Image Arcadia Lite 3.0 User Manual
- Glossary


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Absolute Path - Refers to path descriptions that refer to a location from the root.  i.e. A path is absolute if you are referring to your image directory from your cgi-bin like this: "/home/sites/domain.com/public_html/images" or "c:\\inetpub\\domain.com\\wwwroot\\images". 

ActivePerl - ActivePerl is the long-awaited "merge" of the two popular Perl ports. ActivePerl includes Perl for Win32, PerlScript and Perl Package Manager. Based on Perl 5.6, ActivePerl 5.6 is a significantly enhanced distribution, encompassing the new features available in Perl 5.6. The Windows package provides additional features to take advantage of that platform.

Apache - A public-domain Web Server developed by a small group of programmers in 1995. Because of its sophisticated features, excellent performance, and low price (free), it is the world's most popular server.

ASCII - (American Standard Code for Information Interchange) - The de facto world-wide standard for the code numbers used by computers to represent all upper-case and lower-case Latin letters, numbers, punctuation, etc. There are 28 standard ASCII codes, each of which can be represented by a 7-digit binary number: 0000000 through 1111111, plus parity.

Binary - Pertaining to a number system that has only two digits. Computers are based on the binary numbering system, which consists of the numbers 0 and 1. All operations that are possible in the decimal system such as addition, subtraction, multiplication, and division are equally possible in the binary system.

CGI - (Common Gateway Interface) - The standard for interfacing external applications with information servers, such as HTTP or Web services.

CHMOD - chmod changes the permissions of each given file according to mode, which can be either a symbolic representation of changes to make, or an octal number representing the bit pattern for the new permissions.

Cookies - A piece of information sent by a Web Server to a Web Browser that the Browser software is expected to save and to send back to the Server whenever the browser makes additional requests from the server. Depending on the type of Cookie used, and the Browser's settings, the Browser may or may not except the Cookie, and may save the Cookie for either a short or long time. Cookies might contain such information such as logon or registration information, on-line "shopping-cart" information, user preferences, etc. Whenever a Server receives a request from a Browser that includes a Cookie, the Server is able to use the information stored in the Cookie. Cookies are usually set to expire after a predetermined amount of time and are usually saved to disk if their "expire-time" has not been reached. Cookies do not read your hard-drive and send your personal information to the CIA, but they can be used to gather more information about a user than would be possible without them.

Error 403 - The error message that's automatically served when the URL a user has requested is denied due to access restrictions.

Error 404 - The error message that's automatically served when the URL a user has requested is not found. This may be because the Web page or Web site has been moved or removed, or because the user entered an incorrect URL.

Error 500 - Server Error - The error message that's automatically served when the program related to the URL is not being loaded. For example, if this error occurs with a URL of "http://www.yoursite.com/gallery/gallery.cgi", then the MST program, which handles this type of URL, is not being loaded. If this error occurs while trying to start the server, it may be that another process already has that port in use.

File Permissions - File permissions include Full Control, Modify, Read & Execute, Read, and Write. Each of these permissions consists of a logical group of special permissions. The following table lists each file permission and specifies which special permissions are associated with that permission. Groups or users granted Full Control on a folder can delete any files in that folder regardless of the permissions protecting the file.

FTP - (File Transfer Protocol) - A very common method of moving files between two Internet sites. FTP is a special way to login to another Internet site for the purpose of retrieving and/or sending files. There are many Internet sites that have established publicly accessible repositories of material that can be obtained using FTP, by logging in using the account name anonymous, thus these sites are called anonymous FTP Servers.

HTML - (Hyper Text Markup Language) - The coding language used to create Hypertext documents for use on the World Wide Web. HTML looks a lot like old-fashioned type setting code, where you surround a block of text with codes that indicate how it should appear. Additionally, in HTML you can specify that a block of text, or a word, is linked to another file on the Internet. HTML files are meant to be viewed using a World Wide Web Client Program, such as Netscape or Mosaic.

Hyperlink - An element in an electronic document that links to another place in the same document or to an entirely different document. Typically, you click on the hyperlink to follow the link. Hyperlinks are the most essential ingredient of all hypertext systems, including the www.

Internet Address - A code or series of letters, numbers and/or symbols by which the Internet identifies you or a location where information is stored. Through the use of addresses, people can send you e-mail, look at your Web site, and send or receive files and documents.

Media - Any form of images, movies, pictures, photos.. etc.

Perl - A high-level, general-purpose programming language that makes easy and medium hard tasks easy, and seriously non-trivial tasks possible.

Relative Path - Refers to path descriptions that refer to a location from some other place other than the root.  i.e. A path is relative if you are referring to your image directory from the cgi-bin like this: "../../documents/images".

Telnet - The command and program used to login from one Internet side to another. The Telnet command/program gets you to the login prompt of another host.

URL - (Uniform Resource Locator) - The standard way to give the address of any resource on the Internet that is part of the World Wide Web (www.). An example of a URL is: http://www.yoursite.com/gallery

Web Browser - Applications that make it easy to access the World Wide Web. Web browsers can both locate and display Web pages. The two most popular are: Netscape Navigator and Microsoft Internet Explorer.

Web Host - The server where your web site's html files, graphics, etc. reside. An Internet host has a unique Internet address (IP address) and a unique domain or host name.

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