Question

16. Why do you need to install device driver every
time you attach a new hardware device with
your computer?
​

Answer 1

it is because the device driver makes your computer to ready (startup) to beet a new hardware.

Answer 2

Hardware devices are essentially required for a proper operation of a modern computer.

Now these hardware devices are operated by the computer's operating system or software.

To perfectly establish a synchronisation link between the computer software and new external hardwares we have to install the hardware drivers.

These drivers are essential for a proper connection between existing computer software and newly installed hardware devices.