Computing

Quiz on key computing key terms.

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1. What Is A Virus

  • A malware program that attaches itself to files and is designed to spread within a computer and to other computers, usually causing the computer to become unreliable.
  • A malware program that uses the resources of the computer in which it is installed to spread to other computers and cause the computers to become unreliable. (Unlike a virus, a worm does not attach itself to files.)
  • A malware program that runs silently on a user’s computer and enables another user to connect to the computer and take control of it.
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2. What Is an Input device

  • A device that is used to enter data into a computer. It takes data that a user presents and converts it into binary code.
  • A device that presents the result of processing. It converts binary data into a form which can be read by a user, or into a result in the external world.
  • Storage that can be disconnected from the main computer unit, for example to transfer files between computers.

3. What Is Magnetic storage

  • Storage that uses a surface which can be magnetised to store data.
  • Storage that works by storing the data in electronic circuits.
  • Storage that can be disconnected from the main computer unit, for example to transfer files between computers.

4. What Is A Fetch–Execute cycle

  • Memory buffer on the processor that stores instructions which have been fetched before and allows them to be fetched more quickly the next time.
  • The process by which programs are run on a computer. The processor repeatedly fetches the instructions of the program from memory and executes them.
  • The speed at which the processor carries out instructions, measured in Megahertz (MHz) or Gigahertz (GHz).

5. What Is Adware

  • A utility that searches for and removes any malware on a computer.
  • A program that repeatedly and disruptively displays advertisements on a user’s computer.
  • A malware program that uses the resources of the computer in which it is installed to spread to other computers and cause the computers to become unreliable. (Unlike a virus, a worm does not attach itself to files.)

Comments

steve

nice test

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