Sen: The CPU and Binary

The CPU has billions of switches and speaks...

• Binary

• Hexadecimal

• Denary

• CSS

There are how many bits in a byte?

• 7

• 10

• 5

• 8

The binary number 111 is what in denary

• 3

• 11

• 7

• 5

The denary number 15 is which of these in binary?

• 1111

• 1011

• 1001

• 1101

If I want to allocate a UNIQUE number to 27 items how many bits would I need

• 3

• 4

• 5

• 6

The binary system used to represent keyboard characters is called

• ASCII

• ASKey

• ASKI

• ASSKI

If a binary number ends in 0 it must be

• an odd number

• an even number

• a prime number

• a single digit

If I have seven ones in a binary number and a zero on the left i.e. 01111111....What is this worth in base 10

• 117

• 127

• 107

• 255

The number 63 can be expressed as how many 1s in binary

• 5 ones 11111

• 4 ones 1111

• 6 0nes 111111

• 7 ones 1111111

When we mix colors digitally it does not give the same color we get when mixing paint...why?

• We are mixing bits and there can be only 1 or 0

• We are mixing light so colors get brighter not darker like paint

• Digital colour is made of pixels

• None of these