rapid selector

rapid selector

[′rap·əd si′lek·tər]
(computer science)
A device which scans codes recorded on microfilm; microimages of the documents associated with the codes may also be recorded on the film.
References in periodicals archive ?
The other Memex: The tangled career of Vannevar Bush's information machine, the Rapid Selector.
Devices developed then included the Rapid Selector and the Comparator, with the story not a happy one as these machines failed.
Full browser ?