In a three stage counter, using $RS$ flip flops what will be the value of the counter after giving $9$ pulses to its input ? Assume that the value of counter before giving any pulses is $1$ : $1$ $2$ $9$ $10$

How many programmable fuses are required in a PLA which takes $16$ inputs and gives $8$ outputs? It has to use $8$ OR gates and $32$ AND gates. $1032$ $776$ $1284$ $1536$

Two eight bit bytes $1100 0011$ and $0100 1100$ are added. What are the values of the overflow, carry and zero flags respectively, if the arithmetic unit of the CPU uses $2$'s complement form? $0, 1, 1'$ $1, 1, 0$ $1, 0, 1$ $0, 1, 0$