Welcome to Inqilab Patel's Blog

Students' Resource centre, developed to facilitate students in their studies.

O/A Level Computer Studies with Inqilab Patel

A Highly experienced, well educated and self motivated computer teacher.

Ruknuddin Patel's Web portal

In touch with tomorrow

Inqilab Patel's Mag

Inqilab Patel's Magazine is a Students Resource Centre. It is developed to facilitate students of IT, O / A Level and Business Administration in their studies and to make them literate on current Global Political Issues.

RIC: Ruknuddin Institute of Computer

RIC: Ruknuddin Insitute of Computer (Management, IT) is established in April 15, 1995 by Inqilab Ruknuddin Patel. It is organising Skill Development Programmes (SDP) in the fields of Information Technology and Business Administration.

Tuesday, 28 April 2015

LOGIC GATES: X-OR Gate and Simplification of Circuit



LOGIC GATES




A
B
C

X
1
1
1


1
1
0


1
0
1


1
0
0


0
1
1


0
1
0


0
0
1


0
0
0


Q1)

A
B
C

X
1
1
1


1
1
0


1
0
1


1
0
0


0
1
1


0
1
0


0
0
1


0
0
0


Q 2) Complete the truth table for the following logic circuit:
 
Q3) Complete the truth table for the following logic circuit:
A
B
C

X
1
1
1


1
1
0


1
0
1


1
0
0


0
1
1


0
1
0


0
0
1


0
0
0


 




Q4) Complete the truth table for the following logic circuit:
A
B
C

X
1
1
1


1
1
0


1
0
1


1
0
0


0
1
1


0
1
0


0
0
1


0
0
0


 

Simplification Logic Circuit:

Simplification means reducing the number of components in a logic circuit. As a result of simplification the cost of production can be less. This can also improve reliability and make it easier to trace faults if they occur.

Q5) Show by drawing a truth table which single logic gate or what else has the same function as the logic circuit drawn in
a)
 
b)

c)
d)
 
What could replace the whole logic circuit?
a)
 
 
b)