I started off off with Mavericks and am at this time on Yosemite and do see how OS X has been injected with iOS paradigms. For me that turned out to generally be a benefit because I began off my Apple computing on iOS https://tesskdwp918472.blogsidea.com/36990328/the-smart-trick-of-used-macbook-air-that-no-one-is-discussing