篇一：一篇关于常见计算机术语的英文短文
Computer technology has become a major part of people's lives. This technology has its own special words. One example is the word mouse. A computer mouse is not a small animal that lives in buildings and open fields. It is a small device that you move around on a flat surface in front of a computer. The mouse moves the pointer, or cursor, on the computer screen. Computer expert Douglas Engelbart developed the idea for the mouse in the early
nineteen-sixties. The first computer mouse was a carved block of wood with two metal wheels. It was called a mouse because it had a tail at one end. The tail was the wire that connected it to the computer.
Using a computer takes some training. People who are experts are sometimes called hackers.
A hacker is usually a person who writes software programs in a special computer language. But the word hacker is also used to describe a person who tries to steal information from computer systems.
Another well known computer word is Google, spelled g-o-o-g-l-e. It is the name of a popular "search engine" for the Internet. People use the search engine to find information about almost any subject on the Internet. The people who started the company named it Google because in mathematics, googol, spelled g-o-o-g-o-l, is an extremely large number. It is the number one followed by one-hundred zeros.
When you "Google" a subject, you can get a large amount of information about it. Some people like to Google their friends or themselves to see how many times their name appears on the Internet.
If you Google someone, you might find that person's name on a blog. A blog is the shortened name for a Web log. A blog is a personal Web page. It may contain stories, comments,
pictures and links to other Web sites. Some people add information to their blogs every day. People who have blogs are called bloggers.
Blogs are not the same as spam. Spam is unwanted sales messages sent to your electronic mailbox. The name is based on a funny joke many years ago on a British television show, "Monty Python's Flying Circus." Some friends are at an eating place that only serves a processed meat product from the United States called SPAM. Every time the friends try to speak, another group of people starts singing the word SPAM very loudly. This interferes with the friends' discussion – just as unwanted sales messages interfere with communication over the Internet.
篇二：有关电脑的英语作文
范文1.Computers
It is known to us all that the computer is the most important invention in the 20th century. It has been developed a lot since it appeared. Also, our daily life has greatly changed because of it.
A computer can think and remember things like man, but it is millions of times faster than human begins. As a result, computers have been used in the fields of agriculture(农业), industry(工业), education(教育) and so on. For example, we can learn our lessons at home by using a computer instead of going to school.
Computers have entered our daily life. So it is important for us to learn how to use a computer. And we must start right now.
范文2：Computers
The computer is a wonderful machine. They are already widely used in industries and in universities. They are used in many ways.
Computers can do many kinds of work. For example, computers can helps us do maths problems quickly. Some problems are too hard for us to work them out, but computers can. A scientist can ask computers some questions, and the computers can answer on the screen.
In a car-factory computer tells the robots how to do with the cars.
Computers are very useful. So many parents buy computers for their children. They hope computers can help them improve their studies in school, but some children don’t do as what parents want them to do. Because they used the computers for surfing on the Internet and spend too much time
playing computer games instead of learning. It does not good for their eyesight. So their parents complain about computers not help children to study but also make them fall behind.
In many companies computers instead of workers to work. So many people lose their jobs. So many workers think computers bring them a lot of trouble.
If computers are good for us or bad for us it’s hard to say so I hope computers will be used in the right way.
篇三：计算机科学与技术英文文献
Introduction to ASP.NET Development
To overcome the performance and scalability problems that CGI brings, Microsoft developed a new way for developers to build scalable applications. This high performance alternative is called the Internet Server Application Programming Interface(ISAPI). Instead of housing functionality in executable files, ISAPI uses DLLs. Using DLLs instead of executable programs has some definite performance and scalability advantages
The ISAPI extension could also be called with arguments that will allow a single ISAPI extension to perform multiple tasks. Just as in the CGI example, the directory must have execute permissions enabled, or the DLL will be downloaded to the client rather than run on the server. ISAPI extensions are typically used to process client requests and output a response as HTML, which is very similar to the way CGI programs are used.
