Across
- 2. disc read with a blue-violet laser
- 5. a computer's or TV's signal onto a big screen
- 7. bytes
- 8. storage read by bouncing a laser off patterns on the disc
- 10. device you roll with your fingers; suits people with wrist strain
- 11. payment made by holding the card within a few cm of the terminal
- 12. device for face-to-face conferencing without travelling
Down
- 1. place the CPU looks for data; a "hit" here saves a trip to RAM
- 3. device used to type commands into a CLI
- 4. storage that keeps data as tiny magnetised dots
- 6. type where you pass through every file in order to reach yours
- 9. of RAM and cache: data is lost when power is cut