Why data must be stored in binary format

How data needs to be converted into a binary format to be processed by a computer

text file size = bits per character x number of characters

2.3: Data Units

Exam Board:
OCR

Specification:
2020

All data in a computer system is made up of bits.

A single bit is a 0 or a 1.

This page is still being updated.

Units of Data Storage

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All data in a computer system is made up of bits.

A single bit is a 0 or a 1.

4 bits (such as 0101 or 1101) is called a nibble.

1,000 bytes is called a kilobyte.

A kilobyte can store a short email.

A

8 bits is called a byte.

 

A byte can store a single character.

1,000 kilobytes is called a megabyte.

A megabyte can store about a minute of music.

1,000 megabytes is called a gigabyte.

A gigabyte can store about 500 photos.

1,000 terabytes is called a petabyte.

A petabyte can store about 1.5 million CDs.

1,000 gigabytes is called a terabyte.

A terabyte can store about 500 hours of films.

More data storage units:

1,000 petabytes is called a exabyte.

1,000 exabytes is called a zettabyte.

1,000 zettabytes is called a yottabyte.

Questo's Questions

2.3 - Data Units:

3. Put the following data storage units in order from smallest to largest: 

  • a. kilobyte - gigabyte - byte - megabyte - nibble - bit [3]

  • b. gigabyte - petabyte - kilobyte - byte - terabyte - megabyte [3]