Quiz submission record for quiz4-1-2 at Tue Jul 13 09:42:47 2004:

Your Answer for Question 1:
The 'D' of the second flip-flop is now Q. So the output will differ from when there was only one flip-flop. Also I think there will be a time-lag in the clock signals and this can severely affect the output, because flip-flops only change their output at a clock edge.

Your Answer for Question 2:
1. Assembly line production in factories- say there are 4 steps to go from raw material to finished product. current state will be the level the product is at. The output holds the value of next-state. this continues until current state is 4, in which case, output will be the finished product. clock cycle will depend on the average time to go from one level to another.

2. Parking lot management- say there are a total of n parking spots, and at any given time there are m free spots. current state=m. when the input is a car-entering-the-lot, the next state will be m-1. if m-1=0, no more cars should be allowed to enter. when the input is a car-leaving-the-lot, the next state should be m+1. there should be a minimum clock cycle to take into account cars leaving and entering.

3. i imagine a situation in the kitchen when there are many things in the process of being cooked. say there is something baking in the over, something boiling, something being fried, and some veggies being cut. the machine will have to switch from one task to another depending on the urgency (baking time over, burning etc). 


Your unique submission ID is quiz4-1-2-cs61c-aq-1089736967-91.