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Mountain Lion easter egg references debut of original Apple Macintosh

Incomplete downloads in OS X 10.8 Mountain Lion show a "Date Modified" of Jan. 24, 1984, a reference to the day when Apple's very first Macintosh was unveiled by Steve Jobs.

The "easter egg" found in the latest version of Apple's Mac operating system was highlighted by Gizmodo on Thursday. The "Date Modified" temporarily shows up in Finder for any download in progress, including applications being downloaded from the Mac App Store.

Jan. 24, 1984, was the date Jobs took to the stage to show off the very first Macintosh in a live demonstration. The presentation from Jobs stirred an audience of more than 3,000 people into a frenzy when the computer read aloud, "Hello, I'm Macintosh. It sure is great to get out of that bag."

The 1984 easter egg found in Mountain Lion joins a number of other small references found within the OS X operating system. One of the most well known are the words on the TextEdit application icon, which features the script for Apple's iconic "Here's to the Crazy Ones" advertisement, which kicked off the "Think Different" campaign.

Jan. 24, 1984


OS X also includes a subtle jab at Windows-based machines. Microsoft's infamous "Blue Screen of Death" can be seen on a plain grey monitor when viewing information about a non-Mac networked computer in OS X.

Below, see Jobs' rousing presentation of the very first Macintosh on Jan. 24, 1984: