Year 10 Revision Quiz

What is 18 in binary?

What is 111 in decimal

What is A in decimal

What is A in binary?

Why is hexadecimal used in computing?

• It is faster

• It is easier for humans to read

• It takes up less space

• It's amazing

Why is binary used in computing?

• Computers use transistors which are either 1 or 2

• Computers use transistors which are either 0 or 1

• Computers use wires which are either 2 or 3

• Computers use flops which are either flip or flap

An image is 300*400. How many pixels are there?

What is lossy compression?

• Data is lost forever

• Data is lost temporarily

• Data is not lost

• Data is gained

Which is true of lossless compression?

• Data is lost forever

• Data is lost temporarily

• Data is lost for a bit

• Data is not lost

What is a sound 'sample'?

• A snapshot of the sound converted to digital

• A snapshot of the sound converted to analogue

• a byte of sound

• a bit of sound