Mac OS 9
Left fine 1999, Mac OS 9 is the last major revision of the first Operating system of the computers Apple Macintosh.
Mac OS 9 is very similar to its predecessor Mac OS 8 and it can be regarded as a species of transition before the passage to Mac OS X, from which architecture is completely different. It is nevertheless the most succeeded version and most stable of the Mac original OS: contrary to the preceding versions, Mac OS 9 is written entirely in compatible code PowerPC, which improves its operation on the Macintosh containing processor PowerPC, but which n the other hand made that the the first Macintosh containing Motorola 68000 are not compatible any more. When Mac OS X leaves in April 2001, Mac OS 9 continuous with being provided on new the Macintosh under the name of Classic . Classic can function in emulation under Mac OS X in order to launch the applications which are not compatible with this one. The Macintosh sold after 2004 cannot start any more under Mac OS 9.
Main new things
The main new thing of Mac OS 9 is the support of the multi-user one. OpenTransport largely was also improved. Mac OS 9 was provided with a new version of its integrated retrieval software: Sherlock 2. The windows posted now small icons beside their titles which in addition to one esthetic aspect made it possible to facilitate certain handling.
History of the updates
- April 4th 2000: Mac OS 9.0.4
- January 9th 2001: Mac OS 9.1 (primarily correction of bug and improvement of stability and the performances)
- August 21st 2001: Mac OS 9.2.1 (only operation of the Classic environment within Mac OS X improves)
- December 5th 2001: Mac OS 9.2.2 (last version of Mac OS Classic before the abandonment of the development in May 2002)
Mac OS 9.2.2 is thus the updated 46e of the original system. It there forever have rupture in the development, with the result that MacOS 9 was not regarded as a modern operating system .
In spite of that, Mac OS 9.2.2 continues to be delivered with all new Macintosh containing processor PowerPC under name " Classic" , which allows, by means of an elaborate emulator turning in Mac OS X, to make turn the programs programmed for Mac OS 9 and precedents.
Attention, Classic does not function any more on new MacIntel. However, there exist emulators, such SheepShaver, which make it possible to make function the majority of the applications by emulating a Power PC G4 100 MHz, of Mac Os?? to 9.0.4.