A2Z of Digital Media

My List from W - X - Y - Z

daleduncan — Wed, 11 Jun 2008 01:41:08 +0000

World Wide WebThe World Wide Web (commonly shortened to the Web) is a system of interlinked hypertext documents accessed via the Internet. With a Web browser, a user views Web pages that may contain text, images, videos, and other multimedia and navigates between them using hyperlinks. The World Wide Web was created in 1989 by Sir Tim Berners-Lee, working at CERN in Geneva, Switzerland. Since then, Berners-Lee has played an active role in guiding the development of Web standards (such as the markup languages in which Web pages are composed), and in recent years has advocated his vision of a Semantic Web.

Web Robots or SpidersA web crawler (also known as a web spider or web robot or - especially in the FOAF community - web scutter) is a program or automated script which browses the World Wide Web in a methodical, automated manner. Other less frequently used names for web crawlers are ants, automatic indexers, bots, and worms. This process is called web crawler or spidering. Many sites, in particular search engines, use spidering as a means of providing up-to-date data. Web crawlers are mainly used to create a copy of all the visited pages for later processing by a search engine that will index the downloaded pages to provide fast searches. Crawlers can also be used for automating maintenance tasks on a website, such as checking links or validating HTML code. Also, crawlers can be used to gather specific types of information from Web pages, such as harvesting e-mail addresses (usually for spam).

WikiA wiki is a collection of web pages designed to enable anyone who accesses it to contribute or modify content, using a simplified markup language. Wikis are often used to create collaborative websites and to power community websites. For example, the collaborative encyclopedia Wikipedia is one of the best known wikis. Wikis are used in businesses to provide affordable and effective intranets and for Knowledge Management. Ward Cunningham, developer of the first wiki software, WikiWikiWeb, originally described it as “the simplest online database that could possibly work”.

Web 2Web 2.0 is a term describing the trend in the use of World Wide Web technology and web design that aims to enhance creativity, information sharing, and, most notably, collaboration among users. These concepts have led to the development and evolution of web-based communities and hosted services, such as social-networking sites, wikis, blogs, and folksonomies. The term became notable after the first O’Reilly Media Web 2.0 conference in 2004.[2] [3] Although the term suggests a new version of the World Wide Web, it does not refer to an update to any technical specifications, but to changes in the ways software developers and end-users use the Web.

