Two monoshot multivibrators, one positive edge triggered $$\left( {{M_1}} \right)$$ and another negative edge triggered $$\left( {{M_2}} \right)$$ are connected as shown in figure.

The monoshots $${{M_1}}$$ and $${{M_2}}$$ when triggered produce pulses of width $${{T_1}}$$ and $${{T_2}}$$ respectively, where $${T_1} > {T_2}.$$ The steady state output voltage $${V_0}$$ of the circuit is

A $$3$$-bit gray counter is used to control the output of the multiplexer as shown in the figure. The initial state of the counter is $${000_2}.$$ The output is pulled high. The output of the circuit follows the sequence

A state diagram of a logic gate which exhibits a delay in the output is shown in the figure, where $$X$$ is the don't care condition, and $$Q$$ is the output representing the state.

The logic gate represented by the state diagram is

In $$8085A$$ microprocessor, the operation performed by the instruction $$LHLD$$ $${2100_H}$$ is