For a feedback control system of type $$2,$$ the steady state error for a ramp input is

The unit impulse response of a system is given as $$c\left( t \right) = - 4{e^{ - t}} + 6{e^{ - 2t}}.\,\,\,$$ The step response of the same system for $$\,t \ge 0$$ is equal to

The Boolean expression for the output of the logic circuit shown in figure is

In a $$8085$$ microprocessor, the following instructions may result in change of accumulator contents and change in status flags. Choose the correct match for each instruction.