一.上海信息港是在信息技术进入“以网络为核心的计算机时代”的背景下正式全面启动建设的。 大家知道,自从世界上第一台电脑诞生以来,信息技术的发展经历了三个阶段:第一阶段,是以美国IBM公司S/360、370大型计算机系统为代表产品的“集中式计算机时代”;第二阶段,是由来自不同厂商、种类繁多、不断更新换代的个人计算机系统为代表的“客户机/服务器计算机时代,即分布式计算机时代”;第三阶段,即现在,进入了以Internet国际计算机互 I. Shanghai Information Port officially started construction under the background of information technology entering the era of “network-centric computer.” We all know that since the birth of the first computer in the world, the development of information technology has gone through three stages: the first stage is the “centralized computer era” represented by the IBM S / 360 and 370 large-scale computer systems in the United States, ; The second stage, from the different vendors, a wide range of constantly upgrading personal computer system represented by the “client / server computer era, the era of distributed computing”; the third stage, that is, now, into the Internet International computer interaction