High Quality Content by WIKIPEDIA articles! The Personal System/2 or PS/2 was IBM`s third generation of personal computers. The PS/2 line, released to the public in 1987, was created by IBM in an attempt to recapture control of the PC market by introducing an advanced proprietary architecture. Although IBM`s considerable market presence ensured the PS/2 would sell in relatively large numbers, the PS/2 architecture ultimately failed in its bid to return control of the PC market to IBM, due to being a closed architecture requiring manufacturers to make royalty payments to IBM in order to develop and sell hardware compatible with the platform, which in turn raised costs for equipment purchasers at a time when the evolving Wintel architecture was seeing a period of dramatic reductions in price.