Explanation:
If a device is putting data into the computer in the form of text, sound, images, button presses etc. then it is an input device, if the device is outputting things from the computer such as sound, movement, printing, images etc., then it is an output device. ... Therefore it is an input device.
Answer:
If there is some sort of error
Explanation:
If there is an error that is causing problems for clients that needs to be worked out still, rolling back allows customers to still do whatever they need while you look for a solution in the new version.
Switch/Router is Broadcast
Answer:
International System of Units
Explanation:
