p>#1)and a plugin is a program written by someone that is integrated into another application. The program plugs into the application. Plugins often provide additional functionality that isn't available in the application
#2)the last one because its the only one....
#3)no of course not anyone smart enough can write one
#4)yes...
#5)Add component installed in or connected to a computer that expands the capabilities of the entire system. This is also applies to multimedia applications that are installed to expand the capabilities of the web browsers.....and a plugin is a program written by someone that is integrated into another application. The program plugs into the application. Plugins often provide additional functionality that isn't available in the application
#6)google definitions! woooowhooooo!!


