Book excerpt: Mac computer is widely used and loved by many persons. Mac’s amazing OS X provides users with an enjoyable and extraordinary experience. The OS X is very easy to use and makes task that are normally complex or laborious effortless and pleasurable. Mac has further improved on the OS X Yosemite resulting in the significant strides in the performance of El Capitan. This has contributed to an extremely memorable experience showcasing results of weather, sports, stocks, web video, and transit information. The new feature spotlight allows you to locate your files - simply type it just as you would say it. You also have the flexibility of resizing your window, giving you the opportunity to reshape your window, seeing more results. Moreover, you can move it anywhere on your desktop.