CS Edexcel 2.1a Unsigned Binary Numbers

In binary, what does the number 2 look like?

• 10

• 01

• 11

• 00

What is a nibble?

• 4 bits

• 8 bits

• Half a byte

• 1 byte

How many bits are there in a byte?

• 4

• 8

• 16

• 32

What is the value of 1010 in decimal (denary)?

• 14

• 12

• 8

• 10

Reorder the following data sizes smallest to largest

• Mebibyte

• Megabyte

• Kilobyte

• Kibibyte

• Byte

Standard positive binary numbers 0-255 are​ (a)  

• unsigned
• signed

Which of the following can be represented in binary?

• Only numbers

• Sound

• Images

• Text

What is a kilobyte equivalent to in bytes?

• 2048

• 1024

• 512

• 1000

What is a terabyte equivalent to in bytes?

• 1 billion bytes

• 1000 megabytes

• 1 trillion bytes

• 1000 gigabytes

Convert the following binary nibble into denary:

1101

(a)