comp arch

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Across
  1. 4. Physical components of a computer system, internal or external
  2. 7. Non-volatile memory that cannot be changed in normal use
  3. 9. Portable computer with monitor, keyboard and battery in one device; hard to repair and upgrade
  4. 10. Unit for measuring CPU clock speed, a billion cycles per second
  5. 11. Display that is also an input device, used on tablets and ticket machines
  6. 14. Startup instructions held in ROM so the OS can load when you press the power button
  7. 15. Actuator that raises temperature in an oven or a greenhouse
  8. 16. Application software that organises numeric data and uses formulas like CountIf and Lookups
Down
  1. 1. Application software that stores data using fields and records and answers queries
  2. 2. Touch screen computer with longer battery life than a phone but limited memory compared to laptops
  3. 3. Type of image made of pixels that can be changed one by one, unlike vector graphics
  4. 5. Main output device that shows the computer's display
  5. 6. Pocket computer with an OS, touch screen, sensors and cameras that also makes calls
  6. 8. Reads characters in magnetic ink at the bottom of bank cheques
  7. 12. Bulky older display type that works with light pens
  8. 13. Old storage disk holding only 1.4 MB