Digital information can be many things including words, numbers, photos, sounds, movies or x-rays. Once an item is digitized there are three significant things you can do with it. You can store transmit and manipulate the information electronically. That’s it, that’s the digital revolution. At first glance it may not seem too important but in action it literally changes everything. The digital exchange of data is what’s behind the PC revolution, its what powers the Internet, it is the essence of the information age.