According to an Asymco report (, Apple has whittled down the Windows-to-Mac OS ratio “dramatically” in the past several years — and that ratio is even more impressive when figuring in OS X plus iOS devices. According to Asymco:

° The ratio of Windows PCs to Macs in 1995 was 15:1.

° By 2004 the ratio had dropped to 7:1, thanks to the growing popularity of laptops — and the MacBook.

° Currently, if you figure in both OS X and iOS devices, the ratio is about 2:1.

° “Considering the near future, it’s safe to expect a “parity” of iOS+OS X vs. Windows within one or two years,” says Asymco. “The install base may remain larger for some time longer but the sales rate of alternatives will swamp it in due course.”