Computers

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Across
  1. 1. A device that displays signals on a computer screen
  2. 3. Sound, especially when recorded, transmitted, or reproduced
  3. 5. The machines, wiring, and other physical components of a computer or other electronic system
  4. 6. Computer memory on which data has been prerecorded
  5. 7. A panel of keys that operate a computer or typewriter
  6. 9. A network interface controller is a computer hardware component that connects a computer to a computer network
  7. 11. The programs and other operating information used by a computer
  8. 13. A disk drive used to read from and write to a hard disk
  9. 15. A video camera connected to a computer, allowing its images to be seen by Internet users
  10. 16. A small handheld device which is moved across a mat or flat surface to move the cursor on a computer screen
  11. 17. A set of computer instructions in firmware which control input and output operations
  12. 18. Graphical User Interface
  13. 20. a compact disc used as a read-only optical memory device for a computer system
Down
  1. 1. A printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into
  2. 2. 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
  3. 4. A standard for connection sockets on computers and other electronic equipment
  4. 8. A printed circuit board that controls the output to a display screen
  5. 10. 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
  6. 12. 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
  7. 14. A code for representing English characters as numbers
  8. 19. A combined device for modulation and demodulation, for example, between the digital data of a computer and the analogue signal of a telephone line