Web Terms

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Access Privileges

The privilege to access and make changes to files and folders.

Address Bar

The Microsoft Internet Explorer toolbar component, in which you type web site addresses or URLs.

Aggregator

A program which enables users to read the content of blogs and web sites using RSS feeds.

AJAX (Asynchronous Javascript and XML)

A web development/DOM scripting technique for creating interactive web applications. AJAX uses Javascript and XML to silently load data from the server without refreshing the web page.

Alt attribute

Alt[ernative] text. Textual content that is intended to replace a missing or unrenderable element (usually an image) on a web page. 

Search engines use alt attributes to determine the information in a page.

Anonymous FTP

A way to use the FTP program to log on to another computer so that you can copy files when you don't have an account on the other computer. When you log on, type anonymous as the user name and your address as the password. This gives you access to publicly-available files.

Apache

An open source HTTP web server software.

Applet

A small Java program that can be embedded in an HTML page. Applets differ from full-fledged Java applications in that they are not allowed to access certain resources on your local computer, such as files and serial devices, and are restricted to accessing a limited set of other computers networked resources.

ASCII (American Standard Code for Information Interchange)

This is the de facto worldwide standard for the code numbers used by computers to represent all the upper and lower-case Latin letters, numbers, punctuation, etc. There are 128 standard ASCII codes each of which can be represented by a 8 digit binary number (byte): 00000000 through 01111111.

ASP (Active Server Pages)

Microsoft's proprietary server-side scripting language used to create dynamic web pages.

Attribute

A piece of information that defines a property or characteristic of an object. For example, when you define a hyperlink on a website, you would set the href attribute to the destination the link will redirect to.

Audio File

A file that contains audio data. Common audio file formats include:

  • .mp3 - MPEG-1 (or MPEG-2) Audio Layer 3
  • .wav - Windows Waveform Audio format
  • .aiff - Apple Audio Interchange File Format
  • .ogg - Ogg Vorbis open source audio format
  • .aac - Advanced Audio Coder (formally MPEG-2 AAC)
  • .flac - Free Lossless Audio Format
  • .ra - RealAudio format

Authentication

Verifying the identity of a person or computer process.

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