Classic Mac OS Classic Mac OS is a colloquial term used to describe a series of operating systems developed for the Macintosh family of personal computers by Apple Inc from until The Macintosh operating system is credited with having popularized the graphical user interface concept It was included with every Macintosh that was sold during the era it was developed, and many updates to the system Mac OS X Tiger Mac OS X Tiger version . is the fifth major release of Mac OS X now named macOS , Apple s desktop and server operating system for Mac computers Tiger was released to the public on April , for US . as the successor to Mac OS X . Panther.Some of the new features included a fast searching system called Spotlight, a new version of the Safari web browser, Dashboard, a new Uninstall Flash Player for Mac OS Adobe Help Center In Safari, choose Window Downloads If you are using Mac OS X . Lion , click the Downloads icon displayed on the browser. Mac OS X Cheat Sheet Microsoft Office Training Apple Mac OS X Cheat Sheet The Mac OS X Desktop Shortcuts General Quit Application Q Minimize Window M Minimize All Switch Option to New Application toolbar Click Print a File P Open a File O Close a Window W Select All A Undo Z Redo or Repeat Y Switch Between Tab Open Applications The Mac OS X Command Line Unix Under the Hood The Mac command line offers a faster, easier way to accomplish many tasks It s also the medium for many commands that aren t accessible using the GUI. How to Clean Caches Temporary Files from Mac OS Apr , Some Mac users may want to clear caches and clean out temporary files from Mac OS Caches and temporary files can include things like web browser cache and history, messaging cache, app specific temp files and caches, partially completed downloads, and much . Classic Mac OS Downloads and Updates Low End Mac We believe in the long term value of Apple hardware You should be able to use your Apple gear as long as it helps you remain productive and meets your needs, upgrading only as necessary. Mac OS X version Snow Leopard Mac Mac OS X Snow Leopard is an even powerful and refined version of the world s most advanced operating system In ways big and small, it gets faster, reliable, and easier to use. OS X El Capitan Update Available for Mac May , Apple has released OS X El Capitan for Mac users, the update includes bug fixes and improvements to the Mac operating system and is recommended for all users running a prior version of El Capitan. Symbol Codes Home The Penn State Symbol Codes site is migrating to Sites at Penn State and has been significantly updated See the directory below for site content.