What does Plug and Play technology allow a user to do?

Plug and Play technology simplifies the process of connecting and using peripheral devices with a computer. The correct answer highlights its key feature: the ability to connect devices without the need for manual installation of drivers. When a Plug and Play device is connected to a computer, the operating system recognizes it automatically and loads the necessary drivers, allowing the user to start using the device immediately without additional configuration.

This ease of use is particularly advantageous for non-technical users, as it significantly reduces the complexity traditionally associated with hardware installation. Devices like USB flash drives, keyboards, and mice are designed to utilize this technology, making it more accessible for everyday tasks.

In contrast, the other options do not accurately represent the primary function of Plug and Play. For instance, upgrading hardware without software does not align with the Plug and Play principle, as even with PnP, appropriate drivers (software components) are often necessary for the hardware to function correctly. Manually installing software is not related to the capabilities of Plug and Play, as the technology is about automated recognition and installation. Formatting hard drives automatically does not connect to the primary purpose of Plug and Play, which is focused solely on the connection of peripheral devices.