Bit is an electronic signal that denotes a zero or a one; the smallest unit of representation in a computer. It is the smallest unit of data in a computer. It is represented by a 1 (to indicate the presence of an electronic signal) or a 0 (to indicate the absence of an electronic signal).

Webster Dictionary Meaning

1. Bit
- imp. & p. p. of Bite.
- 3d sing. pr. of Bid, for biddeth.
- of Bite
2. Bit
- of Bite
3. Bit
- The part of a bridle, usually of iron, which is inserted in the mouth of a horse, and having appendages to which the reins are fastened.
- Fig.: Anything which curbs or restrains.
- A part of anything, such as may be bitten off or taken into the mouth; a morsel; a bite. Hence: A small piece of anything; a little; a mite.
- Somewhat; something, but not very great.
- A tool for boring, of various forms and sizes, usually turned by means of a brace or bitstock. See Bitstock.
- The part of a key which enters the lock and acts upon the bolt and tumblers.
- The cutting iron of a plane.
- In the Southern and Southwestern States, a small silver coin (as the real) formerly current; commonly, one worth about 12 1/2 cents; also, the sum of 12 1/2 cents.
4. Bit
- To put a bridle upon; to put the bit in the mouth of.
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