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- 1. Multiple Choicea pattern of dots and dashes, each one making up a letter or numberMorse codebinary codepixelsbits
- 2. Multiple ChoiceHow does a cell phone send a picture to another cell phone?It changes the picture into text.It sends the picture through sound waves.It downloads the picture into light waves.It codes the picture into digital information.
- 3. Multiple ChoiceDigital devices use _____ to send and transmit information.binary codeMorse codepixelsbits
- 4. Multiple ChoiceA remote control sends signals to a television through:sound waveswireslight wavesbinary code
- 5. Multiple ChoiceWhat invention made it possible to communicate across long distances with electricity and Morse code?telephonetelegraphtelevisionemail
- 6. Multiple ChoiceCell phones convert sound waves into ____, which are sent from tower to tower.light wavessound wavesradio wavesMorse code
- 7. Multiple ChoiceThe telegraph became less useful when what was invented?telephonebinary codecomputeremail
- 8. Multiple ChoiceWhat is the difference between analogue and digital data?Analogue is continuous data, whereas digital signals have two values, 0 and 1.Analogue has two values 0 and 1, whereas digital is continuous data.
- 9. Multiple Choice
I am the height of the wave. What am I?
Amplitude
Frequency
Phase shift
PCM
- 10. Multiple Choice
What is a method for turning analogue signals into digital?
Defragging
Pulse Code Modulation
DAC
Levelling
- 11. Multiple ChoiceHow can a signal be transmitted?ToneLightElectric PulsesAll of the Above
- 12. Multiple Choice
Which of the following is an example of an Analog signal?
Both of these
Neither of these
- 13. Multiple Choice
Which of the following is an example of an Digital signal storage?
All of these
- 14. Multiple Choice
"Noise" in information technology is considered
small and large tubes
a coded message like morse code
random signals that alter information signals
- 15. Multiple Choice
Which of the following graphs represents a digital wave?
- 16. Multiple ChoiceA big advantages of digital technology is the recording does degrade over time.TrueFalse
- 17. Multiple ChoiceIs this digital or analog?DigitalAnalog
- 18. Multiple ChoiceIs this digital or analog?DigitalAnalog
- 19. Multiple ChoiceIs this digital or analog?DigitalAnalog
- 20. Multiple ChoiceIs this digital or analog?DigitalAnalog
- Answer choicesTagsAnswer choicesTags