9E Dewaka crossword

12345678910111213141516171819202122232425262728
Across
  1. 3. - computer input device that uses a light beam to scan codes, text, or graphic images directly into a computer.
  2. 5. - control devices are also known as this.
  3. 6. – one or more Central Processing Units that carry out software instructions
  4. 9. - used for storing movies as the quality of sound and video output is good.
  5. 11. - this interface is controlled by the user by swiping their fingers on the screen or across the screen.
  6. 12. -a set of instructions, data or programs used to operate computers and execute specific tasks.
  7. 16. - An optical device that projects an image onto a surface.
  8. 17. - a device’s ability to connect to networks and other devices.
  9. 21. - an upside down mouse similar to a convectional mouse.
  10. 23. - used to make a device inactive so that it requires a password or PIN to reactive it.
  11. 24. - A webcam is a video camera that feeds or streams an image or video.
  12. 27. - used to read cheques.
  13. 28. - refers to computer memory chips containing permanent or semi-permanent data.
Down
  1. 1. - a form of computer memory that can be read and changed in any order.
  2. 2. - lets a single user listen to an audio source privately.
  3. 4. - oldest and most common input device and has been used since the computer was first manufactured.
  4. 7. - used to connect to a computer to generate sound
  5. 8. - Another name for dot matrix printers.
  6. 10. - consisting of bars and spaces, is a machine readable representation of numerals and characters.
  7. 13. - a network security device that monitors and filters incoming and outgoing network traffic.
  8. 14. - a user interface controlled by a pointer on the screen
  9. 15. - often used to control video games, consisting of a stick that pivots on a base and reports its angle to the device it is controlling.
  10. 18. - controls and directs the operation of the entire computer system.
  11. 19. - this interface is controlled by the user giving spoken commands to the device.
  12. 20. - a printer that interprets commands from a computer to make line drawings on paper with one or more automated pens.
  13. 22. - it is where the actual execution of the instructions takes place during the processing operation.
  14. 25. – a user interface controlled by entering text instructions
  15. 26. -an electronic visual computer display that includes a screen, circuitry and the case in which that circuitry is enclosed.