Welcome to the IT World
IT means information Technology in which we can introduce the about the latest Technology of all over the world e.g. Computers, Laptops, Palmtops, mobiles phones and others accessories etc……..
First we talk about mp3
Mp3 is a device in which we can store audio songs. If the mp3 is built-in than we can also store other data.
Now we talk about Mp4
Mp4 is latest than mp3 in which we can save audio and also the video songs it is also work as a USB in which we can travel data from one computer to other