RAY, JOHN — My Macbook Lion Edition

Indianapolis, IN: Que Pub, 2012. 4th Printing. Paperback. ISBN: 0789748320. Trade PB. Color Illustrations; This is a thick trade sized paperback book. The book is in Very Good condition and was issued without a dust jacket. There is some beginning rubbing and wear to the spine ends and corners of the book covers. The text pages are clean and bright. "Lion was released to manufacturing on July 1, 2011, followed by its final release via the Mac App Store on July 20, 2011. Apple reported over one million Lion sales on the first day of its release. [12] As of October 2011, OS X Lion had sold over six million copies worldwide. Mac OS X 10.7.1 was the last version of Mac OS X released under CEO Steve Jobs. 10.7.2 and later were released under CEO Tim Cook. 10.7.5 added Gatekeeper. Lion is the first version of macOS that did not support 32-bit processors and is also the final release whose development was overseen by Bertrand Serlet, considered to be the "founding father of Mac OS X". Although originally paid, Apple later allowed free downloads of the OS, especially for customers of older and no longer officially supported Mac computers, starting on June 30, 2021. The same practice was applied to its successor, OS X Mountain Lion. " (from Wikipedia). Very Good .