Scientific mode supports exponents and trigonometric functions, and programmer mode gives the user access to more options related to computer programming. Basic includes a number pad, buttons for adding, subtracting, multiplying, and dividing, as well as memory keys.

It has three modes: basic, scientific, and programmer. Apple also used to have OS X 10.6 Snow Leopard available for a fee, but it is no longer purchasable.Calculator is a basic calculator application made by Apple Inc.

Mavericks was free to download, and Apple has not charged for Mac software since then outside of the legacy Lion and Mountain Lion updates. Apple began making Mac updates free with the launch of OS X 10.9 Mavericks, which also marked the shift from big cat names to California landmark names. The $19.99 fee dates back to when Apple used to charge for Mac updates. Macs that shipped with Mac OS X Mavericks or later are not compatible with the installer, however.

MacBook (Late 2008 Aluminum, or Early 2009 or newer).

Mac OS X Mountain Lion is compatible with the following Macs: Mac OS X Lion is compatible with Macs that have an Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor, a minimum of 2GB RAM, and 7GB storage space. Apple recently dropped the $19.99 fee for OS X Lion and Mountain Lion, making the older Mac updates free to download, reports Macworld.Īpple has kept OS X 10.7 Lion and OS X 10.8 Mountain Lion available for customers who have machines limited to the older software, but until recently, Apple was charging $19.99 to get download codes for the updates.Īs of last week, these updates no longer require a fee, and can be downloaded from the OS X Lion and OS X Mountain Lion support documents on Apple's website.

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