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History of Web Applications
Quick, basic history
9
Computer Science
Professional
07/11/2007

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Term
What is Common Gateway Interface (CGI)?
Definition
A the first server-side scripting standard; used for running external programs from a Web server. A CGI program can access information in a database and return the results to a client as HTML. CGI programs can be either a compiled application (written in C) or a script (written in Perl or Python). This was the de facto standard for Web applications.
Term
What was the predominant operating system for servers when CGI scripting was the standard, and what was the most popular programming language used?
Definition
UNIX. Perl.
Term
What programming language did Microsoft create to compete with Perl?
Definition
Internet Database Connector.
Term
What is ISAPI?
Definition
Internet Server Application Programming Interface scripts (or filters) are compiled DLLs that are loaded in an IIS application. ISAPI allows CGI-like tasks to run as part of the server process. This helps avoid the overhead involved in creating a new process to handle each CGI request, which overloads a server.
Term
What is ASP?
Definition
ASP (Active Server Pages) was CGI, ISAPI, and IDC in one. ASP is like a container of objects that could be used by VBScript or JScript. It was powerful because it allowed recordsets to be accesses and displayed in any order, any time, in a Web page.
Term
What is contained in an ASP page?
Definition
Scripts, HTML, or both.
Term
What are the five ASP objects?
Definition
Server, Application, Session, Response, Request
Term
What is VBScript?
Definition
A light-weight scripting language based on visual basic. It is the code in ASP. ASP is like a bucket in which you pour VBScript.
Term
What is ADO (ActiveX Directory Objects)?
Definition
ADO is a set of COM objects used for accessing databases.
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