Hexadecimal
/hek-sə-ˈdes-məl/
noun — “base sixteen, where digits stop behaving and letters get promoted.”
Hexadecimal is a positional number system with base 16, widely used in computing as a compact representation of binary data. Each digit represents four bits, allowing long binary sequences to be expressed in a shorter, more readable form using symbols 0–9 and A–F.
Hex
/heks/
noun — “six things bundled together, or a number system that looks like it belongs in a spellbook but is actually just base sixteen.”
Hex has two common meanings in hacker slang. The first is a shorthand for hexadecimal, the base-16 numbering system used extensively in computing. The second is a casual grouping term meaning a set of six items, similar in spirit to quad as a four-pack.
Dynner
/din'r/
noun — “a quantity of data large enough to stop nibbling and start committing.”
[by analogy with nybble and Byte]
Dynner is hacker jargon for a quantity of 32 bits. The name extends a long-running tradition of food-themed computing units: if a nybble is a small snack and a byte is a bite, then eventually someone looked at a larger data quantity and decided the only logical progression was dinner.
Deckle
/dek'l/
noun — “two nickels pretending to be a word size.”
[from dec- and nickle]
Deckle is hacker jargon for a quantity of 10 bits, formed by combining two nickles (where a nickle represents 5 bits). Like its smaller relative, the term emerged not from formal standards but from developers trying to describe unusual hardware layouts that did not fit neatly into the byte-oriented vocabulary that later became dominant.
Crumb
/krəm/
noun — “barely enough information to leave a trail.”
Crumb is hacker jargon for a quantity of 2 binary digits—that is, 2 bits. It occupies an awkward but oddly charming place between a single Bit and a nybble, making it larger than the smallest practical unit while still feeling too tiny to deserve serious measurement.
Numerically:
bit
/bit/
noun — “the smallest useful piece of information… and occasionally the smallest useful thought.”
[from the mainstream word and Binary digIT]
Bit is the fundamental unit of information in computing. At the technical level, a bit represents a quantity that can exist in one of two possible states. Those states are commonly expressed as 0 and 1, but may also represent true and false, on and off, yes and no, or any other pair of mutually exclusive outcomes.