controller

An adapter card, RAID controller, or other module that interprets signals between a host and a eripheral device.

An electronic circuit board or system in a computer that allows the computer to use various peripheral devices, for example, a disk controller or Ethernet controller.

In an automated radio, the device that commands the radio transmitter and receiver, and that performs processes, such as automatic link establishment, channel scanning and selection, link quality analysis, polling, sounding, message store and forward, address protection, and anti-spoofing.