Year 8 Binary pre-test

What is binary?

• A sequence of 1s and 0s

• The way a computer speaks

• A useless code that is no longer used

What kind of 'base' system is binary known as?

• Base 10

• Base 2

• Base 8

• Base 16

Why do computers use binary?

• It requires the least processing time

• People could only count this high when computers were invented

• It is the hardest code to hack

• It is just the code computers understand

Numbers, pictures, or words without context are known as?

• Data

• Information

• Communication

• Understanding

Data becomes information when it is given

• Human understanding

• More information

• Rules to interpret

• An answer

What is the key difference between data and information?

• Data is raw and unprocessed, information is the understanding applied to data

• They are the same

• They belong to different groups

What is the binary code for this image?

• 101000101

• 111000101

• 001000010

• 001111010