Technology

The invention of MP3 player is a landmark of technology. In my parents' generation, many people used radio to listen to music. As time went by, mobile casstte came out; it had defects. First, it is heavy and big, so it is inconvenient to carry out. And second is if we want to listen to music, we should buy a tape, but it is expensive. But an MP3 player removes these defects. It is very light and small, so we can carry it easily and we use this in exercising. And we don't have to buy the artists' album. Sometimes, we want to listen to only one song, so buying an album wastes money for people. But we buy one song on the Internet, and we can listen to music; that is all I want to listen to outside. So for those reasons, MP3 player has many benefits, and it is a different invention in technology from our parents' generation.