Across
- 4. interconnected
- 5. Customer
- 6. Talk online
- 9. Programme
- 10. device used to select items
- 15. enter data into a computer for processing
- 16. secret word
- 17. set of keys
- 19. state of being safe from electronic crime
- 20. Unit of data
Down
- 1. Problem-solving steps
- 2. computer part
- 3. Computer memory
- 7. organised data retrieved by a computer
- 8. collection of related data
- 11. primary display screen
- 12. transfer
- 13. single worldwide computer network
- 14. the capacity of a computer
- 18. to remove defects