DataStructuresandtheAnatomyofaFile·Chapter7 195 Why is this important? For a long time, people have been looking for ways to hide information. The prevalence to hide potentially sensitive information increases with the importance of the information. A simple way to accomplish this is by changing the file extension. Another way is to use encryption, a topic we will discuss later in this chapter. The Apple Platform Although Microsoft is by far the most dominant force in the computer office space, Apple has finally begun to make some serious progress. In the early years of computing, Apple created the point-and- click environment. This and other Apple innovations quickly found their way into Microsoft software. As these changes were occurring, IBM gained ground in the office space market. However, after a series of good strategic moves, including moving onto Intel-based platforms and reliance on Free BSD as the core of its operating system in 2007, Apple began to finally make significant gains in market share. For years, Apple was regarded as the graphics platform, which meant that if you wanted to create high-end computer graphics you used an Apple computer. However, with the release of the Tiger and then Leopard operating systems, many corporate executives began at ask their support teams to give Apple a try, hence their relevance to the discussion of file anatomies in e-discovery. The core Apple operating system is nothing like the core of Windows, although both operating systems use file associations to help determine file type. Apple uses a series of rules the first three of which follow: