Components of a computer system

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1. What is cache memory?

  • Slower memory meant to be used with ROM
  • Very fast memory that stores regularly used data for quick access by the CPU.
  • Slower memory meant to be used along with RAM
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2. What is ROM?

  • Read Only Memory - non-volatile, contains read-only information such as the BIOS (boot instructions) for a computer. May also be used in games and applications.
  • Read Only Memory - non-volatile, stores what is currently in process by the computer
  • Read Only Memory - used for CD-ROMs

3. What does the arithmetic logic unit do?

  • Basic calculations
  • All calculations and logical (AND, OR, NOT) operations
  • Logical operations (AND, OR, NOT)

4. What is virtual memory?

  • Secondary storage used as extra RAM
  • Memory that does not exist
  • ROM used as extra RAM

5. What is utility software?

  • Software designed for a specific task only (i.e. defragmentation, encryption software)
  • A type of operating system
  • Software used in utilities
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