WiFiWi-Fi (IPA: /ˈwaɪfaɪ/) is the common name for a popular wireless technology used in home networks, mobile phones, video games and more. Wi-Fi is supported by nearly every modern personal computer operating system and most advanced game consoles. Web programmerA Web programmer translates the requirements of end-users and internal clients into a functional product. WebmasterThe webmaster (feminine: webmistress), also called the web architect, the web developer, the site author, or the website administrator, is the person responsible for designing, developing, marketing, or maintaining a website.Webmasters are practitioners of web communication. Typically, they are generalists with HTML expertise who manage all aspects of Web operations.On larger sites, the webmaster will act as a coordinator and overseer to the activities of other people working on the site and is usually an employee of the owner of the Web site, hence webmaster can also be listed as an occupation. If the webmaster is hired by a larger Web site, or promoted to the position, they could do things from web design, to project management, or employee supervision. WYSIWYG EditorsWYSIWYG (pronounced /wɪziwɪg/ or /wɪzɪwɪg/), is an acronym for What You See Is What You Get, used in computing to describe a system in which content displayed during editing appears very similar to the final output, which might be a printed document, web page, slide presentation or even the lighting for a theatrical event. (WAI) Web Accessibility InitiativeThe World Wide Web Consortium (W3C)’s Web Accessibility Initiative (WAI) is an effort to improve the accessibility of the World Wide Web (WWW or Web) for people using a wide range of user agent devices, not just standard web browsers. This is especially important for people with physical disabilities which require such devices to access the Web.The W3C was founded in 1994 to advance the Web. It is responsible for the development of uniform protocols to assure the interoperability of the Web. The WAI, part of the W3C, has developed a number of guidelines that can help to make Web sites more accessible, especially from the view of physically disabled people. Web Safe PaletteWeb colors are colors used in designing web pages, and the methods for describing and specifying those colors.Authors of web pages have a variety of options available for specifying colors for elements of web documents. Colors may be specified as an RGB triplet in hexadecimal format (a hex triplet); they may also be specified according to their common English names in some cases. Often a color tool or other graphics software is used to generate color values. Windows MediaWindows Media is a multimedia framework for media creation and distribution for Microsoft Windows. It consists of a software development kit with several application programming interfaces and a number of prebuilt technologies. Web BannerA web banner or banner ad is a form of advertising on the World Wide Web. This form of online advertising entails embedding an advertisement into a web page. It is intended to attract traffic to a website by linking them to the web site of the advertiser. The advertisement is constructed from an image (GIF, JPEG, PNG), JavaScript program or multimedia object employing technologies such as Silverlight, Java, Shockwave or Flash, often employing animation or sound to maximize presence. Images are usually in a high-aspect ratio shape (i.e. either wide and short, or tall and narrow) hence the reference to banners. These images are usually placed on web pages that have interesting content, such as a newspaper article or an opinion piece. XXHTMLThe Extensible Hypertext Markup Language, or XHTML, is a markup language that has the same depth of expression as HTML, but also conforms to XML syntax. XMLThe Extensible Markup Language (XML) is a general-purpose specification for creating custom markup languages. It is classified as an extensible language because it allows its users to define their own elements. Its primary purpose is to facilitate the sharing of structured data across different information systems, particularly via the Internet, and it is used both to encode documents and to serialize data. In the latter context, it is comparable with other text-based serialization languages such as JSON and YAML. YYahooYahoo! Inc. (NASDAQ: YHOO) is an American public corporation incorporated in Sunnyvale, California and a global Internet services company. It provides a range of products and services including a Web portal, a search engine, the Yahoo! Directory, Yahoo! Mail, news, and posting. It was founded by Stanford University graduate students Jerry Yang and David Filo in January of 1994 and incorporated on March 1, 1995. The company is headquartered in Sunnyvale, California in Silicon Valley. ZZip ArchiveThe ZIP file format is a popular lossless data compression and archival format. A ZIP file contains one or more files that have been compressed, to reduce their file size, or stored as-is. A number of compression algorithms are permitted in zip files but as of 2008 only DEFLATE is widely used and supported.

My List from U - V

daleduncan — Wed, 11 Jun 2008 01:39:10 +0000

USB Port

Universal Serial Bus (USB) is a serial bus standard to interface devices. USB was designed to allow many peripherals to be connected using a single standardized interface socket and to improve the plug-and-play capabilities by allowing devices to be connected and disconnected without rebooting the computer (hot swapping). Other convenient features include providing power to low-consumption devices without the need for an external power supply and allowing many devices to be used without requiring manufacturer specific, individual device drivers to be installed.

URL

Uniform Resource Locator (URL), also known as Universal Resource Locator, is a technical, Web-related term used in two distinct meanings:

In popular usage and many technical documents, it is a synonym for Uniform Resource Identifier (URI). In popular usage, it means a web page address.

Strictly, it is a compact string of characters for a resource available via the Internet[1]. The idea of a uniform syntax for global identifiers of network-retrievable documents was the core idea of the World Wide Web. In the early times, these identifiers were variously called “document names”, “Web addresses” and “Uniform Resource Locators”. These names were misleading, however, because not all identifiers were locators, and even for those that were, this was not their defining characteristic. Nevertheless, by the time the RFC 1630 formally defined the term “URI” as a generic term best suited to the concept, the term “URL” had gained widespread popularity, which has continued to this day.

Upload

Uploading and downloading are related terms used to describe the transfer of electronic data between two computers or similar systems. More colloquially, they are sometimes applied to transfers to/from removable media such as CDs.

Vodcast

Video podcast (sometimes shortened to vidcast or vodcast) is a term used for the online delivery of video on demand video clip content via Atom or RSS enclosures. The term is an evolution specialized for video, coming from the generally audio-based podcast and referring to the distribution of video where the RSS feed is used as a non-linear TV channel to which consumers can subscribe using a PC, TV, set-top box, media center or mobile multimedia device.

Vector Graphics

Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based upon mathematical equations, to represent images in computer graphics.

