资料来源 : pyDict
异步的,异步
资料来源 : Webster's Revised Unabridged Dictionary (1913)
Asynchronous \A*syn"chro*nous\, a. [Gr. ? not + synchronous.]
Not simultaneous; not concurrent in time; -- opposed to
{synchronous}.
资料来源 : WordNet®
asynchronous
adj 1: (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 itself
[ant: {synchronous}]
2: not synchronous; not occurring or existing at the same time
or having the same period or phase [ant: {synchronous}]
资料来源 : Free On-Line Dictionary of Computing
asynchronous
Not synchronised by a shared signal such as
{clock} or {semaphore}, proceeding independently.
Opposite: {synchronous}.
1. 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. 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.
(1995-12-08)