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My CS302 Today's paper. (Saifi) 1.How many inputs and outputs are there in a half-adder circuit. 2.Write four uses of Multiplexers. 3.A diagram of gates was given and we have to tell the binary values that when the door is  locked and when the door is unlocked, implement in binary’s. 4.Draw the diagram for 8-3 bit Encoder. 5.A Karnaugh map was given we have to implement the maximum gates relations for POS. 6.Draw the Diagram of PAL’s Block.

50% mcqs were from past papers 1) how can we use adder circuit for subtraction? 2) diff b/w BCD to 7-segment and binary decoder? 3) boolean expression with  2bit comparator

1.why 2-bit comperator is called parallel comperator?(2) 2.Write the three modes in which PALs are programmed?(2) 3.Breifly explain the floating point number?(3) 4.draw a diagram for 16-bit multiplexer?(3) 5.AND gate and its uses?(5) 6..Implement odd parity generator circuit and mapping it on k-map and simplify expression?(5)

CS302 Paper-5 21-12-2013 Q: why we use BCD (2) Q: Modes of PALs  (2) Q: from K-map build any equation (K-map is given)  (3) Q: In tri state buffer describes different ways to connect control line ?  (3) Q: Full Adder Table      (5) Q:NOR gate based S_R  Latch table  (5)  

 20 mcqs ... mostly frm past pprz ... 6 questionz .. 1 : K-map was given and we have to write the expression ... 2 : Implement a NOR based SR latch diagram... 3 : 2 bit camparator’s related  and write the value of A>B .. 4 : A diagram was given and labeling the diagram was required .. 5 : A question about telling whether it is SOP or POS ..