【正文】 r model, one server, sometimes called a daemon, is activated and awaits client requests. Typically, multiple client programs share the services of a mon server program. Both client programs and server programs are often part of a larger program or application. Relative to the Inter, your Web browser is a client program that requests services (the sending of Web pages or files) from a Web server (which technically is called a Hypertext Transport Protocol or HTTP server) in another puter somewhere on the Inter. Similarly, your puter with TCP/IP installed allows you to make client requests for files from File Transfer Protocol (FTP) servers in other puters on the Inter. Other program relationship models included master/slave, with one program being in charge of all other programs, and peertopeer, with either of two programs able to initiate a transaction. ASP is also an abbreviation for application service provider. An Active Server Page (ASP) is an HTML page that includes one or more scripts (small embedded programs) that are processed on a Microsoft Web server before the page is sent to the user. An ASP is somewhat similar to a serverside include or a mon gateway interface (CGI) application in that all involve programs that run on the server, usually tailoring a page for the user. Typically, the script in the Web page at the server uses input received as the result of the user39。 這種遷移，造成了很多問題。雖然客戶機 /服務器的想法可以利用程式在一個單一的計算機，它是一個更重要的思想，在一個網絡。其他計劃的關系模式，包括主 /從 ，同一個程序正在負責其他所有節(jié)目，而點對點 ，有兩種程序能夠啟動交易。投入都將聚集在一個 間歇 ，并有一套成穿孔卡片，飼養(yǎng)，由經營者到大型主機電腦的時候，電腦是做跑前一批就業(yè)機會。 這部分的應用程序是居住在客戶端的個人電腦，包括邏輯陳述的信息給用戶和機制，以接受用戶輸入。規(guī)模的局域網必須加以限制，因為體積較大的脂肪客戶端軟件，需要一個負責任的局域網，否則用戶將剛剛復制的企業(yè)軟件，以自己的機器，把我們帶回數千份繼續(xù)保持。 .有好幾家公司提供龐大，昂貴的系統，有其唯一目的是保持公司軟件分散全國各地的公司。不再是必要的，為用戶的等待，甚至秒的相互作用，他們的公司數據。 可能存在使用 Web 瀏覽器和斷 絕，為更多的，特別是背后的企業(yè)防火墻 瀏覽器 /服務器 TM 技術，可以用來提高大多數企業(yè)計算系統，不只是用系統營銷。 通常情況下，多個客戶端程序共享服務的一個共同的服務器程序。這是事實，認為利用廳級局域網，可以把拷貝的數量需要加以更新，以數百人，而不是數千人。 這部分的應用程序是居住在客 戶端的個人電腦，包括邏輯陳述的信息給用戶和機制，以接受用戶輸入。s request for the page to access data from a database and then builds or customizes the page on the fly before sending it to the requestor. ASP is a feature of the Microsoft Inter Information Server (IIS), but, since the serverside script is just building a regular HTML page, it can be delivered to almost any browser. You can create an ASP file by including a script written in VBScript or JavaScript in an HTML file or by using ActiveX Data Objects (ADO) program statements in the HTML file. You name the HTML file with the .asp file suffix. Microsoft remends the use of the serverside ASP rather than a clientside script, where there is actually a choice, because the serverside script will result in an easily displayable HTML page. Clientside scripts (for example, with JavaScript) may not work as intended on older browsers. For Web service applications, Microsoft provides a new version of ASP support called . 4. Browser/Server is a trademark for the new paradigm of corporate puting that is now possible using technology developed for the World Wide Web. At the present time the Web is used by the many corporations to distribute marketing materials. The corporate Web Server is usually just a Brochure Server for the Marketing department. The potential exists for using Web Browsers and Severs for much more, especially behind the corporate firewall. Browser/Server technology can be used to enhance most corporate puting systems, not just the system used for marketing. To understand the important new role that Browser/Server technology can play within a pany it is useful to examine the previous paradigms that have paved the way for Browser/Server puting. Computers were first used in Batch mode. End users had little interaction with the corporate puting systems. Inputs would be gathered in a batch and keyed into punch cards, which were fed by operators into the mainframe puter when the puter was done running previous batch jobs. When the mainframe processed the job it usually produced printed output which eventually made its way to the end user. The batch process included no user interaction, and the only recourse a user had after discovering errors in the batch run was to go through the cycle, which often took hours or even days, again and again. The addition of dumb terminals to the mainframe gave the users direct, handson, connections to the corporate puter. Users no longer had to wait for a puter operator to run their jobs, they could enter the data and initiate processing themselves. There were still delays involved. Dumb terminals were useful for inputting and displaying information, but because they had no processing ability it was necessary for the user to interact with the mainframe in order to interact with their data. Batch jobs previously could be run onebyone if necessary, but mainframes had to deal with all attached terminals seemingly at once. This lead to delays as users waited for the mainframe to turn around their terminal messages while they interacted with their data. Still, the delays were now down to seconds or minutes, instead of hours or days. Client/Server puting has brought about a whole new standard of corporate puting productivity, but at the same time it has introduced many new problems for corporate IT anizations. The advent of lowcost desktop puters makes Client/Server possible. No longer is it necessary for users to wait even seconds to interact with their corporate data. With their own puter on their desktop they do not need to wait for the mainframe to respond. All of this cheap puter power has also made it possible to support putation intensive graphical interfaces, which are much easier for users to understand. In order for Client/Server to work, the application program which used to reside entirely on the mainframe has been s