MacBook "Core M" 1.2 12-Inch (Early 2015) and its slightly lower-end brother -- the MacBook "Core M" 1.1 12-Inch (Early 2015) -- are radically different than their predecessors. "Reinvented" for the ultimate in portability, the "Early 2015" MacBook models are even lighter and thinner than the smallest models from the MacBook Air series, and with just one USB-C port for connectivity and a headphone jack, the hardware more resembles an iPad with an attached keyboard than it resembles earlier Apple notebooks.