Vector graphics formats are complementary to raster graphics, which is the representation of images as an array of pixels, as it is typically used for the representation of photographic images. There are instances when working with vector tools and formats is best practice, and instances when working with raster tools and formats is best practice. There are times when both formats come together. An understanding of the advantages and limitations of each technology and the relationship between them is most likely to result in efficient and effective use of tools.

Video Card

A video card, also referred to as a graphics accelerator card, display adapter, graphics card, and numerous other terms, is an item of personal computer hardware whose function is to generate and output images to a display. It operates on similar principles as a sound card or other peripheral devices.

Virtual memory

Virtual memory is a computer system technique which gives an application program the impression that it has contiguous working memory, while in fact may be physically fragmented and may even overflow on to disk storage. Systems that use this technique make programming of large applications easier and use real physical memory (e.g. RAM) more efficiently than those without virtual memory.

My List from S - T

daleduncan — Wed, 11 Jun 2008 01:36:29 +0000

Search Engine

A Web search engine is a search engine designed to search for information on the World Wide Web. Information may consist of web pages, images and other types of files.

Some search engines also mine data available in newsgroups, databases, or open directories. Unlike Web directories, which are maintained by human editors, search engines operate algorithmically or are a mixture of algorithmic and human input.

Scripting Languages

A scripting language, script language or extension language, is a programming language that controls a software application. “Scripts” are often treated as distinct from “programs“, which execute independently from any other application. At the same time they are distinct from the core code of the application, which is usually written in a different language, and by being accessible to the end user they enable the behavior of the application to be adapted to the user’s needs. Scripts are often, but not always, interpreted from the source code or “semi-compiled” to bytecode which is interpreted, unlike the applications they are associated with, which are traditionally compiled to native machine code for the system on which they run. Scripting languages are nearly always embedded in the application with which they are associated.

Spam

Spamming is the abuse of electronic messaging systems to indiscriminately send unsolicited bulk messages. While the most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, wiki spam, mobile phone messaging spam, Internet forum spam and junk fax transmissions.

SSL (Secure Sockets Layer)

Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols that provide secure communications on the Internet for such things as web browsing, e-mail, Internet faxing, instant messaging and other data transfers. There are slight differences between SSL and TLS, but they are essentially the same.

Streaming Media

Streaming multimedia is multimedia that is constantly received by, and normally displayed to, the end-user while it is being delivered by the provider (the term “to display” is used in this article in a general sense that includes audio playback.) The name refers to the delivery method of the medium rather than to the medium itself. The distinction is usually applied to media that are distributed over telecommunications networks, as most other delivery systems are either inherently streaming (e.g. radio, television) or inherently non-streaming (e.g. books, video cassettes, audio CDs). The verb ‘to stream’ is also derived from this term, meaning to deliver media in this manner.

Scanner

In computing, a scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image. Common examples found in offices are variations of the desktop (or flatbed) scanner where the document is placed on a glass window for scanning. Hand-held scanners, where the device is moved by hand, were briefly popular but are now less common due to the difficulty of obtaining a high-quality image. Mechanically driven scanners that move the document are typically used for large-format documents, where a flatbed design would be impractical.

Stop Frame Animation

Stop motion (or frame-by-frame) animation is a general term for an animation technique which makes a physically manipulated object appear to move on its own. The object is moved by extremely small amounts between individually photographed frames, creating the illusion of movement when the series of frames are played as a continuous sequence. Clay figures are often used in stop motion animations, known as claymation, for their ease of repositioning. Software applications such as Stop Motion Pro, istopmotion and monkeyjam have made the technique popular among young filmmakers.

Stock Photos

Stock photography consists of existing photographs that can be licensed for specific uses. Publishers, advertising agencies, graphic artists, and others use stock photography to fulfill the needs of their creative assignments.

A customer who uses stock photography instead of hiring a photographer can save time and money, but can also sacrifice creative control. Stock images can be presented in searchable online databases, purchased online, and delivered via download or email.

A collection of stock photography may also be called a photo archive, picture library, image bank or photo bank. As modern stock photography distributors often carry stills, video, and illustrations, none of the existing terminology provides a perfect match.

