- Present participle of poll.
polling - Computer Definition
- A procedure by which a machine accesses a network, calls another machine, and downloads documents, files, or other data stored in the remote machine, commonly with security provided on the basis of a programmable poll code.
- A procedure by which a central computer controls network channel access by querying other computers or terminal devices to invite them to transmit data. Polling typically is in a predetermined query sequence, and the invitation is for transmission for a limited time, perhaps measured in milliseconds.
(1) A communications technique that determines when a terminal is ready to send data. The computer continually interrogates its connected terminals in a round robin sequence. If a terminal has data to send, it sends back an acknowledgment and the transmission begins. Contrast with an interrupt-driven system, in which the terminal generates a signal when it has data to send.
(2) A technique that continually interrogates a peripheral device to see if it has data to transfer. For example, if a mouse button was pressed or if data are available at a communications port. Contrast with event-driven or interrupt-driven techniques, in which the operating system generates a signal and interrupts the system.