Minim Invasive Ther Allied Technol. 2002 Mar;11(2):41-7. doi: 10.1080/136457002753632448.
The Internet is a global mesh of countless computers and computer networks that are connected by glass-fibre lines, copper cables or via satellites, and which can communicate with each other. In principle, any computer, whether Macintosh, IBM-compatible PC or supercomputer, and regardless of the operation system and user software installed, may be connected to the Internet. To enable data exchange between the various computers and network systems, standardized procedures, 'protocols', have been developed. Major protocols are IP (Internet protocol) and TCP (transmission control protocol), which is based on the former. Apart from the Internet, there are other computer networks, e.g. videotext or AOL. Within these networks, communication is controlled by other protocols. When data are exchanged between these various networks, they have to pass a 'gateway', i.e. a source computer. Any file stored on an Internet computer is given an unambiguous address worldwide, the universal resource localizer (URL). The URL consists of the transmission protocol, e.g. http:, followed by the computer address, e.g. www.web.de or www.fzk.de and the path and name of the file, e.g. start.htm. This paper presents a brief historical survey of the Internet, including a description of its general function. It then deals with the topic of patient data on the Internet, the general safety of the Internet, and the function of search machines. The benefits to the user will thus be illustrated.
互联网是一个由无数计算机和计算机网络组成的全球网络，这些计算机和网络通过玻璃纤维线路、铜缆或卫星连接，并且能够相互通信。原则上，任何计算机，无论是苹果机、IBM兼容个人计算机还是超级计算机，无论安装何种操作系统和用户软件，都可以连接到互联网。为了实现各种计算机和网络系统之间的数据交换，已经开发了标准化程序，即“协议”。主要协议是IP（网际协议）和基于前者的TCP（传输控制协议）。除了互联网，还有其他计算机网络，例如可视图文或美国在线。在这些网络中，通信由其他协议控制。当在这些不同网络之间交换数据时，它们必须通过一个“网关”，即一台源计算机。存储在互联网计算机上的任何文件在全球范围内都有一个明确的地址，即通用资源定位器（URL）。URL由传输协议（例如http:）、计算机地址（例如www.web.de或www.fzk.de）以及文件的路径和名称（例如start.htm）组成。本文简要介绍了互联网的历史，包括对其一般功能的描述。然后讨论了互联网上的患者数据主题、互联网的总体安全性以及搜索引擎的功能。从而说明对用户的好处。
