Computer systems measure data using binary which is a number system that uses 1s and 0s.
Bits, nibbles and bytes can be used to show larger binary values:
Term | Definition | Example |
Bit | 1 Bit | 0 or 1 |
Nibble | 4 Bits | 1010 |
Byte | 8 Bits | 10101010 |
Metric measurements use the prefix 'o or a', e.g. kilobyte and represents 10 to the power.
Binary measurements use the prefix 'bi', e.g. kibibyte and represents 2 to the power.
Number | Units | Number of Bytes |
1000 | Kilobyte (KB) – Metric (10^3) | 1000 Bytes |
1024 | Kibibyte (KiB) – Binary (2^10) | 1024 Bytes |
10002 | Megabyte (MB) _ Metric (10^6) | 1000 * 1000 = 1000000 Bytes |
10242 | Mebibyte (MiB) – Binary (2^20) | 1024 * 1024 = 1048576 Bytes |
1000^3 | Gigabytes (GB) - Binary (10^9) | 1000*1000*1000 = 1000000000 Bytes |
1024^3 | Gibibytes (GiB) - Binary (2^30) | 1024* 1024* 1024 = 1073741824 Bytes |
1000^4 | Terabytes (TB) - Binary (10^12) | 1000* 1000* 1000* 1000 = 1000000000000 Bytes |
1024^4 | Tebibytes (TiB) - Binary (2^40) | 1024* 1024* 1024*1024 = 1099511627776 Bytes |
1000^5 | Petabytes (PB) - Binary (10^15) | 1000* 1000* 1000* 1000*1000 = 1000000000000000 Bytes |
1024^5 | Pebibytes (PiB) - Binary (2^50) | 1024* 1024* 1024*1024*1024 = 1125899906842624 Bytes |
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