I would like to know from your understanding what a plug-in is in very easy-to-understand plain English. What are some of the functions of a plug-in? How does a plug-in enhance a user’s experience of using software which is able to accept plug-ins? Under what condition should I consider using a plug-in?
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Plug-in is an option that PC shows when you are forcing your  to be attached to a PC without connecting it with your PC.
Plug-in is a cable or an extension that you attached to your PC  to connect any device like cell phone or any other.
When you attached your cable with pc it connects you with your device and you can copy paste your data in your device with your pc and vise versa.
Plug-in can enhance the user's experience of using software that accepts plug-ins by connecting users with device to PC and PC to device.
When you want to attach something like cell phone device with data cable just put it in the PC and attached also with your device.Â
It can be your mobile device charger or laptop charger, any plug that is required on your switchboard if battery dead, it shows you plug- in charger.
