Multiple choice general knowledge science & technology

A cell phone is basically a sophisticated:

  1. data recorder

  2. radio

  3. remote control

  4. voice processor
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A cell phone is fundamentally a sophisticated radio that transmits and receives voice signals through radio waves. Unlike traditional radios which primarily receive broadcast signals, cell phones use two-way radio communication to both transmit and receive calls. Voice processing and data recording are functions of cell phones but not their fundamental technology.

Keep practicing — related questions