a pattern of dots and dashes, each one making up a letter or number

• Morse code
• binary code
• pixels
• bits

How 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.

Digital devices use _____ to send and transmit information.

• binary code
• Morse code
• pixels
• bits

A remote control sends signals to a television through:

• sound waves
• wires
• light waves
• binary code

A clear, bright image has:

• lots of pixels
• very few pixels
• lots of data
• binary code

What invention made it possible to communicate across long distances with electricity and Morse code?

• telephone
• telegraph
• television
• email

Images are made of millions of tiny dots called:

• Morse code
• binary
• bits
• pixels

Cell phones convert sound waves into ____, which are sent from tower to tower.

• light waves
• sound waves
• radio waves
• Morse code

A device used by computers to send and receive information.

• modem
• tower
• telegraph
• telephone

a set of instructions that tells a computer what to do

• hieroglyphics
• Morse code
• pixels
• programs