selector

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selector

[si′lek·tər]
(civil engineering)
A device that automatically connects the appropriate railroad signal to control the track selected.
(computer science)
Computer device which interrogates a condition and initiates a particular operation dependent upon the report.
(electricity)
An automatic or other device for making connections to any one of a number of circuits, such as a selector relay or selector switch.
(engineering)
A device for selecting objects or materials according to predetermined properties.
A device for starting or stopping at predetermined positions.
(mechanical engineering)
The part of the gearshift in an automotive transmission that selects the required gearshift bar.
The lever with which a driver operates an automatic gearshift.
(metallurgy)
A converter that separates purified copper from residue in a single operation.

Selector

 

an electromechanical device for the reception of calls in a selective telephone communication system. Selectors have been used predominantly in railroad systems. The call signal of a subscriber consists of a code, or series of electric pulses. The selector is tuned to a certain coded combination of pulses and operates—for example, rings a bell—only when the corresponding call signal is transmitted through the telephone line. In the 1960’s selector systems were supplanted by improved systems based on harmonic selective ringing. [23-S75–2]

selector

(programming)
1. In Smalltalk or Objective C, the syntax of a message which selects a particular method in the target object.

2. An operation that returns the state of an object but does not alter that state. Selector functions or methods often have names which begin with "get" and corresponding modifier methods or procedures whose names begin with "set".
References in periodicals archive ?
Thanks to Basler's sophisticated new Lens Selector, users can quickly and easily identify a suitable lens with the right focal length for their camera application.
The selector also said that how could Zakir, who has played two Tests, and Akram, who has played only nine, and were under-achievers take such a decision regarding Younus, who has played 89 Tests, 253 ODIs and 25 T20Is for Pakistan besides leading the country to the World Twenty20 title in 2009.
Tendulkar, who has scored close to 16,000 runs in Test cricket and 100 centuries in international cricket, has had a lean run over the last couple of years and critics have often asked him to hang up his boots before selectors are forced to show him the door.
Misbah who captains the one-day squad wanted Afridi in the squad at the cost of Umar Akmal but the selectors rejected his suggestion," one source said.
Why is it not, therefore, obligatory for selectors to be present there, at least from the semi-finals?
The release of these new product selectors are being offered for free and can be used by our partner's websites to help customers and sales representatives get easier access to Tripp Lite products and solutions," said Vipin Sharma, vice president, EMEA and India Sales, Tripp Lite.
As the first and only group of its kind, the Site Selectors Guild brings together a network of site selectors from around the world, pooling their talent and expertise to create an invaluable resource, unmatched in its quality, for both corporations seeking site selection assistance and EDOs seeking professional networking opportunity with location influencers.
And now that Greg Chappell has been appointed as a fulltime selector in his new role as national talent manager, Cricket Australia will release one of their panellists in the next 24 hours.
The former Nottinghamshire batsman will now spend the rest of the season on loan at Surrey, where he hopes to regain his form and convince the selectors that he deserves a place in Andrew Strauss' starting XI for the Ashes.
Mohsin said the selectors had got a good chance to closely assess the performances of new and senior players in the Tests held so far in England.
Sources said after the touring squad was announced Jaffer had complained to a member of the PCB governing council that the other selectors were not consulted while finalising the squad.
Asda is introducing in-store touchscreen wine selectors to help demystify the category for shoppers.