ISAPI filters perform a function that can’t be directly duplicated with CGI applications. ISAPI filters are never explicitly called; instead, they are called by IIS in response to certain events in the life of a request. The developer can request that an ISAPI filter be called whenever any of the following events occur:
1．When the server has preprocessed the client headers
2．When the server authenticates the client
3．When the server is mapping a logical URL to a physical URL
4．Before raw data is sent from the client to the server
5．After raw data is sent from the client to the server but before the server processes it
6．When the server logs information
7．When the session is ending
As with any filter, ISAPI filters should request only the notifications it requires and process them as quickly as possible. One of the more common uses of ISAPI filters is to provide custom authentication. Another use is to modify the HTML that will be sent to the client. For example, an ISAPI filter could be used to change the background color of each page. Because ISAPI filters aren’t nearly as common as ISAPI extensions, I won’t cover them any further in this book. If you want to learn more about ISAPI extensions, you can check out my book Inside Server-Based Applications (Microsoft Press, 1999).ISAPI specifies several entry-point functions that must be exported from the DLL. Using these entry points, IIS can load the DLL; call the functions that it implements, passing in parameters as required; and receive the data to write back to the browser. ISAPI requires only two entry-point functions to be implemented these entry points, IIS can load the DLL;
call the functions that it implements, passing in parameters as required; and receive the data to write back to the browser. ISAPI requires only two entry-point functions to be implemented
A Better Solution: Active Server Pages
If you’re wondering why we’ve dwelt on the alternatives to ASP.NET in a book about programming ASP.NET, the answer lies in the details of the implementation of ASP.NET and its predecessor, Active Server Pages (ASP). Understanding ISAPI is required for adept understanding of ASP and thus ASP.NET.
During the beta of IIS 2.0, which became part of Windows NT 4.0, Microsoft introduced a new technology initially codenamed “Denali.” This was during Microsoft’s “Active” period and so the technology was eventually named Active Server Pages, or ASP. Several versions of ASP.NET have been released, most notably the versions included with Windows NT 4.0 Option Pack (ASP 2.0 and IIS 4.0) and Windows 2000 (ASP 3.0 and IIS 5.0). For the purposes of this discussion, I’ll consider ASP as a whole, without referring to version differences
ASP.NET became an instant hit, in large part because it made something that was difficult(create dynamic Web content) relatively easy. Creating CGI applications and ISAPI applications wasn’t terribly difficult, but using ASP was much simpler By default, ASP uses VBScript. Literally millions of developers are at least somewhat familiar with Visual Basic, Visual Basic for Applications (VBA), or VBScript. For these developers, ASP was the way to enter the Internet age. Certainly the developers could have learned a new programming language, but they didn’t have to with ASP. Partly because of its use of VBScript, ASP became a viable way to build Web applications.
Just as important was the relatively easy access to databases allowed through Microsoft ActiveX Data Objects (ADO). When you need to generate dynamic content, that dynamic content obviously needs to come from somewhere, and ADO made it easy to get at that data.
Finally, and perhaps most important, the ASP.NET development model allowed developers to essentially write code and run it. There was no need to perform compilation or elaborate installation steps. the ASP.NET architects were careful to capture this same development model, even though what’s going on under the covers is quite a bit different.
A New Solution: ASP.NET
When version 3.0 of ASP.NET was released along with Windows 2000, it became clearer that the future of software development was closely tied to the future of the Web. As part of its .NET initiative, Microsoft has introduced ASP.NET, a new version of ASP that retains the model of development ASP developers have come to know and love: you
can create the code and place it in the correct directory with the proper permissions, and it will just work. ASP.NET also introduces innovations that allow easier separation of the development of the core of an application and its presentation.
ASP.NET adds many features to and enhances many of the capabilities in classic ASP.ASP.NET isn’t merely an incremental improvement to ASP; it’s really a completely new product, albeit a new product designed to allow the same development experience that ASP developers have enjoyed. Here are some of the notable features of ASP.NET:
.NET Framework: The .NET Framework is an architecture that makes it easier to design Web and traditional applications.
Common language runtime: The common language runtime provides a set of services for all ASP.NET languages. If you’re an ASP developer who has had to combine ASP scripting with COM objects, you’ll appreciate the beauty of a common set of types across many languages.
Compiled languages:ASP.NET provides enhanced performance through the use of compiled languages. Compiled languages allow the developer to verify that code is at least syntactically correct. ASP doesn’t provide any such facility, so simple syntax errors might not be caught until the first time the code is executed.
Cool new languages Visual Basic: .NET is a completely new version of Visual Basic that provides a new, cleaner syntax. C# is a new language designed to look and feel a lot like C++, but without some of the unsafe features that make C++ difficult to use to create reliable applications. These two languages are available out of the box, but other languages will be available from third parties as well. As of this writing, COBOL and Eiffel implementations should be available for Visual Studio .NET as well.
Visual Studio .NET: Visual Studio .NET is a cool new development environment that brings rapid application development (RAD) to the server.
Improved components: The .NET Framework supports the use of new types of components that can be conveniently replaced in a running application.
Web Forms: Web Forms allow Visual Basic–like development, with event handlers for common HTML widgets.
