Apple is now offering redemption codes on its online store for both OS X 10.7 Lion and OS X 10.8 Mountain Lion for users of older Macs who have not previously purchased the software, reports TechCrunch. Lion and Mountain Lion, which are no longer available for download directly from the Mac App Store, can be bought for $19.99 each. Purchasing either one of the older operating systems will result in an email with a content code that can be redeemed within the Mac App Store. If you need to purchase Mac OS X 10.8 Mountain Lion, you may o
