Are the device drivers that provide the interface to i/o hardware.

"Special Files" are the device drivers that provide the interface to I/O hardware.

Once the twisted pair cable is connected and a network is established the led lights at the back of the computer should be steady. on most ethernet adapters nowadays, a steady green light means that the connection is actively connected to a valid partner at the opposite end. if the status of the led starts flashing, this means that there’s some activity and data is being transferred.

Answercloud computing;