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Intermediate Obsolete Communication Devices Crossword for Homeschool is a hard crossword puzzle with 18 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Intermediate Obsolete Communication Devices Crossword for Homeschool
Challenge your knowledge of intermediate obsolete communication devices with this hard crossword puzzle designed for homeschool families. Dive into technical and historical terms.
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  • 1. Device for transmitting photographs over communication lines
  • 6. Machine transmitting typed messages via electrical signals
  • 7. Portable device that receives numeric or alphanumeric messages
  • 11. System or device not requiring manual authorization signals
  • 15. Device that boosts telecommunication signal strength
  • 16. Audible notification signal used in old telephone systems
Down
  • 2. Electromagnetic wave modulated to convey information
  • 3. Type of modulation changing carrier frequency to encode data
  • 4. Physical connection between a telephone and the local exchange
  • 5. Electromechanical typewriter used to send typed messages over telegraph lines
  • 8. Pulse signaling method used in early telephone dialing
  • 9. Early device for recording and replaying sound on disks
  • 10. Telephone component that disconnects the call when handset is replaced
  • 12. Method of transmitting text via coded signals over wires
  • 13. Telephone with a circular dial for number selection
  • 14. Device or method for shorthand writing or message recording
  • 17. Former name for telecommunications service linking users, now obsolete
  • 18. Dot-and-dash system used in telecommunication
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