when did the first macbook pro retina come out
MacBook Pro On June 11, 2012 at the Apple Worldwide Developers Conference in San Francisco, Apple introduced the third generation MacBook Pro, marketed as the "MacBook Pro with Retina display" to differentiate it from the predecessor model.[51] The new model includes Intel's third generation Core i7 processors (Ivy Bridge microarchitecture), USB 3.0, and a high-resolution 15.4" IPS 2880Ã—1800-pixel Retina Display.[52] Other new or changed features include a second Thunderbolt port, a HDMI port, and a thinner MagSafe port, dubbed the "MagSafe 2".[97] Apple introduced a 13-inch version on October 23, 2012 with specifications similar but slightly inferior to the 15-inch version's, such as less powerful processors.[98]
MacBook Pro Apple unveiled fourth generation 13- and 15-inch MacBook Pro models during a press event at their headquarters on October 27, 2016. The models introduced the Touch Bar, a multi-touch enabled OLED strip built into the top of the keyboard in place of the function keys. They include a sapphire-glass covered Touch ID sensor at the right end of the Touch Bar which doubles as a power button. The models also introduce a "second-generation" butterfly mechanism keyboard that provided more travel than the first iteration implemented on the Retina MacBook. The 13-inch model has a trackpad that is 46% larger than its predecessor while the 15-inch model has a trackpad twice as large as the prior generation.