随着计算机的普及、办公自动化程度的提高及政府上网工程的开展,电子文件的生产量迅速增加。据有关机构调查,目前,因特网上可检索的网页在8亿个左右,大约包含15万亿比特的数据信息和1.8亿幅图像信息;1998年全球信息存储有5%是以数字形式进行的,而到2003年,这个数字将猛增至50%? With the popularization of computers, the improvement of the degree of office automation and the government access to the Internet, the production of electronic documents has rapidly increased. According to the survey conducted by the relevant agencies, at present, about 800 million web pages are searchable on the Internet, which contains about 15 trillion bits of data information and 180 million pieces of image information. In 1998, 5% of global information storage was conducted digitally, And by 2003, this figure will soar to 50%?