Software Calibration

Calibration is the process of establishing the relationship between a measuring device and the units of measure. This is done by comparing a device or the output of an instrument to a standard having known measurement characteristics. For example the length of a stick can be calibrated by comparing it to a standard that has a known length. Once the relationship of the stick to the standard is known the stick can be used to measure the length of other things.

Saturation

Saturation or saturated generally means “thoroughly full”, while unsaturated means less than full.

SLR Camera

The single-lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non-SLR cameras where the view through the viewfinder could be significantly different from what was captured on film.

Scrolling

In computer graphics and television, scrolling or text crawling is the act of sliding a horizontal or vertical presentation of content, such as text, drawings, or images, across a screen or display window. Scrolling is often used to show large amounts of data that could not fit on the viewport all at the same time, this is commonly used in window-based computer displays. The word scroll is derived from the way in which people read scrolls of paper, by rolling up the top of the page and allowing objects lower on the page to move up. Smooth scrolling refers to a scrolling display where text appears smoothly, rather than appearing as a whole line at a time.

Thumbnail

Thumbnails are reduced-size versions of pictures, used to make it easier to scan and recognize them, serving the same role for images as a normal text index does for words. Visual search engines and image-organizing programs normally use them, as can some modern operating systems or desktop environments, such as Windows XP, KDE, and GNOME.

Tiff File

Tagged Image File Format (abbreviated TIFF) is a file format for storing images, including photographs and line art. It is now under the control of Adobe Systems. Originally created by the company Aldus [1] for use with what was then called “desktop publishing”, the TIFF format is widely supported by image-manipulation applications, by publishing and page layout applications, by scanning, faxing, word processing, optical character recognition and other applications.

Adobe Systems, which acquired Aldus, now holds the copyright to the TIFF specification. TIFF has not had a major update since 1992, though several Aldus/Adobe technical notes have been published with minor extensions to the format, and several specifications, including TIFF/EP, have been based on the TIFF 6.0 specification.

Typography

Typography is the art, craft and techniques of type design, modifying type glyphs, and arranging type. Type glyphs (characters) are created and modified using a variety of illustration techniques. The arrangement of type is the selection of typefaces, point size, line length, leading (line spacing) and letter spacing.

Typography is performed by typesetters, compositors, typographers, graphic artists, art directors, and clerical workers. Until the Digital Age, typography was a specialized occupation. Digitization opened up typography to new generations of visual designers and lay users.

TCP/IP

The TCP/IP Model is a specification for computer network protocols created in the 1970s by DARPA, an agency of the United States Department of Defense. It laid the foundations for ARPANET, which was the world’s first wide area network and a predecessor of the Internet. The TCP/IP Model is sometimes called the Internet Reference Model, the DoD Model or the ARPANET Reference Model.

TCP/IP defines a set of rules to enable computers to communicate over a network. TCP/IP provides end to end connectivity specifying how data should be formatted, addressed, shipped, routed and delivered to the right destination. The specification defines protocols for different types of communication between computers and provides a framework for more detailed standards.

Text File

A text file (sometimes spelled “textfile”) is a kind of computer file that is structured as a sequence of lines. A text file exists within a computer file system. The end of a text file is denoted by placing one or more special characters, known as an end-of-file marker, after the last line in a text file.

My List from Q - R

daleduncan — Wed, 11 Jun 2008 01:34:37 +0000

Quicktime

QuickTime is a multimedia framework developed by Apple Inc., capable of handling various formats of digital video, media clips, sound, text, animation, music, and several types of interactive panoramic images. Available for Classic Mac OS, Mac OS X and Microsoft Windows operating systems, it provides essential support for software packages including iTunes, QuickTime Player (which can also serve as a helper application for web browsers to play media files that might otherwise fail to open) and Safari.

Quick Mask Mode

Quick mask mode is a powerful way of selection in Photoshop. It is a selection based on the masking of the desired portion of an image. It is used for minute and accurate selections.

RGB

The RGB color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.

The main purpose of the RGB color model is for the sensing, representation, and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography. Before the electronic age, the RGB color model already had a solid theory behind it, based in human perception of colors.

