Device driver

From Saferpedia

In computers, a driver for a device or a software driver is a computer program allowing other computer programs to interact with computer's hardware components.

Drivers usually communicate with devices trough computer's data bus or communication sub-systems the hardware component connects to. When a pending program invokes a driver routine this sends the command to the device. Once the device sends data back to driver this can invoke routines in the original program. Drivers are dependent of computer's components and the OS' specific.

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