asinkron

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asynchronous
Not synchronous; occurring at different times
not synchronous; not occurring or existing at the same time or having the same period or phase (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
allowing the client to continue during a processing
A transmission method in which information is transferred one discrete character at a time and is delineated by a start and stop indicator at the beginning and end of the character The opposite of asynchronous is SYNCHRONOUS transmission
Asynchronous transmission An approach for acquiring synchronisation on a per byte basis Start and stop bits are used as delimiters Asynchronous transfer An efficient approach for transmitting information where time slots are used on a demand basis (e g ATDM, ATM) rather than on a periodical basis (e g TDM, STM)
Asynchronous activities are time independent Thus Chat is not asynchronous unlike E-mail and Conferencing communication which can happen over a period of time
A method of data transfer in which the device cannot proceed to the next block of data until it has received positive acknowledgment that the other device received the block correctly See Also: synchronous
Not synchronous; not aligned in time Digital logic systems in which signal changes are not related to an overall clock Also RS-232 and similar "serial port" signals, in which byte or character values are transferred bit-by-bit in bit-serial format Since digital signals require both proper logic levels and proper timing to sense those levels, timing is established by the leading edge of a "start bit" sent at the start of each data byte
Asynchronous sockets are a refinement of non-blocking sockets, enabled with the WSAAsyncSelect() call Whenever a call returns WSAEWOULDBLOCK, Winsock promises to send your program a window message when it's safe to try the call again, or when it has completed the request This allows your program to go about its business until Winsock manages to complete the requested function Asynchronous calls allow you to decouple the rest of your program from the network portions, so that a network fault or delay does not unduly impact your program's performance Compare blocking See also this example program to see how to use asynchronous sockets
Not occuring at the same time In online courses, asynchronous refers to communication that occurs at different times Common examples of asynchronous communications are e-mail, ListProc, or the WebCT Discussions tool People can communicate at different times by sending, reading, and replying to messages or discussions
A process that can occur at any time, regardless of the status of the operating system or applications that are running An example is Windows NT's asynchronous procedure call (APC)
(n ) A method of transmission which does not require a common clock, but separates fields of data by stop and start bits See also synchronous
A method of transmitting data in which the data elements are identified with special start and stop characters An asynchronous modem cannot communicate with a synchronous modem Compare with Synchronous (e g standard Hayes compatible modem)
Refers to processes that proceed independently of each other until one process needs to "interrupt" the other process with a request Using the client- server model, the server handles many asynchronous requests from its many clients The client is often able to proceed with other work or must wait on the service requested from the server
(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
Not simultaneous; not concurrent in time; opposed to synchronous
Loosely coupled, occurring at different times In asynchronous messaging, a message is sent, and the reply is received some time later as a separate transaction
A form of concurrent input and output communication transmission with no timing relationship between the two signals Slower-speed asynchronous transmission requires start and stop bits to avoid a dependency on timing clocks (10 bits to send on 8-bit byte) (Contrast with Synchronous)
Transmission where sending and receiving devices are not synchronized Data must carry signals to indicate data division
the transmission and receipt of a message do not occur simultaneously; thus this does not require a dedicated link between two points; see also synchronous Asynchrone
asinkron