As the following architectural block diagram illustrates, MAE utilizes three distinct layers: Macintosh Desktop Services, Macintosh Application Engine, and Host System.
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User Interface and | Macintosh Finder | 680x0 Applications |
Desktop Services ------------------------------------------------
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| Macintosh System 7 Toolbox |
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Application Engine | Macintosh System Services |
& System Services | ----------------------- |
| | Mixed Mode Manager | |
| |-----------------------| |
| | 68LC040 Emulator | |
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| X Window System | |
------------------- |
Host System | UNIX Operating System |
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| RISC Hardware |
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Apple designed these layers and their components to achieve the best integration with the X Window System, UNIX operating system and RISC-based hardware.
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