Units of storage: Computer Science OCR: GCSE (9:1)

bit

A single binary digit (a zero or a one) written with a lower case b

nibble

A group of 4 binary digits or half a byte

Byte

A group of 8 binary digits or two nibbles, it can hold 256 unique values

Kilobyte

Full name of the unit that represents 1000 bytes

Megabyte

1000 Kilobytes, or 1 million bytes, its full name

Gigabyte

1000 Megabytes, or 1 billion bytes, the full name

Terabyte

1000 Gigabytes, or a million Megabytes, in full

Petabyte

1000 Terabytes, or a million Gigabytes, the long name

KB

Abbreviation for the unit that means 1000 bytes

MB

Two-letter abbreviation for Megabyte

GB

A billion bytes, abbreviated to two letters

TB

A thousand GB is which unit, shortened to two letters?

PB

A Petabyte in two letters

64

The number of bits in 8 bytes

256

The maximum number of different values we can store in a Byte

500KB

Number of KB in 0.5MB

2000GB

Number of GB in a hard drive with a capacity of 2TB

8000

Number of bits in a text file of 1KB

24 million

Number of bits in an image file of 3MB (write as "x million")

3GB

Space needed on your hard drive for six videos of 500MB each, in GB