与20世纪相比,21世纪将具有信息化社会的三大特征:1、计算机这一信息化工具将会有更大的发展,特别是微型计算机和各种个人计算机将步入每一个企事业部门乃至每一个家庭,将实现计算机面向人人。1964年前,全世界只有14万人用计算机,由于计算机速度、性能迅速提高,价格下降,20世纪90年代已发展到5亿人在应用计算机。到2000年,全世界将有10亿人使用计算机。计算机网络也将在21世纪大显身手,家用计算机上网已很普遍,从而也将实现计算机网络面向人人。2、整个社会将处于计算机网络的服务之中。如果把今天的计算机信息产业作一个粗略划分的话,那么,除了硬件、软件、系统集成服务业外,还应该划分出一个信息服务业。1995年美国计算机装机量为1亿台,我国每年增加微机几百万台,估计每年增长 Compared with the 20th century, the 21st century will have three major characteristics of an information society: 1. There will be even greater development of computerized information tools. In particular, microcomputers and various personal computers will enter every enterprise and institution Departments and even every family, will achieve the computer for everyone. Before 1964, only 140,000 people worldwide used computers. As the speed and performance of computers rapidly increased and their prices dropped, they had grown to 500 million people using computers in the 1990s. By the year 2000, there will be 1 billion people worldwide who use computers. Computer networks will also show their talents in the 21st century, and home computer access to the Internet has become commonplace, which will also make the computer network accessible to all. 2, the entire community will be in the computer network services. If we make a rough division of today’s computer information industry, then, in addition to hardware, software, system integration services, but also should be divided into an information service industry. In 1995, the installed capacity of computers in the United States was 100 million units, and the number of microcomputers in our country increased by several million units annually. It is estimated that the annual growth rate