What is a bit?

Definition
bit

A bit is the smallest unit of digital information, representing a single binary value of 0 or 1.

Unit system
Decimal
All data units
UnitSymbolSystem
bits bit Decimal
bytes B Decimal
kilobytes KB Decimal
megabytes MB Decimal
gigabytes GB Decimal
terabytes TB Decimal
petabytes PB Decimal
kibibytes KiB Binary
mebibytes MiB Binary
gibibytes GiB Binary
tebibytes TiB Binary
pebibytes PiB Binary