Across
- 3. a wave with a specific pattern that carries information
- 4. The science of light properties and behavior
- 5. The region where light is obstructed or blocked
- 9. Not generated from Digital Information
- 10. A unique 3-signal combination of dots and dashes codes for each letter of the alphabet and numbers 0 through 9.
- 11. Matter that allows some light to pass through
- 12. used to transmit television and radio programs
Down
- 1. Used to transmit information from a remote to a television
- 2. Generated from digital information
- 6. Matter that allows no light to pass through
- 7. Matter that allows all light to pass through
- 8. Used to transmit information between cellphones or between an internet router and a computer