The MacBook is Apple's third laptop computer family, introduced in 2006 (see PowerBook and iBook). In 2015, new MacBooks featured Apple's Retina Display and higher resolutions, as well as the Force Touch trackpad that senses different pressure levels. By the end of 2016, all MacBooks used solid state drives (SSDs).MacBook ProThe MacBook Pro was the first Mac laptop to use Intel CPUs, and the Pro line offers the fastest processors and largest screens (see MacBook Pro).The Non-Pro, Non-Air MacBookThe "just plain" MacBook is Apple's entry-level laptop. Debuting in 2007, it was dropped in 2011 only to be resurrected thinner and lighter in 2015 with a USB-C port for both charging and connectivity (see USB Type C).MacBook AirLaunched in 2008, the Air's touchpad added gesture-based multitouch introduced on the iPhone. In 2018, the Air added a high-res Retina Display, Touch ID and USB-C ports. The Air without the Retina Display screen was the entry-level laptop until 2015. See Macintosh Portable, PowerBook, iBook and Macintosh.CURRENT MACBOOK MODELS SSD MaxScreen Storage RAM WeightSize (GB) (GB) (lbs)Pro TB* 15" 256-4096 32 4.02 Pro TB* 13" 128-1024 16 3.02 Air RD** 13" 128-1024 16 2.75 MacBook12" 256-512 16 2.03 * Touch Bar ** Retina Display.