Revision Quiz - A level

Convert 101010 from unsigned binary to hexadecimal

• 27

• 28

• 29

• 2A

Convert 1010101001 from unsigned binary to hexadecimal.

• 2A9

• 2B0

• 2B6

• 2BB

Binary 1110

Hex = ?

• 14

• F

• 15

• E

Convert 25F₍₁₆₎ into decimal

• 607
• 351
• 40
• 265

The lowest level program that a computer understands is called...

• Machine Code

• Assembly Language

• Scratch

• Natural Language

How Bits are there in a Byte?

• 8
• 10
• 2
• 9

Convert 1111 1111₂ to decimal

• 255

• 245

• 235

• 225

Convert the binary number 10101010 to Hex

• AA

• BB

• CC

• DD

The greater the frequency, the..... (pick two)

• lower the accuracy

• lower the file size

• greater the accuracy

• greater the file size

the more bits used per sample enables the height of the wave...

• to be more accurately measured

• to be less accurately measured

• increases file size

• decreases file size