资料来源 : Free On-Line Dictionary of Computing

write-only memory
     
        1.  (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" magazine's 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}]