computer are termed:

  1. Input devices
  2. Ideal devices
  3. Idle devices
  4. Index devices
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Correct answer: A. Input devices

1. Data has to reach the machine before anything can be processed. 2. The devices that carry it in have their own name. 3. The devices through which control signals are sent to a computer are input devices. 4. A keyboard, mouse and scanner are the examples given. _Source: syllabus Computer Science, Ch 1 'Computer System'_

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