| SPIHT The Set Partitioning In Hierarchical Trees algorithm for image and video compression. Documentation and resources. |
| Tutorial_on_Image_Compression A tutorial on Image Compression, with step by step procedural examples and list of references, along with sample code. |
| Vcodex Video and image coding tutorials, links, resources and research. |
| Alternate_Perspective_Online Specialize in computer animation and digital special effects for film and broadcast television. Network render farm services and web authoring. |
| Image_Refinery_Render_Farm_Services A digital design house, they also offer a render farm supporting Lightwave. How to contact them for more information. |
| MTP_Grafx_Render_Farm Supporting 3D Studio Max and Lightwave. Their capabilities and other information. Flat rate charged per frame for broadcast quality D1 renderings. |
| RenderNOW!_-_Render_farm Computer animation render facilities, custom computer animation creation and video production. |
| ResPower Offers 24/7 self-service Internet 3D rendering on 400+ computers (1,500 GHz) for Lightwave, Maya, 3d Studio Max, Brazil, mentalRay and final Render. |
| SAEC_/_Kinetic_Vision_-_Design_Visualization Offering 3D Studio MAX network render and videotape transfer services. Please contact for more information. |
| American_Design_Drafting_Association The ADDA is an individual membership society for the design drafting community across all industries. |
| CAD_Society A not-for-profit organization which has the goal of encouraging open communication among those in the CAD industry. |
| Enter An open source Enterprise 128 emulator for Windows. |
| Enterprise_64/128_Depository Enterprise 64/128 depository and Emulator Project. |
| EPTE Enterprise Tape Emulator. EPTE is a free virtual tape recorder for the Enterprise 128k home computer. |
| Zilog_Realms EP32 an open source 128 emulator for Windows based on Kevin Thackers "enter" emulator, and a small collection of demos and programs. |
| Bioeddie\'s_Psion_emulators Various emulators for Psion. |
| pocketemulator_com Emulators for Pocket PC. |
| Adobe_Systems Adobe Type Library offers a collection of quality fonts from internationally renowned foundries, as well as individual type designers and distinguished design studios. |
| Agfa_Monotype_Corporation Purchase libraries of typefaces from designers, and independent foundries. Also offers custom font design and font technology development. |
| Altemus_Collection Thousands of decorative and dingbat designs, fonts for Mac and PC. Over 50 unique fonts; stars, bursts, borders, sports, and spirals printers cuts. |
| Berthold_Font_Store A source of high-quality fonts for design professionals and other font users available for immediate purchase and download. |
| BuyFonts Vendor of TrueType and PostScript fonts, including Braille, OCR, bar codes, phonetic, mathematical, and symbolic fonts. |
| Chank The Chank Company manufactures and distributes a large selection of freeware and commercial fonts by type designers from all over the world. |
| Download-fonts_com Download mac fonts and windows fonts. Browse and download truetype fonts and postscript fonts. |
| Educational_Fontware,_Inc Handwriting fonts for teachers and homeschoolers. Very comprehensive list, many variations (dotted, outlines, arrows, rules) of each family (D'Nealian, Zaner-Bloser, Getty Dubay). |
| Faces Offers fonts from a number of foundries, royalty free photographs, picture fonts and clip art for download or on CD. |
| Font_Technology_-_Bitstream Bitstream is the leading developer of font technology, digital fonts, and custom typeface designs for a wide variety of markets. |
| Font_Works_Digital_Retail UK's principal font supplier representing over 100 foundries worldwide, |
| Fonts4eva Free and for-sale fonts and software which you can purchase to make your own fonts. |
| FontShop Offers font search by name, designer or foundry. Also provides custom creation and conversions, Font Feed, blog and magazine. |
| GraphicObsession Royalty free images, footage and fonts. Search, compare, test, purchase and download thousands of images and fonts. |
| Graphx_Edge Windows TrueType downloadable font collections includes script fonts, headline, unique and dingbat fonts. |
| ITC_Fonts The site of the International Typeface Corporation. A comprehensive typeface library,up-to-date and accurate information on new fonts, and an interactive online typesetter to view fonts with. A lot of |
