In the first three months of 2017, Apple has already shipped approximately 4.2 million Mac devices globally. This is a 4.5% increase in its year-on-year numbers. 

Apple still remains in fifth position in vendor rankings though. Lenovo remains the world's largest PC distributor controlling nearly 20% of the market, but sales of PCs are on the decline and analysts say that "business users are the key to future PC success." 

One Gartner analyst said, "Winners in the business segment will ultimately be the survivors in this shrinking market."