One effect of the computer has been its impact on communication. Thanks to the Internet and computer-controlled satellites， it is now quick and cost-effective to communicate over great distances. This has made the world smaller and has had a great influence on business， leading to greater productivity worldwide. Another great ef
1Now,we need a lot of useful information in our works or studies,so,we can find them in computer.2We are face to much pressure,so we have to make us relaxed ,we can listen to
