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Posted Date: 17 Sep 2012      Posted By:: Rajneesh Gupta    Member Level: Gold    Points: 5 (Rs. 5)

# 2012 Lovely Professional University B.Tech Computer Science and Engineering Digital electronics circuits(ece202) Question paper

 Course: B.Tech Computer Science and Engineering University/board: Lovely Professional University

This is an assignment of DIGITAL ELECTRONICS CIRCUITS(ECE202) given to B.tech CSE students of LPU. I have already posted set one earlier in this site. This is set two. You can download it from here.It is an original question paper of course Digital electronics circuits of year 2011. This question paper will help you to get an idea of what types questions come in the examination that you are preparing for.

DIGITAL ELECTRONICS CIRCUITS(ECE202)
Assignment 1
M.M:20 marks

Attempt all questions. All Questions carry equal marks.
1.(a) Find the 2s complement of the following binary numbers:
A. 101110 B.110011.11

1.(b) Find the 5s and 10s complement of the following:
A. (43210)6 B. (000000)10

2.(a) Find the largest binary number that can be taken with 16 bits decimal number.
2.(b) Convert the following numbers from given number system to desired number system.
a. (123)6 =( ? )3 =( ? )2 =( ? )5=( ? )10=( ? )7=( ? )8=( ? )16
b. (123)11 =( ? )2 =( ? )4=( ? )10=( ? )7=( ? )8=( ? )16

3. Covert the following letters in ASCII Code.
1. DEVYANI
2. s14

4.(a) Draw a circuit to realize the function:
F= ABC+DE+F
using NOR gates only
4.(b) Simplify the expression Z=AB+AC+ABC(AB+C). Implement using minimum number of NAND Gates.

5. Given the Boolean function:
XY+XY+YZ
Implement it (i) with OR and NOT gates.
(ii) with AND and NOT gates.

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