Posted by : Anonymous Thursday, 25 April 2013




Question 1                                                                                                                                          [5 Marks]

Convert the decimal numbers “129” and “478” into their equivalents in the followings:
a.      Binary
b.      BCD

(Show complete conversion steps)

Question 2                                                                                                                                          [5Marks]

a.      Perform binary addition of “129”  and “478”
b.      Perform BCD addition of “129”  and “478”

(Show complete addition steps)





Question 3                                                                                                                                          [10Marks]
Fill the empty columns in the table by performing each operation against each row.                                                                                                                                                                                                                         

A
B
C
X =
NOT(A XOR B)
Y =
B XOR C
X AND Y
0
0
0



0
0
1



0
1
0



0
1
1



1
0
0



1
0
1



1
1
0



1
1
1




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