每天儿子晚上回来总免不了要与同学通几次电话,问作业题或交流电子游戏诀窍。按目前信息行业的发展速度,用不了几年,互联网对于这帮孩子就会如同现在使用电话一样方便。电话网已经遍及世界,但是它只能传输音频信号——语音或乐曲。而互联网是遍及全球的最大的计算机网络,它可以传送文字、图像、声音和动画视频等。这些不同的媒体组合被称之为“多媒体”。坐在电脑前上网的人如同面对一台电视,它可以按收许多电视台播出的节目。但是与看电视不同的是,任何 Son back every night always inevitable to communicate with classmates several times, ask homework or exchange video game know-how. In the current information industry, the pace of development, it will take only a few years, the Internet for these kids will be as easy as using the phone now. The telephone network has spread all over the world, but it can only transmit audio signals - voice or music. The Internet is the largest computer network throughout the world, it can send text, images, sound and animation video. These different media groups are called “Multimedia ”. People who sit in front of a computer just as if they were facing a TV can receive programs broadcast on many television stations. But unlike watching TV, anything