ACTIVITY 3 : HOW COMPUTERS WORK

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Across
  1. 2. Signal / Is any continuous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity.
  2. 4. system / A system in which information can be expressed by combinations of the digits 0 and 1.
  3. 7. unit / (CU) is a component of a computer's central processing unit (CPU) that directs operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.
  4. 10. and logic unit / A digital circuit used to perform arithmetic and logic operations.
  5. 12. speed / The operating speed of a computer or its microprocessor, defined as the rate at which it performs internal operations and expressed in cycles per second (megahertz).
  6. 14. / The SI unit of frequency, equal to one cycle per second.
Down
  1. 1. processing unit / The part of a computer in which operations are controlled and executed.
  2. 3. / A unit of measurement for alternating current (AC) or electromagnetic (EM) wave frequencies equal to 1,000,000,000 Hz. 2
  3. 5. Circuit / An electronic circuit formed on a small piece of semiconducting material, performing the same function as a larger circuit made from discrete components.
  4. 6. memory / Once data has been written onto this chip, it cannot be removed and can only be read.
  5. 8. Signal / Refers to an electrical signal that is converted into a pattern of bits.
  6. 9. memory / Acronym for random access memory, a type of computer memory that can be accessed randomly.
  7. 11. memory / An auxiliary memory from which high-speed retrieval is possible.
  8. 12. memory / A small, battery-backed memory bank in a computer that holds configuration settings.
  9. 13. / One million hertz, especially as a measure of the frequency of radio transmissions or the clock speed of a computer.