The operating system of a cell phone is stored in:

  1. the CPU.

  2. ROM.

  3. RAM.

  4. the transceiver.

Answer:

B

An analog-to-digital converter chip:

  1. converts written data into sound waves.

  2. converts the sound waves from a voice into a digital signal.

  3. converts letters from the keyboard into digital format.

  4. converts digital sound waves into analog sound waves.

Answer:

B

A base transceiver station receives a request for cellular service and passes that request to a central location called a:

  1. cellular switching tower.

  2. cellular request station.

  3. mobile conversion station.

  4. mobile switching center.

Answer:

D

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