Digital Signals - 6th Grade

Digital vs Analog

quantitave data

data measured in numbers

qualitative data

data using descriptions-

how something looks, smells, feels etc.

digital signals are

Binary (0 or 1) (on or off)

analog signals are

continuous and vary in strength and quality

Disadvantage to analog signals

interference from other waves

Advantage of digital signals

Don't break down over time
not affected by interference
can send more information at a time
clearer and sharper images and sound

encode

method of preparing data for storage or transmission.

Analog examples

sound from an instrument

a record player

corded phone

Digital examples

cell phone

smart tv

gaming consoles