1 MacBook
Apple was churning out fantastic laptops like the iBook and PowerBook long before the MacBook was unveiled in 2006. And while the original MacBook was a breakout success in itself, Apple ultimately decided to expand the line and incorporate a number of models in the years since — such as the MacBook Air from 2008, 12-inch MacBook from 2015, and the MacBook Pro with OLED Touch Bar introduced in 2016.
It all started with the Retina-equipped, aluminum unibody MacBook Pro from 2012, which not only came to be the the most iconic and widely adopted form-factor, but has served as a template of sorts for all the newer, faster, thinner MacBook offerings released since then.
The 2012 MacBook Pro with 13-inch Retina display, in particular, is so popular that’s it’s even still available for sale on Apple’s website. It’s the last MacBook Pro model to boast a side-loading DVD/ROM drive, and the last featuring user-upgradeable RAM, according to blogger and software developer, Marco Armani.

Since its release in 2008, meanwhile, Apple’s ultra-portable MacBook Air has been “reimagined” in the form of just about every Windows- or Chrome OS-powered netbook available. It’s a wildly popular and impossibly thin form-factor, which has since been hailed as one of the company’s most successful product launches to date, according to DigitalTrends.