Computers and computer systems

123456789
Across
  1. 3. a mobile telephone with computer features
  2. 4. portable personal computer
  3. 5. programs used with a particular computer system
  4. 7. a large powerful computer
  5. 8. the background image of a display screen
  6. 9. a portable computer
Down
  1. 1. electronic machine
  2. 2. computers that deliver
  3. 6. physical equipment used in a computer system