| Kanecal Offers symbols used in drafting/blueprint callouts. Geometric Dimensioning and Tolerancing (GD&T) symbols (with Feature Control Frames) plus Statistical Process Control (SPC) symbols. Barcodes for |
| MICR_Encoding_Fonts__com Distributors of MICR E-13B and CMC-7 fonts for bank check printing. Fonts are available as PostScript, TrueType and PCL for Windows, Macintosh and UNIX. |
| MyFonts E-commerce offering a variety of choices, as well as an area to upload images. Includes information about designers and foundries. |
| Nextag_com-_Fonts_Software Several font collections on CDs |
| Phil\'s_Fonts Source for type and graphic software. Distributor of Postscript and TrueType fonts, from more than 75 foundries around the world also specializes in creating custom fonts. |
| School_Fonts Font sets compatible with the D'Nealian, and Zaner-Bloser methods of learning handwriting. Offers, cursive handwriting, Block letters, and kindergarten dingbats. Exercise sheets, free samples and comp |
| Terrapin_Solutions_Limited UK based company supplies typefaces from all of the major font manufacturers as well as a range of more modern and experimental designs from around the world. Language fonts, bar code and OCR fonts ar |
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Please copy/paste the following text to properly cite this HowStuffWorks article:Harris, Tom. "How File Compression Works." 18 January 2001. HowStuffWorks.com. <http://computer.howstuffworks.com/file-compression.htm> 03 December 2008. Inside this Article Introduction to How File Compression Works Redundancy and Algorithms Searching for Patterns Lossy and Lossless Compression Lots More Information See all File Sharing articles Computer Videos 
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If you download many programs and files off the Internet, you've probably encountered ZIP files before. This compression system is a very handy invention, especially for Web users, because it lets you reduce the overall number of bits and bytes in a file so it can be transmitted faster over slower Internet connections, or take up less space on a disk. Once you download the file, your computer uses a program such as WinZip or Stuffit to expand the file back to its original size. If everything works correctly, the expanded file is identical to the original file before it was compressed.At first glance, this seems very mysterious. How can you reduce the number of bits and bytes and then add those exact bits and bytes back later? As it turns out, the basic idea behind the process is fairly straightforward. In this article, we'll examine this simple method as we take a very small file through the basic process of compression.Most types of computer files are fairly redundant -- they have the same information listed over and over again. File-compression programs simply get rid of the redundancy. Instead of listing a piece of information over and over again, a file-compression program lists that information once and then refers back to it whenever it appears in the original program.As an example, let's look at a type of information we're all familiar with: words.In John F. Kennedy's 1961 inaugural address, he delivered this famous line:"Ask not what your country can do for you -- ask what you can do for your country."The quote has 17 words, made up of 61 letters, 16 spaces, one dash and one period. If each letter, space or punctuation mark takes up one unit of memory, we get a total file size of 79 units. To get the file size down, we need to look for redundancies.Immediately, we notice that:"ask" appears two times"what" appears two times"your" appears two times"country" appears two times"can" appears two times"do" appears two times"for" appears two times"you" appears two timesIgnoring the difference between capital and lower-case letters, roughly half of the phrase is redundant. Nine words -- ask, not, what, your, country, can, do, for, you -- give us almost everything we need for the entire quote. To construct the second half of the phrase, we just point to the words in the first half and fill in the spaces and punctuation.We'll look at how file-compression systems deal with redundancy in more detail in the next section. Next Page Inside this Article Introduction to How File Compression Works Redundancy and Algorithms Searching for Patterns Lossy and Lossless Compression Lots More Information See all File Sharing articles digg_url = 'http://computer.howstuffworks.com/file-compression.htm'; digg more 
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