Computers

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Across
  1. 2. A code for representing English characters as numbers
  2. 4. The programs and other operating information used by a computer
  3. 5. A small handheld device which is moved across a mat or flat surface to move the cursor on a computer screen
  4. 8. A central processing unit, also referred to as a central processor unit, is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system
  5. 9. Graphical User Interface
  6. 10. A disk drive used to read from and write to a hard disk
  7. 14. A video camera connected to a computer, allowing its images to be seen by Internet users
  8. 16. A network interface controller is a computer hardware component that connects a computer to a computer network
  9. 18. Random Access Memory is of the utmost importance to a computer. Everything you use on your computer consumes RAM, so the more RAM you have, the more applications you can run at once
  10. 19. A panel of keys that operate a computer or typewriter
  11. 20. A combined device for modulation and demodulation, for example, between the digital data of a computer and the analogue signal of a telephone line
Down
  1. 1. A set of computer instructions in firmware which control input and output operations
  2. 3. a compact disc used as a read-only optical memory device for a computer system
  3. 5. A device that displays signals on a computer screen
  4. 6. A standard for connection sockets on computers and other electronic equipment
  5. 7. A printed circuit board that controls the output to a display screen
  6. 11. Computer memory on which data has been prerecorded
  7. 12. The machines, wiring, and other physical components of a computer or other electronic system
  8. 13. In computer science, an interface is the point of interaction with software, or computer hardware, or with peripheral devices such as a computer monitor or a keyboard
  9. 15. A printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into
  10. 17. Sound, especially when recorded, transmitted, or reproduced