After defying industry trends in recent years, Apple is feeling the slowdown in global purchases of laptop and desktop computers.
Apple shipped 4 to 8 percent fewer Mac computers during the second quarter of 2016, compared with a year earlier, according to new estimates from two research firms — even while some of its bigger rivals managed to find growth in the PC business.
Apple enjoyed steady increases in Mac sales for most of 2014 and 2015, while the rest of the PC market was in a slump. Although the leading PC-makers sell more units, Apple's Macs tend to command both higher prices and consumer loyalty.
But Apple Inc. has been reporting a dip in Mac unit...