June 2004
Intermediate to advanced
1056 pages
39h 58m
English
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What Is Classic?
To help bridge the application gap between Mac OS 9 and Mac OS X, Apple has built a virtual machine that enables you to run older Mac software under Mac OS X in the Classic Environment, or just Classic. Classic is an emulator that looks and feels just like Mac OS 9, and, in fact, it is—just slightly watered down.
Classic allows you to run most older Mac applications on Mac OS X without requiring you to boot directly into Mac OS 9. The big difference is that Classic applications won’t benefit from the features of Mac OS X, such as protected memory and its advanced printing capability. Meaning, if a Classic application crashes, it can bring down everything else running under Classic; just as a crash under Mac OS 9 could affect your entire system.
Additionally, some Control Panels (
→Control Panels),
such as Control Strip, Memory, and Remote Access, are disabled.
However, if you boot into Mac OS 9 instead of Mac OS X, you will be
using a full version of the OS. See Section 3.8 later
in this chapter for details on how to choose your Startup Disk.
If you want Mac OS 9 and Mac OS X on separate partitions, you need to partition your hard drive and reinstall both systems. In most cases, the biggest benefit to installing Mac OS 9 and Mac OS X on separate partitions is being able to choose which version of the OS to boot at startup by holding down the Option key. Otherwise, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.