Crossword puzzle

12345678910111213
Across
  1. 2. basic input/output
  2. 3. the brain of the computer
  3. 6. binary digits
  4. 7. wide area network
  5. 8. short term memory
  6. 10. local are network
  7. 11. network internal face card
  8. 12. it handles all parts of the network
  9. 13. read-only memory
Down
  1. 1. the backbone
  2. 4. portable memory
  3. 5. things to connect all networks together
  4. 9. a screen