The number of comparisons carried out in a $$4$$-bit flash type $$A/D$$ converter is

The contents of the accumulator in an $$8085$$ microprocessor is altered after the execution of the instruction.

The stack pointer of a microprocessor is at $$A001H.$$ At the end of execution of following instructions, the value of stack pointer is _____________
$$\eqalign{ & PUSH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,PSW \cr & XTHL \cr & PUSH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,D \cr & JMP\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,FC70H \cr} $$

Figure shows $$a$$ $$b$$ $$c$$. resistive network and its graph is drawn aside. $$A$$ 'proper tree' chosen for analyzing the network will contain the edges :