Resolution

The display resolution of a digital television or computer display typically refers to the number of distinct pixels in each dimension that can be displayed. It can be an ambiguous term especially as the displayed resolution is controlled by all different factors in cathode ray tube (CRT) and flat panel or projection displays using fixed picture-element (pixel) arrays.

Relative & Absolute URLS

Absolute URL

In addition to several other meanings, the word absolute, in English, means “not dependent on anything else”. It also means “free from doubt”. An Absolute URL is, thus, something that is independent or free from any relationship. When you use an absolute URL, you point directly to a file. Hence, an absolute URL specifies the exact location of a file/directory on the internet. It also follows that each absolute URL is unique, which means that if two URLs are identical, they point to the same file.

For example: http://www.webdevelopersnotes.com/images/email.gif specifies an image file email.gif located in the images directory, under www.webdevelopersnotes.com domain name. Similarly, the absolute URL of the document you are viewing is http://www.webdevelopersnotes.com/design/ relative_and_absolute_urls.php3 which is a page in the directory called design on this web site.

Relative URL

A relative URL points to a file/directory in relation to the present file/directory. Let us understand relative URLs through a small exercise. Look at the two URL above. We want to include (display) the image file email.gif stored in the images directory of www.webdevelopersnotes.com domain on this (relative_and_absolute_urls.php3 stored in the design directory) page. There are two ways to do this. We can either refer to it using an absolute URL or use a relative URL. The tag for this image display will be as follows:

Using an Absolute URL in an tag

http://www.webdevelopersnotes.com/images/email.gif width=”…” height=”…”>

Using a Relative URL in an tag

Raster Graphics

In computer graphics, a raster graphics image or bitmap, is a data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats (see Comparison of graphics file formats).

Rollover Button

RAM

Random access memory (usually known by its acronym, RAM) is a type of computer data storage. Today it takes the form of integrated circuits that allow the stored data to be accessed in any order, i.e. at random. The word random thus refers to the fact that any piece of data can be returned in a constant time, regardless of its physical location and whether or not it is related to the previous piece of data.

This contrasts with storage mechanisms such as tapes, magnetic discs and optical discs, which rely on the physical movement of the recording medium or a reading head. In these devices, the movement takes longer than the data transfer, and the retrieval time varies depending on the physical location of the next item.

My List from O - P

daleduncan — Wed, 11 Jun 2008 01:32:07 +0000

OSP (Online Service Provider)

An online service provider can include internet service providers and web sites, such as Wikipedia’s or Usenet (commonly accessed through Google Groups). In its original more limited definition it referred only to a commercial computer communication service in which paid members could dial via a computer modem the service’s private computer network and access various services and information resources such a bulletin boards, downloadable files and programs, news articles, chat rooms, and electronic mail services. The term “online service” was also used in references to these dial-up services. The traditional dial-up online service differed from the modern Internet service provider in that they provided a large degree of content that was only accessible by those who subscribed to the online service, while ISP mostly serves to provide access to the internet and generally provides little if any exclusive content of its own. In the U.S., the Online Copyright Infringement Liability Limitation Act (OCILLA) portion of the U.S. Digital Millennium Copyright Act has expanded the legal definition of online service in two different ways for different portions of the law. It states in section 512(k)(1):

Open Source

Open source is a development methodology,[1] which offers practical accessibility to a product’s source (goods and knowledge). Some consider open source as one of various possible design approaches, while others consider it a critical strategic element of their operations. Before open source became widely adopted, developers and producers used a variety of phrases to describe the concept; the term open source gained popularity with the rise of the Internet, which provided access to diverse production models, communication paths, and interactive communities.

Opacity

Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes the absorption and scattering of radiation in a medium, such as a plasma, dielectric, shielding material, glass, etc. An opaque object is neither transparent (allowing all light to pass through) nor translucent (allowing some light to pass through). When light strikes an interface between two substances, in general some may be reflected, some absorbed, some scattered, and the rest transmitted (also see refraction). An opaque substance transmits very little light, and therefore reflects, scatters, or absorbs most of it. Both mirrors and carbon black are opaque. Opacity depends on the frequency of the light being considered. For instance, some kinds of glass, while transparent in the visual range, are largely opaque to ultraviolet light. More extreme frequency-dependence is visible in the absorption lines of cold gases. In general, a material tends to emit light in the same proportions as it absorbs it.

