Across
- 4. 1800s device that sent Morse code messages over wires
- 6. Wireless networking that connects devices without cables
- 8. Small affordable computer designed for one person
- 9. 1960s U.S. military network that became the foundation of the internet
- 10. Gear-driven machine that performed math before electricity
- 12. Acronym for windows, icons, and menus that replaced typed commands
- 13. Device combining a phone, camera, and computer, first popularized in 2007
- 15. Storage that keeps files on the internet instead of on your computer
- 16. Ancient counting tool with beads on rods
- 17. Tiny switch invented in 1947 that replaced vacuum tubes
- 19. Shiny optical disc, short for Compact Disc, used for music and data
- 21. Spinning magnetic disk that stores computer files
- 22. Integrated circuit that put many transistors on one chip
Down
- 1. Machine that performs trillions of calculations per second
- 2. CPU-on-a-chip first created in 1971, the "brain" of a computer
- 3. Abbreviation for Artificial Intelligence, machines that "learn" and make decisions
- 5. Stiff paper with holes used to store early computer data
- 7. Glass part that powered early computers but overheated often
- 11. System of sites and links known as the World Wide Web
- 14. Giant computer used by banks and governments for big data
- 18. Electromechanical switch that allowed early computers to "think"
- 20. Portable bendy disk used for storage in the 1980s and 1990s