Which of the following describes a driver?

• A. Browser plugin
• B. Software that tells the computer how to use specific devices
• C. Spyware
• D. Anti-virus software

Answer: (B)

A driver is best described as software that communicates with hardware devices, enabling the operating system and applications to interact with those devices effectively. The primary function of a driver is to provide the necessary instructions and control to the computer on how to properly utilize and manage hardware components, such as printers, graphics cards, and storage devices. Without drivers, the operating system would not be able to send or receive signals from the hardware, leading to dysfunction in the system's overall performance and usability.

In contrast, a browser plugin extends a web browser's capabilities but does not facilitate the interaction between hardware devices and the operating system. Spyware is software designed to gather sensitive information without the user's consent and poses a security risk rather than assisting with device management. Anti-virus software is focused on detecting and removing malicious software from the computer, rather than enabling device functionality. Therefore, the definition of a driver emphasizes its role in managing specific hardware devices, making the description provided the accurate choice.