Welcome to 6th Annual National IT Aptitude test!

Over the last 5 years, NITAT has received over 5 Lakh Applicants of which over 1 Lakh IT aspirants have been offered scholarships in programs offered by Technology Majors to help them kick-start their IT careers!

Dec = 2007

1 a) i) How many bits are contained the 8 bits ?
ii)What is largest hex number that ca eb represented in 4 bytes ?
iii)What is the largest BCD encoded decimal value that can be represented in a 3 bytes ?
b) Show how to implement an OR gate with NOT and AND gate .

1 c)Perform the following operations .

a) Add +14 to – 17
b) Sub +17 from – 13 .

December 2008
1.Convert the equivalent hexadecimal number
i) (28)10
ii)(0101011.11)2
iii)(761)8
1 b) Prove usint Demorgan theorem
A.B + AB + A .B = A B

2.(a) Using the k-map , design the function of using NAND gates only .
b) Differentiate between decoder and demultiplexer .

3.(a)Draw and explain full subractor circuit .
b) What is Johnson's counter ? Explain its specific practical applications

Digital Electronics May 2009

1.(a) Realise EX-OR Gate with the help of 4 NAND gates only .
(b) Explain error detection and connection code .

2 .(a) Use Quine Mcluskey Method to solve the function and implement the function using NAND gates only .
f(A,B,C,D,E) = E (1,4,9,11,15,19,21,24,26,31)
(b) Design using NOR gates only
Y = (A + BC )(AB + BCD + CD )

3.a) Differentiate between Multiplexer and Encoder .
b) Draw and explain the circuit diagram of BCD Adder .

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MDU.li

Maharshi Dayanand University, Rohtak was established through an Act of Legislative Assembly of Haryana in the year 1976 with a specific objective-

“To establish and incorporate a teaching-cum-affiliating University at Rohtak for the encouragement of interdisciplinary higher education and research with special emphasis on studies of Life Sciences and Environmental and Ecological Sciences”. During the last over 26 years of its existence the University has achieved a remarkable degree of success in its expansion programmes, infrastructural developments and in academic excellence.

http://www.mdu.li/mdu_question_papers/Computer graphics2.pdf

http://www.mdu.li/mdu_question_papers/computer Graphics3.pdf

http://www.mdu.li/mdu_question_papers/Computer graphics1.pdf

http://www.mdu.li/mdu_question_papers/Computer Graphics.pdf

http://www.mdu.li/mdu_question_papers/Digital Electronics.pdf

http://www.mdu.li/mdu_question_papers/Digital %26 Analog Communication(2).pdf