and distributed by Apple, Inc. Macintosh computers have a specialized operating system, which differentiates from Microsoft's Windows operating system. Macintosh computers have a user friendly interface
and are reportedly less likely to get viruses that other operating systems. Macintosh computers may also be referred to as Macs. The prototype
for the Macintosh computer, called "Lisa", was first introduced in 1983 and retailed at $10,000.