Important invention

In the past half-century, scientific and technological advances have transformed our world, especiallyinventing thefirst computerin1446.It's difficult to imagine our world today without computers. Of course, they have been around since World War Two, but they were clunky, massively expensive things that had all the calculating power of a brick. When Steve Wozniak and Stephen Jobs introduced the Apple in 1976, however, it changed everything and the rest is, as they say, history. Today, of course, they are everywhere and we have become so dependent upon them that many people almost feel naked without one. For some, they even provide the very means of maintaining a livelihood: we use them to keep track of our finances, write books, design logos and sell real estate. Plus, they are rapidly replacing the stereo and television in their ability to entertain us with music, movies, and games. Makes it hard to understand how our ancestors did so well without them, doesn't it? Computers have became an important invention of sienctist in the life.

1970—DIGITAL MUSIC

In the past half-century, scientific and technological advances have transformed our world, especiallyinventing thefirst digital musicin1970. James Russell, a scientist with the Pacific Northwest National Laboratory, invents the first digital-to-optical recording and playback system. In which sounds are represented by a string of 0s and 1s and a laser reads the binary patterns etched on a photosensitive platter. Russell isn't able to convince the music industry to adopt his invention. However, 20 years later, Time Warner and other CD manufacturers pay a $30 million patent infringement settlement to Russell's former employer, the Optical Recording Co. Since then, digital music was assess to be an important invention in the 20th century.