Comment by MrRadar

No mention of the PS/2 and Micro Channel Architecture? MCA was IBM's attempt to put the genie back in the bottle and redefine the PC back to being something they wholly controlled, and it utterly failed. It also didn't help that they were late to the market with 386-based computers (Compaq having beaten them to the punch with the Deskpro 386) which already signaled they were losing their market leadership position that allowed them to define the PC platform. In response to MCA, the PC industry formed an independent consortium to define the EISA bus and later Intel itself eventually took over as the de facto standards originator for PCs by developing PCI, USB, ATX, ACPI, AC'97/HD Audio, (U)EFI, and a large part of the other foundational standards on which modern PCs are built.