If a new device is attached to a computer, such as printer or scanner, its ______ must be installed before the device can be used 

Explanation: A Driver is a software program that allows the computer's operating system to communicate with a hardware device, such as a printer, scanner, or graphics card. Without the proper driver, the device will not function correctly. Drivers translate high-level commands into hardware-specific instructions. Why the Other Options Are Incorrect? Buffer – A temporary storage area, not related to installing a device. Pager – A memory management scheme, not related to hardware installation. Server – A computer that provides services to other computers, not relevant here. Final Answer: Driver