Across
- 3. An invention that sent coded messages before the telephone
- 7. screen-based invention first used in homes in the 1950s modern handheld device that combines many technologies
- 9. A device used to listen to news and music before television
Down
- 1. machine that allows people to speak over long distances
- 2. invention became popular in offices in the 1980s
- 4. Online platforms like Facebook or WeChat
- 5. invention needed radio and telephone technology first
- 6. system that connects computers worldwide
- 8. A modern handheld device that combines many technologies