Figure shows the root locus plot (location of poles not given) of a third order system whose open loop transfer function is

When subjected to a unit step input, the closed loop control system shown in the figure will have a steady state error of

The $$8085$$ assembly language instruction that stores the content of $$H$$ and $$L$$ registers into the memory locations $$2050H$$ and $$2051H,$$ respectively, is

If $${X_1}$$ and $${X_2}$$ are the inputs to the circuit shown in the figure, the output $$Q$$ is