Now, 31 years later, Apple (AAPL) and IBM (IBM) are new partners. Today, the two companies announced a new global partnership. They are going after the enterprise market with Apple's devices and IBM's network services. The official press release, which can be found on Apple's Web site here, lays out all of the details.
Apple and IBM have an infamous relationship. Back in the 1980s, they were feuding rivals. Both were going after the PC market. Apple was selling its Apple III at the time and IBM challenged Apple with its IBM PC. The rivalry was bitter, and Apple later bought a full page in the Wall Street Journal to spite IBM. But nothing compared to this photo of a wild Steve Jobs telling his competitors exactly how he felt: