Apple recently introduced a new Macintosh operating system called System 7 (see "Mac's System 7," State-of-the-Art Contractor, 1/93). It has since been upgraded, and the new version (System 7.1) contains some changes that really give you the opportunity to create a desktop that is "builder friendly" — in other words, a customized system of tools that lets you get to your office work and get it done efficiently, quickly, and accurately. All the parts of System 7 — the folders and files that combine to give your computer its personality or interface — "live" in the System folder on your hard drive. Let's take a look at several of the more important folders, including Apple Menu Items, Startup Items, Control Panels,