asynchronous


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Related to asynchronous: Asynchronous transmission, Asynchronous learning, Asynchronous communication

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 ?
Asynchronous learning: Technology and pedagogical strategy in a distance learning course.
Web-based instruction, the entire course is asynchronous in nature and delivered on demand.
Because asynchronous methods involve no real-time interaction, they provide a flexible, convenient way of learning.
The CY62192ESL 128-Mbit, CY62182ESL 64-Mbit and CY62172ESL 32-Mbit Low-Power Asynchronous SRAMs are currently sampling in limited quantities to lead customers, and full qualification of the devices is in progress.
In online asynchronous courses, instructors must realize that their quizzes/tests are potentially open-book unless they have students take quizzes/tests in proctored computer laboratories.
For asynchronous mirroring, the source and target devices do not have to synchronize their writes and the second and subsequent writes occur independently.
The Global Asynchronous Motor Industry Report 2015 is a professional and in-depth study on the current state of the asynchronous motor industry.
Among the topics are optimal and heuristic scheduling algorithms for asynchronous high-level synthesis, synchronizer performance in deep sub-micron technology, improving the dependability and performance of fully asynchronous on-chip networks, and a novel power delivery method for asynchronous loads in energy harvesting.
This stand is composed of the following elements: a static frequency converter that supplies a three-phase asynchronous motor, a tachymeter for rpm measurement a central unit and monitor for control and monitoring, and a single-phase synchronous generator for loading the three-phase asynchronous motor.
present a guide to asynchronous design in the area of very-large-scale-integration (VLSI) and its use to create low power, high performance, low electromagnetic emissions, and easily-used circuits, as an alternative to conventional synchronous design.
We develop a qualitative analysis of asynchronous forum of several e-learning courses identifying sequences or moves of teaching discourse.
With asynchronous replication, the secondary data lags behind the primary data since data is only replicated periodically to the secondary storage.