This is why, for instance, CDs have such good sound. They're digital recordings. You can buy a used CD and assume it will be nearly as good as new, which you cannot assume with a second-hand record. A thousandth digital copy is just as good as the first. The first issuance of Windows 98 won't be any different than the millionth.
Digitization is nearly perfect .
And anyone can do it. We don't need factories and manufacturing plants and specialized training. One of these forms of media is called multimedia , which means that more than one medium has been combined with some degree of interactivity. Interactivity means that the user has some control over the reception and use of the information. Without an element of interactivity, multimedia wouldn't be more than, for instance, a slide show or an extension of filmmaking.