Device drivers are a set of software instructions that control the interface between a computer and a connected peripheral device. Device drivers tell your machine what the device is, what the device...
It's a piece of software that translates data between applications/programs and computer hardware. Typical computers have dozens of them. They provide a layer of abstraction that allows application...
Controller is part of the motherboard, for the devise, the driver runs the devise in the software end. Controller- allows the board to use devise. Driver- Allows windows to use devise.