About: System 3.0   Sponge Permalink

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System 3.0 debuted with the introduction of the Mac Plus in January 1986, and like the Plus changed the way Mac enthusiasts used their machines. The most notable upgrade to the system software since its inception, and only surpassed by System 7 and Mac OS 8 in functional and visual changes, it was a dramatic change from System 2.0.

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  • System 3.0
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  • System 3.0 debuted with the introduction of the Mac Plus in January 1986, and like the Plus changed the way Mac enthusiasts used their machines. The most notable upgrade to the system software since its inception, and only surpassed by System 7 and Mac OS 8 in functional and visual changes, it was a dramatic change from System 2.0.
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  • System 3.0 debuted with the introduction of the Mac Plus in January 1986, and like the Plus changed the way Mac enthusiasts used their machines. The most notable upgrade to the system software since its inception, and only surpassed by System 7 and Mac OS 8 in functional and visual changes, it was a dramatic change from System 2.0. A much more efficient Finder, now at version 5.1, had significantly improved responsiveness. This was in part due to the newly created Disk Cache, which would store frequently used routines and instructions in a chunk of memory. Besides this there weren't many new commands or interesting features added. So what was all the hoopla you ask? Well, it was the first full introduction of the Hierarchical File System (the system was actually first introduced with Apple's HD20 hard drive, but not publicly announced). HFS was more efficient, easy to use and robustly designed than the older Macintosh File System (MFS). The main benefit of HFS was the ability to nest folders (put folders within folders). MFS only allowed you to create folders at the root level, and they would not appear in Open/Save dialog boxes and would be lost when rebuilding the desktop. HFS took care of that, allowing you to create many nested folders allowing for better organization. System 3.0 was revered so much that it later went on to win InfoWorld Magazine's People's Choice Award for OS Environment of the Year. HFS was eventually replaced in Mac OS 8.1 with HFS Plus, which better calculates file block sizes according to maximum hard disk capacity, and has continued to be used by Apple in updated forms through OS X.
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