Data storage

Question - how do we measure data storage and file size?

Humans are familiar with the metric number system.

For example, if we have 1000grams of sugar, we will say there is 1 kilogram of sugar.

Similarly, if an image needs 1000 bytes to store it, we will say that 1 kilobyte of storage is required.

1000 kilobytes is a megabyte.

1000 megabytes is a terabyte.

Here is a table detailing storage quantity for data using the metric system:

bytes	metric term
1000	kilobyte	1000 bytes	103
1000000	megabyte	1000 kilobytes	106
1000000000	gigabyte	1000 megabytes	109
1000000000000	terabyte	1000 gigabytes	1012
1000000000000000	petabyte	1000 terabytes	1015
1000000000000000000	exabyte	1000 petabytes	1018

bytes	binary term
1024	kibibyte	1024 bytes	210
1048576	mebibyte	1024 kibibyes	220
1073741824	gibibyte	1024 mebibytes	230
1099511627776	tebibyte	1024 gibibytes	240
1125899906842624	pebibyte	1024 tebibytes	250
1152921504606846976	exbibyte	1024 pebibytes	260

A Kilobyte is 1000 bytes. A Kibibyte is 1024 bytes.

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