Intel 80186
From Computer History Wiki
The i80186 was the first generation x86 cpu. The 80186 included various embedded features, like clocks, & bus controllers, however this made the cpu incompatible with the 8086 cpu, setup found in IBM PC's. This cpu was largely overlooked as the 286 cpu was more compatible then the 80186 for the construction of PC's..
The next cpu in the x86 linage is the i80286 cpu.
