Information Technologies Review

_______ is technology that is the most advanced

• Digitized information

• Degradation

• High-tech devices

• Computers

Tags

NGSS.MS-PS4-3

_______ is information stored entirely in numbers

• Digitized information

• Degradation

• High-tech devices

• Computers

Tags

NGSS.MS-PS4-3

_______ is to become less in value or wearing down

• Digitized information

• Degradation

• High-tech devices

• Computers

_______ is an electronic device for storing and processing data

• Digitized information

• Degradation

• High-tech devices

• Computers

A radio transmitter can detect sound waves and convert them into electromagnetic waves that it can ___________________ over long distances.

• Cell phones

• Decode

• Transmit

• Digital

Tags

NGSS.MS-PS4-3

A receiver can _________________ the electromagnetic waves and turn them back into sound waves for us to hear.

• Cell phones

• Decode

• Transmit

• Digital

Tags

NGSS.MS-PS4-3

Many digital devices, such as ________________________, have changed the way we collect information and communicate with each other

• Cell phones

• Decode

• Transmit

• Digital

Tags

NGSS.MS-PS4-3

The telegraph was one of the first electronic ___________________________ devices.

• Cell phones

• Decode

• Transmit

• Digital

Tags

NGSS.MS-PS4-3

Cell phones turn a voice into a digital signal that can be transmitted. In order to get the original message, the person receiving this digital signal must have a device with which characteristic?

• The same keyboard as the cell phone that sent the message

• The ability to decode the digital signal back into sound

• A size that makes it easy to fit into a pocket or purse

• A battery that can run electronics for more than six hours

The table provides information on a system for coding letters of the alphabet as digital signals using strings of zeros and ones. What is the smallest length of a string of ones and zeros needed to code for all 26 letters of the alphabet?

• 2

• 5

• 13

• 26