Two-way communication in which there is a time delay between a message being sent and received.

A method of data transmission in which the receiving and sending devices don't share a common timer and no timing data is transmitted.

Communication which ocurs intermittently, not in "real time". E-mail is an asynchronous means of communication.

A method of communication, as used in email, which sends and receives messages over a time period.

Two-way communication in which there can be a time delay between when a message is sent and when it is received.

n. A method of communication supported by the operating system that allows an exchange of data with a remote device, using either a start-stop line or an X.25 line. Asynchronous communication includes the file transfer support and the interactive terminal facility support.

the opposite of synchronous or direct communication where all parties involved must be present (eg a phone conversation). Asynchronous communication includes emails, text messaging and online discussion boards.

Interaction between two or more people that is time delayed, that is, separated by minutes, hours, even days. Correspondence courses and e-mail are asynchronous forms of distance learning. technical

A way of transmitting data serially from one device to another, in which each transmitted character is preceded by a start bit and followed by a stop bit. This is also called start/stop transmission.

Two-way, "non-synchronous' communication that involves a time delay between the transmission and receipt of a message (e.g., e-mail and voice messaging).

computer-mediated communications which take place at different times

A data communications method in which bits are sent without using a clock signal for synchronization. Instead, each character is transmitted surrounded by a start and stop bit that designates the beginning and ending points of the information. This as opposed to synchronous communication where blocks of data are transmitted using a synchronizing clock.

Communication where the sender and receiver don't participate at the same time, for example, email or voicemail.

communication in which the sending process can proceed as soon as the message has been sent out to a buffer

a message is composed and then transmitted in a completed form; it can be accessed by its recipient(s) at any time afterwards (e.g. email, electronic conferencing)

Asynchronous communication occurs independent of time or location. Participants send messages to a central location (discussion forum) where they are saved for later retrieval by other participants. E-mail is an example of asynchronous communication.

means "not at the same time." Typified by the use of e-mail or discussion groups as a mode of communication. In other words, participants communicate intermittently and not specifically at regular times or continuously. This is the primary means of communication used for distance learning at Empire State College.

This is a kind of electronic communication that does not require users to be online together, for example email and discussion boards. Messages are stored, to be accessed by users when they are online.

Delayed communication between the sender and the receiver (for example, an email might be sent at 2.00pm and not opened until 5.00pm).  Can also be done in an online discussion group.()

Communication that occurs at different times, in contrast to Synchronous communication. Examples: email, some conferencing systems, bulletin boards.

A method of data transmission in which bits or characters are sent at irregular intervals and spaced by start and stop bits rather than by time.

Digital communication (as between computers) in which there is no timing requirement for transmission and in which the start of each character is individually signaled by the transmitting device.

an electronic communication method in which data is sent one character and one direction at a time, most commonly used in a PC environment.

Online discussions occurring independent of time or location (often, "anytime, anywhere"). Participants send messages to a central location (discussion forum) where they are archived for later retrieval from other participants. An example of asynchronous communication is email.

A mode of communication between two parties, when the exchange does not require both to be active participant in the conversation at the same time e.g. sending a letter. See also: Synchronous communication, Isochronous communication E-mail.

Also referred to as start/stop transmission. Every character transmitted has special bits attached, telling the receiving device when the data begins and ends. Data is transmitted independently with no associated clock. See also Synchronous communication.

Communication between computers at irregular intervals. To handle this kind of communication, the modem adds start and stop bits to each character it sends. The start bit lets the receiving computer know when a new character has started. The stop bit indicates the end of the character.

Communication of a message that is not sent and received at the same time, such as email or postings on bulletin boards.

Not in real time, not live; communication that does not happen at the time of speaking (e.g. email).

This method of transferring data does so without a specific timing mechanism between the two communicating parties. The party receiving data is not expecting more data at any set interval

Transmission in which each data character is individually synchronised, usually by the use of start and stop bits.

Often called start/stop transmission, a way of transmitting data in which each character is preceded by a start bit and followed by a stop bit.

Communication where the sender is able to send data at any time, and with any time gaps the sender desires.

Communication that occurs at different times, between two or more individuals, in contrast to Synchronous communication. For e.g. e-mails, some conferencing systems, bulletin boards.

Communication in which data can be transmitted intermittently rather than in a steady stream. For example, a telephone conversation is asynchronous because both parties can talk whenever they like.

A mode of communication between two or more parties in which the exchange does not require the parties to participate at the same time.

Communication that takes place either when communication between participants occurs at different times. Participants often are also in different locations. Contrasted with synchronous communication.

Non-synchronous, two-way communication in which there is a delay between when a message is sent and when it is actually received. In distance learning, asynchronous communication most often take the form of email (e.g. your professor emails you with feedback on an assignment), voicemail (e.g. you leave a message for your professor on his/her office phone), and discussion boards (e.g. you post a reply to a classmate's question in a threaded class discussion.)

A communications protocol where transmission of data does not rely on an independent timing signal. In this mode, the communicating devices are free to send data in a continuous stream whenever both devices are ready. Most PCs operate in this mode.

Data transmission in which the length of time between transmitted characters may vary. Timing is dependent on the actual time for the transfer to take place, as opposed to synchronous communication, which is timed by an external clock signal. Because the receiving modem must be signaled about when the data bits of a character begin and end, start and stop bits are added to each character.

Electronic communication involving messages that are sent and received at different times. E-mail is an example of asynchronous communication.

A form of data transmission in which information is sent and received at irregular intervals, one character at a time. Because data is received at irregular intervals, the receiving modem must be signaled to let it know when the data bits of a character begin and end. This is done by means of start and stop bits. See also: modem (modulator/demodulator)

Asynchronous communication is the sending of data blocks, for example symbols, characters or data packets, at any point in time, using variable time interval separating the transmission of the blocks. The most significant aspect of asynchronous communications is variable bit rate, or that the transmitter and receiver clock generators do not have to be exactly synchronized.