Question B$5$

Consider the following circuit.

$($a$)$ Draw the state table and state diagram when input $x=1.$

$($b$)$ What kind of circuit is this when $x=1?$

$($c$)$ What is the use of input $x?$

Programmable logic device $($PLD$)$ contains AND Array and OR Array.

$($d$)$ Suggest which parts, the AND array or the OR array or both, is $/$ are programmable in the

following PLDs: $($i$)$ ROM, $($ii$)$ PAL devices, and $($iii$)$ PLA.