IT word that are soooooo useful.

Edit Answers
12345678910
Across
  1. 3. a temporary storage space that allows fast access to data
  2. 4. abbreviation for 'plain old telephone service'
  3. 6. the part of a computer system that blocks unauthorised access while permitting authorised communications.
  4. 9. when you turn off a computer by holding the off button you are doing a _____________
  5. 10. a local or restricted communications network
Down
  1. 1. a file that organises other files in a hierarchical order
  2. 2. abbreviation for 'lightweight directory access protocol'
  3. 5. a device that routes traffic between networks
  4. 7. the abbreviation for 'K-12 high speed network'
  5. 8. abbreviation for 'local area network'