Photoshop

Adobe Photoshop, or simply Photoshop, is a graphics editor developed and published by Adobe Systems. It is the current and primary market leader for commercial bitmap and image manipulation, and is the flagship product of Adobe Systems. It has been described as “an industry standard for graphics professionals”[1] and was one of the early “killer applications” on Macintosh.[2]

Photoshop CS3, the current tenth iteration of the program, was released on 16 April 2007. “CS” reflects its integration with other Creative Suite products, and the number “3″ represents it as the third version released since Adobe re-branded its products under the CS umbrella. Photoshop CS3 features additions such as the ability to apply non-destructive filters, as well as new selection tools named Quick Selection and Refine Edge that make selection more streamlined. On April 30th, Adobe released Photoshop CS3 Extended, which includes all the same features of Adobe Photoshop CS3 with the addition of capabilities for scientific imaging, 3D, and high end film and video users. The successor to Photoshop CS3, Photoshop CS4, will be the first 64-bit Photoshop.[

Portal

Web portal is a site that provides a single function via a web page or site. Web portals often function as a point of access to information on the World Wide Web. Portals present information from diverse sources in a unified way. Aside from the search engine standard, web portals offer other services such as e-mail, news, stock prices, infotainment and various other features. Portals provide a way for enterprises to provide a consistent look and feel with access control and procedures for multiple applications, which otherwise would have been different entities altogether. An example of a web portal is Yahoo!

Plug In

A plugin (plug-in, addin, add-in, addon, add-on or snap-in; but see extension) is a computer program that interacts with a host application (a web browser or an email client, for example) to provide a certain, usually very specific, function “on demand”. Applications support plugins for many reasons. Some of the main reasons include: enabling third-party developers to create capabilities to extend an application, to support features yet unforeseen, reducing the size of an application, and separating source code from an application because of incompatible software licenses.

Podcast

A podcast is a series of digital-media files which are distributed over the Internet using syndication feeds for playback on portable media players and computers. The term podcast, like broadcast, can refer either to the series of content itself or to the method by which it is syndicated; the latter is also called podcasting. The host or author of a podcast is often called a podcaster.

Pixel

In digital imaging, a pixel (picture element[1]) is the smallest piece of information in an image. Pixels are normally arranged in a regular 2-dimensional grid, and are often represented using dots or squares. Each pixel is a sample of an original image, where more samples typically provide a more accurate representation of the original. The intensity of each pixel is variable; in color systems, each pixel has typically three or four components such as red, green, and blue, or cyan, magenta, yellow, and black.

PNG file

Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace the GIF format, as an image-file format not requiring a patent license. PNG is pronounced /ˈpɪŋ/ both P-N-G and ping. The PNG initialism is optionally recursive, unofficially standing for “PNG’s Not GIF”. PNG supports palette-based (palettes of 24-bit RGB colors), greyscale or RGB images. PNG was designed for transferring images on the Internet, not professional graphics, and so does not support other color spaces (such as CMYK). PNG files nearly always use file-extension “PNG” or “png” and are assigned MIME media type “image/png” (approved October 14, 1996).

Pixelated

In computer graphics, pixelation (or pixellation in British English) is an effect caused by displaying a bitmap or a section of a bitmap at such a large size that individual pixels, small single-colored square display elements that comprise the bitmap, are visible to the eye. A picture that this has happened to has been pixelated.

PDF File

The Portable Document Format (PDF) is the file format created by Adobe Systems in 1993 for document exchange. PDF is a fixed-layout format used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system.[1] Each PDF file encapsulates a complete description of a 2-D document (and, with Acrobat 3-D, embedded 3-D documents) that includes the text, fonts, images, and 2-D vector graphics that compose the documents.

Proxy Server

In computer networks, a proxy server is a server (a computer system or an application program) which services the requests of its clients by forwarding requests to other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource, available from a different server. The proxy server provides the resource by connecting to the specified server and requesting the service on behalf of the client. A proxy server may optionally alter the client’s request or the server’s response, and sometimes it may serve the request without contacting the specified server. In this case, it would ‘cache’ the first request to the remote server, so it could save the information for later, and make everything as fast as possible.