论文部分内容阅读
一百六十年前.塞缪尔·莫尔斯采用一连串简单的点和线发出了世界上第一封电报.人类从此迎来了电信时代。经过不到十年的发展.电报就已经成为一项日常的公众服务。今天,信息通信技术发展日新月异.越来越多的人意识到.人们的日常生活离不开使
One hundred and sixty years ago, Samuel Morse sent the world’s first telegram through a series of simple points and lines, and mankind ushered in the era of telecommunications. After less than a decade of development, Telegraph has become a daily public service. Today, the development of information and communication technology is changing with each passing day, and more and more people realize that people’s daily life can not be separated