Technology is on a fast roll in our current era. Innovation and discoveries are so new that sometimes you do not have any idea how a certain gadget or device works. One ideal example is an external modem. You have a computer at home and you are aware that you are using this with the help of a modem. However, you might be wondering how it really works.
Understanding how an external modem works is not as difficult as it seems. Knowing the basics is the key to learning.