Hard - Expert puzzle

Edit Answers
123456789101112131415161718192021
Across
  1. 3. every character in every language is given a number
  2. 6. stuff we want on a computer
  3. 12. every english character is given a single number
  4. 13. the number of cycles your gpu completes each second
  5. 15. Basic ___ ___ System
  6. 16. works like traffic cops for the BUS
  7. 17. takes heat away from the CPU
  8. 19. the central ___ unit
  9. 20. something that stores a single number
Down
  1. 1. a microscopic switch that controls the flow of electricity
  2. 2. a spinning ___ that stores data
  3. 4. the smallest unit of data that a computer can store
  4. 5. connects everything and allows them to communicate. Is the backbone of the computer.
  5. 7. gets the instructions and tells the ALU what to do
  6. 8. allows the use of CDs and DVDs
  7. 9. undesired things on the computer such as viruses, phising, and ransomware.
  8. 10. is high speed memory on the ___
  9. 11. holds all the currently running code
  10. 14. the piece of crystal that flashes electricity throughout the whole computer
  11. 15. a unit of memory size that is 8 digits in length
  12. 18. the part of the CPU that does the arithmetic and logic
  13. 21. used to measure computer proccesing speed