meaning of write only

1. write-only code [a play on "read-only memory"] Code so arcane, complex, or ill-structured that it cannot be modified or even comprehended by anyone but its author, and possibly not even by him/her. A Bad Thing. [Jargon File] write-only language A language with syntax or semantics sufficiently dense and bizarre that any routine of significant size is automatically write-only code. A sobriquet applied occasionally to C and often to APL, though INTERCAL and TECO certainly deserve it more. write-only memory 1. humour> WOM The obvious antonym to "read-only memory" ROM. Out of frustration with the long and seemingly useless chain of approvals required of component specifications, during which no actual checking seemed to occur, an engineer at Signetics once created a specification for a write-only memory and included it with a bunch of other specifications to be approved. This inclusion came to the attention of Signetics management only when regular customers started calling and asking for pricing information. Signetics published a corrected edition of the data book and requested the return of the "erroneous" ones. Later, around 1974, Signetics bought a double-page spread in "Electronics" magazines April issue and used the spec as an April Fools Day joke. Instead of the more conventional characteristic curves, the 25120 "fully encoded, 9046 x N, Random Access, write-only-memory" data sheet included diagrams of "bit capacity vs. Temp. ", "Iff vs. Vff", "Number of pins remaining vs. number of socket insertions", and "AQL vs. selling price". The 25120 required a 6. 3 VAC VFF supply, a +10V VCC, and VDD of 0V, +/- 2%. 2. bit bucket. [Jargon File] write-through Or "write-thru" A cache architecture in which data is written to main memory at the same time as it is cached. Opposite of write-back. See also buffered write-through, posted write-through, no-write allocation.

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