Test Yourself:

Decide for yourself while reading this post if you can figure out which concepts or objects are digital – fixed number of possibilities – or not digital (analog) – infinite number of possibilities.

To test yourself, cover up the right side text of this blog.

Smart Phone

Smart Phone

Starting off easy; The smart phone is obviously digital as it converts your voice, image, and data into numerical fixed numbers of 1’s and 0’s.

51,200 Year Old Cave Painting

51,200 Year Old Cave Painting

Another easy one – Kind of. The physical cave drawing which is the oldest painting ever found in the world is an analog object. However, the version of this online is digital because it is fixed into values that can be copied and shared.

USB Drive

USB Drive

Digital – The USB drive stores information as 1’s and 0’s and holds a fixed number of possibilites the information inside can be. 

Vinyl

Vinyl Record

This is an analog item as it has an infinite number of ways the noise is transmitted into the surrounding space. This physical disk uses different shaped grooves to produce and then amplify the sound. 

Printed QR Code

Printed QR Code

This was honestly a trick question. The physical printed sheet is an analog object that is subject to changing overtime. However, the information that this print holds encodes digital data with a fixed number of outcomes. 

Did you go five for five?