Identifying Your Operating System Version, Processor Type, and Memory
Every Macintosh uses the Mac OS X operating system. However, dozens of different versions of the Mac OS X system have been released to date, such as version 10.4.11, 10.5.7, and 10.6. Many programs won't work if your computer uses a version of the Mac OS X program that doesn't meet the software publisher's requirements, so you need to know which version your computer is running before you buy.
In addition, many programs won't run unless your Macintosh has a minimum amount of available memory. For example, if your program needs 2GB (gigabytes) of RAM but your Macintosh has only 1GB of RAM, you can't run that program, even if your computer uses the correct version of the operating ...
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