Across
- 3. Using only 0 and 1
- 4. Main computer in a network
- 6. Unit of information
- 8. One element of computer's defence
- 9. Type of data where all letters belong
- 10. Sequence of instructions
- 13. Logic operation
- 15. "Creator" for programms
- 17. Instrument for data protection
- 19. Machine by Alan Turing
- 20. Operation system
Down
- 1. One of devices needed to create local nerwork
- 2. Type of data which includes whole numbers
- 5. Operation repearted untill a particular value is reached
- 7. One element of program life cycle
- 11. To bypass a security
- 12. PC without system block
- 14. Type of network structure
- 16. It can be internal and external
- 18. Object-oriented programming enviroment