Digital and Analog Signals

By: Brie-Ann and Gaby

The Differences

In analog technology is when a wave is recorded or used in its original form. In digital technology the analog wave is sampled at some interval, and then turned into numbers that are stored in the digital device.

Analog Signals

Representation of an analog waveform, infinite resolution. Detects electric noise and distortion introduced by communication channels and signal processing operations.

Digital Signals

Refers to an electrical signal that is converted into pattern of bits.


a. When is this signal used? To play music, watch television

b. Where is this signal used? When humans use any technology

c. Why is this signal used? It has better sound than analog

d. For what is this signal used? To hear sounds

e. Who uses this signal? Everyone with technology


"Analog vs. Digital." Learn at SparkFun Electronics. N.p., n.d. Web. 10 May 2016.

"Analog vs Digital." - Difference and Comparison. N.p., n.d. Web. 12 May 2016.

"Analog vs. Digital." Howstuffworks. N.p., n.d. Web


Digital- Can't stop the Feeling Justin Timberlake

Analog- Frank Croxton Christmas songs