释义 |
asynchronous
a·syn·chro·nism A0490300 (ā-sĭng′krə-nĭz′əm) or a·syn·chron·y (-krə-nē)n. Lack of temporal concurrence; absence of synchronism. a·syn′chro·nous (-nəs) adj.a·syn′chro·nous·ly adv.a•syn•chro•nous (eɪˈsɪŋ krə nəs) adj. 1. not occurring at the same time. 2. (of a computer or other electronic device) beginning each operation only after finishing the preceding one. [1740–50] a•syn′chro•nous•ly, adv. ThesaurusAdj. | 1. | asynchronous - (digital communication) pertaining to a transmission technique that does not require a common clock between the communicating devices; timing signals are derived from special characters in the data stream itselfsynchronous - (digital communication) pertaining to a transmission technique that requires a common clock signal (a timing reference) between the communicating devices in order to coordinate their transmissions | | 2. | asynchronous - not synchronous; not occurring or existing at the same time or having the same period or phasesynchronal, synchronic, synchronous - occurring or existing at the same time or having the same period or phase; "recovery was synchronous with therapy"- Jour.A.M.A.; "a synchronous set of clocks"; "the synchronous action of a bird's wings in flight"; "synchronous oscillations" | Translationsasynchronous
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 asclock or semaphore, proceeding independently.
Opposite: synchronous.
1. A process in a multitasking systemwhose execution can proceed independently, "in thebackground". Other processes may be started before theasynchronous process has finished.
2. A communications system in which datatransmission may start at any time and is indicated by astart bit, e.g. EIA-232. A data byte (or other elementdefined by the protocol) ends with a stop bit. Acontinuous marking condition (identical to stop bits but notquantized in time), is then maintained until data resumes.asynchronousEvents 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.asynchronous
asynchronous [a-sing´kro-nus] 1. pertaining to asynchronism.2. in pacing" >cardiac pacing terminology, said of a pacemaker that cannot sense any spontaneous underlying cardiac electrical activity, so that pacing is done at a fixed, constant rate.asynchronism (ā″sing′krŏ-nizm) [ ¹an- + synchronism] 1. The failure of events to occur in time with each other as they usually do.2. Incoordination. asynchronous (-nŭs), adjectiveAsynchronous
Asynchronous1. In computing, describing a process that occurs independently of other processes.
2. In telecommunications, describing two signals within a network or between two networks that are sent at different times.
3. More generally, describing two or more events that occur at a different time or something that occurs at the wrong time.See ASYN See ASYNasynchronous Related to asynchronous: Asynchronous transmission, Asynchronous learning, Asynchronous communicationAntonyms for asynchronousadj (digital communication) pertaining to a transmission technique that does not require a common clock between the communicating devicesAntonymsadj not synchronousAntonyms- synchronal
- synchronic
- synchronous
|