Audience Response Systems
An audience response system (ARS), or personal response system (PRS), allows large groups of people to vote on a topic or answer a question. Each person has a device with which selections can be made. Each remote communicates with a computer via receivers located around the room or via a single receiver connected to the presenter's computer using a USB connector. After a set time – or after all participants have answered – the system ends the polling for that particular question and tabulates the results. Typically, the results are instantly made available to the participants via a bar graph displayed on the projector.
In situations where tracking is required, the serial number of each remote control or the students identity number is entered beforehand in the control computer's database. In this way the answer of each individual can later be identified.
In addition to the presenter's computer and projector, the typical audience response system has the following components:
- base station (receiver)
- wireless keypads (one for each participant)
- audience response system software
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