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EDU Free Textbook - Resource Sites Hide
These sites provide a ton of free materials that can supplement most any type of course.
Free educational eBooks, Videos, Audio and self-paced courses.
Free open-source e-textbooks on dozens of topics.
Thousands of free educational, multimedia resources on virtually any topic.
Hundreds of free Learning Guides, Test Preps,  Study Tools etc.
Software at Discount Prices Hide
Purchase Software at EDU discount prices
Huge savings on MS Office and other software with proof of being a student. (see site for details)
Software at EDU discounts site #2
Varsity Buys is another partner website which allows CMU students to get software at big discount pricing.
File Helper Applications Hide
Adobe Reader
Adobe Reader is a free viewer for PC's or Macs for viewing documents saved in the ".pdf" format.
VideoLAN Client (VLC)
VLC is a free multi-purpose digital media player. It will open and play/view nearly every kind of internet multimedia file type such as photos, music/audio, and movies. It is Multi-Platform so works on PC's or Macs
7-Zip is a free file archive/expansion program that works with a variety of compression formats. such as .zip or .rar. Large files are often compressed before uploading/downloading to save drive space and bandwidth. This program works on both PC's and Macs.
Formerly called OpenOffice, this program is a free alternative to Microsoft Office. It is not 100% compatible since MS Office is a copyrighted commercial program, but it will open most MS Office files (Word, PowerPoint, Excel) and can save its own files in an MS Office compatible file format. It has a wordprocessor, spreadsheet, presentation tool, database, and graphics editor. It works on both PC's and Macs.
This free utility allows Windows PC's and Macs to open and view MacOS X multimedia files primarily in the .mov movie format.
This free media viewer and organizer allows PC's or Macs to download, import and play a variety of internet based music and movies. Some are free and others must be purchased through the iTunes Store, or you can import your own music from CD's. Works with iPods, iPhones in addition to computers. (* Note* Quicktime must be installed before installing iTunes)
Audacity is a free, powerful Audio recorder and editor for PC's or Macs. Use the latest "beta" version for newer computers or operating systems. To save files as MP3's you must download and install a separate free extension. Instructions are on the Audacity website. You can open/play MP3's without the add-on, it is only needed if you wish to save or change MP3's.
Firefox is a free alternative web browser for PC's or Macs. It is recommended for use with myCMU. 
Microsoft Word files Viewer only
This free utility allows users who do not own Microsoft Word to open/view Word wordprocessing documents.
Microsoft PowerPoint Viewer only
This free utility allows those who do not own Microsoft PowerPoint to open/view PowerPoint presentations.
Microsoft Excel Viewer only
This free utility allows those who do not own Microsoft Excel to opern/view Excel spreadsheet files.
Office Compatibility Pack
This free add-on allows versions of Microsoft Office older than v.2003 to open the "new" v.2007 + .docx, .pptx, .xlsx file formats with their older program.
Adobe FLASH plugin
This is the required Adobe FLASH PLAYER browser plugin. There is a DIFFERENT ONE for EACH browser. (I.E, Firefox etc) Go to the download website Using Each Browser and download/run the appropriate installer. It should Auto-Detect the correct one for your browser. DO NOT checkmark/Install the "Optional" product. Usually a McAfee, ASK, or Google Chrome product. They are NOT needed and are there as paid for commercial "spamware".
Adobe Acrobat Reader is required to view and print PDF files.