XML Web services: XML Web services enable developers to create services and then make them available using industry standard protocols.
ADO.NET: ADO for the .NET Framework is a new version of the technology that allows ASP.NET applications to more conveniently get at data residing in relational databases and in other formats, such as Extensible Markup Language (XML.)
Conclusion
This brief history of Web development should provide you with a foundation as you
continue reading about ASP.NET. Learning a programming language or development environment is much like learning a human language. Although books that cover the syntax and vocabulary are helpful, it’s often just as useful to understand the history of the people who use the language.
If you’re an ASP.NET developer, much of this chapter might be a review for you, but I hope that you’ve added something to your understanding of the history of ASP.NET. If you’re new to ASP and ASP.NET, understanding the history of ASP and what came before it will be useful as you begin to explore the exciting new technologies that make up ASP.NET.
About ASP.NET
ASP.NET Active Server Aside from the burden is not only (ASP) version of the next; It also provides a unified Web development models, including the development of enterprise-class Web applications generated personnel for the various services. ASP.NET grammar largely compatible with ASP, it also provides a new programming model and structure, flexibility and stability can produce better applications, and to provide better security protection. Through the existing ASP applications, ASP.NET gradually add functions to enhance ASP applications functions.
When building ASP.NET applications, developers can use Web or XML Web services, or in any manner they deemed appropriate portfolio. Each functional access to the same support structure, so that you can use as a certification program, buffer frequently used data, or configuration of applications for self definition, only listed a few possibilities here.
You can use Web-based generation of powerful the Web page. These generated pages, can be used to build public complaints ASP.NET server UI elements, and programming for the implementation of their common task. You can use these complaints to the building or from reusable components generated Web definition, thus simplifying the code page. For more information, please see Web pages. XML Web services provide a means of remote access server functions. Use XML Web services, enterprises can open data or business logic programming interface, and client-server applications and can acquire and operate these programming interfaces. Through the use of information such as web and XML standards such as the transmission of data across mobile firewall, XML Web services to customers - in-server or server-server programmed for data exchange. XML Web services without relying on specific components or technology transfer targets agreed. Therefore, the use of any language, using any component model, operating system and in any operating procedures can visit XML Web services.
ASP.NET and. Net Framework version 1.1 installed, as each part of the Windows Server 2003 series products. You can add it through the control panels for the new
procedures, or use "of your server guide" opening it. In addition, according to this theme later introduced "with Windows XP Professional or Windows 2000 Server computer installed ASP.NET" process downloading 1.0. Installed Visual Studio. Net will also install 1.0.
Use "of your server guide," in the operation of the Windows Server 2003 server installed ASP.NET .In the mission column, hit "start" button and then hit the "management of your servers," in the "management of your servers" window, hit "Add or remove players."
In the "configuration of your server guide", hit the "next step" in the "server roles", selected "application servers (IIS, ASP.NET)," and then hit "next". "applications server option", hit the "opening ASP.NET" of, hit the "next" and then hit "next". If necessary, inserted in CD-ROM drive Windows Server 2003 installation CD, and then hit the "next step." Installation completed, hit the "completion."
The use of "add / delete process" in operating the Windows Server 2003 server installed ASP.NET. In the mission column, hit "start" button, pointing to "control panels" and then hit the "add or delete procedures." "Windows components guides," "components" box, hit the "application server" of, then hit the "next step." When the "Windows components guides" configuration End Windows Server 2003, hit the "completion."
In Windows Server 2003 series products in China by opening ASP.NET Server Management
Column in the mission, hit "start" button and then hit the "operation." In the "operation open" box, the importation and then hit "determined." ."Server management machine", a "local computer" and then hit "Web service expansion." Panes right, hit "ASP.NET" and then hit "allowed." ASP.NET state then changed to "allow".
In operation running Windows XP Professional or Windows 2000 computer, download and install ASP.NET. If necessary, install and start IIS. On the installation, please refer to the operating system files. At http://msdn.microsoft.com/downloads/default.asp, a "Software Development Kits" (software development kits), hit the "Microsoft. net Framework SDK, "and then read the page on the SDK download requests, notes and choice. Hit for download option, and read the end-user licensing agreements, and then hit the "yes" (is). "document downloaded", download options to preserve documents, the choice to install procedures and documents downloaded to personal tale of folder, and then hit the "preservation". Check up on the latest personal tale of any document. Download documents located in the folder, Net Framework installation procedures Setup.exe.
If you have IIS installed and activated, the installation of ASP.NET and. Net Framework, deployed applications and requests a page, but received one of the following
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