Things you will learn about in this chapter are as follows:
Have you ever wondered how things around you seem to talk to each other? How does your garage door know when to open? How does your night-lamp know when to switch the light on and off? How does your computer connect to the Internet and download interesting videos?
All the problems in the world are solved by one word-invention.
The word In-ven-tion originates from the Latin word Inventio, which means finding out. Human beings are called ...