asynchronous

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asynchronous

[ā′siŋ·krə·nəs]
(computer science)
Operating at a speed determined by the circuit functions rather than by timing signals.
(physics)
Not synchronous.

asynchronous

(architecture)
Not synchronised by a shared signal such as clock or semaphore, proceeding independently.

Opposite: synchronous.

1. <operating system> A process in a multitasking system whose execution can proceed independently, "in the background". Other processes may be started before the asynchronous process has finished.

2. <communications> A communications system in which data transmission may start at any time and is indicated by a start bit, e.g. EIA-232. A data byte (or other element defined by the protocol) ends with a stop bit. A continuous marking condition (identical to stop bits but not quantized in time), is then maintained until data resumes.

asynchronous

Events that are not synchronized or coordinated in time. All the following are asynchronous operations. The interval between transmitting A and B is not the same as between B and C. The ability to initiate a transmission at either end. Storing and forwarding messages. Starting the next operation before the current one is completed. Contrast with synchronous.
References in periodicals archive ?
In it Dinshaw explores the asynchrony of Hope Emily Allen, the amateur whose work with medieval texts brought The Book of Margery Kempe into the twentieth century.
The observation in the scanning electron microscope allowed to corroborate the initial development the proembryos as well as their frequency and asynchrony.
Another hypothesis that may explain the asynchrony in reproductive timing among sizes is that young females skip spawning events.
Before hatchlings moved long distances, they tended to remain near nests for extended periods of time, and demonstrated asynchrony in permanent departure.
11,23,24) Tassaux and colleagues demonstrated improvement in patient-ventilator interaction and reduction in signs of asynchrony with ASV compared with synchronised intermittent mandatory ventilation (SIMV) and pressure-support ventilation (PS) in patients during early weaning with partial ventilator support.
when the timing of first flowering or flowering duration show asynchrony as a response to changing environmental constraints (Elzinga et al.
Thus, conditions requisite for reentry are present: dual pathways, slowing and asynchrony of conduction, unidirectional block, and recovery of excitability.
Onset of incubation during egg laying results in developmental asynchrony of embryos but may help to maintain viability of early-laid eggs.
2009 mobilization and (20) criteria for limiting therapy sessions are well defined * 1 desaturation * Study supports that <80% early PT/OT is safe and the primary event limiting patient participation in PT/OT was patient-ventilator asynchrony * 1 radial artery line removed * PT/OT was discontinued during 19 sessions (4%) for perceived patient-ventilator asynchrony Overall, no adverse medical consequences Pohlman MC.
The concepts of space and historical asynchrony also gain significance in the author's argument.
Next, Kinaki is shown lying in bed, her T-shirt no longer blood-stained--does this suggest temporal asynchrony, or that it's all a dream?