Binary is base 2 number system
Every binary number has 8 digits. Smallest digit is to the left, the largest is to the right. Binary can store numbers from 0 to 255 (256 numbers inclusive)
Binary Group Naming Conventions
- Bit: A single binary digit
- 4 Bits: A nibble
- 8 Bits: A byte
- 16 bits: A word
- 32 bits: A double word
- 64 bits: A paragraph or quad word
Byte Prefixes
These prefixes kilo, mega, etc, are not real uses of prefixes. kilo is 1000, not 1024, but as there was no previous convention for these numbers, computer scientists just approximated and said “close enough”, with 1024 ~ 1000 and 1048576 ~ 1000000.
- KB: 1024 bytes
- MB: 1048576 bytes
- GB: 1073741824 bytes
- TB: 109951162776 bytes
”Proper Byte Prefixes”
If you want to be precise about it, then these are conventions that nobody uses to describe these values
- 1 Kibi: 1024 bytes
- 1 Mebi: 1048576 bytes
- 1 Gibi: 1073741824 bytes
- 1 Tebi: 109951162776 bytes