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What is a BIT?
A bit is a binary digit; i.e., a 0 or 1.
Everything is stored on the computer in units of bits.
Because most data communications is serial in nature, most data communication and networking services indicate capacity in unit of bits per second; e.g., Ethernet operates at 10 million bits/sec (Mbps).
Some communication schemes, such as Fibre Channel, are parallel and describe capacity in terms of bytes/sec. but that is less common.
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