OS Device Controllers

The input/output units consists of the following two parts:

  • Mechanical component
  • Electronic component (device controller)

Basically, device controllers are the electronic components of input/output units.

Device controller can also called as adapter.

The mechanical component of the input/output unit is the device itself whereas the electronic component or device controller or adapter takes the form of a printed circuit card that can be inserted into an expansion slot.

Usually, the controller card has a connector on it, just to help in plugging the cable leading to the device controllers can handle many identical devices.

Operating System Online Test

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