Asynchronous I/O

Under asynchronous communication is understood in the computer science and network technology, a mode of communication, in which the sending and receiving data with a time delay and without blocking the process by, for example, waiting for the response of the receiver ( as in synchronous communication the case) takes place.

The asynchronous communication is not to be confused with the concept of asynchronous data transfer; This refers to media access method.

Examples of asynchronous communication between people are

  • E -mail and SMS conversations,
  • Newsletters or mailing lists, and
  • Posts in discussion forums or newsgroups.

Many groupware systems have proprietary services for sending and receiving messages.

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