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Pair 1 is m0.m1

Pair 2 is m10.m14

Quad 1 is m1.m3.m5.m7
Quad 2 is m6.m7.m14.m15

Reduced expression for Pair 1 is (A+B+C)
Reduced expression for Pair 2 is (A’+C’+D)

Reduced expression for Quad 1 is (A+D’)
Reduced expression for Quad 2 is (B’+C’)

Hence final POS expression will be
F (A,B,C,D)= (A+B+C) (A’+C’+D) (A+D’) (B’+C’)

Q7 (a) Differentiate between Hackers and Crackers? (2)

Ans. Hackers: Computer enthusiasts who enjoy learning about computer systems and get into other
system/network for gaining more knowledge or may find flaws in the system for rectification purposes.

Crackers: Malicious programmers who break into secure systems for stealing and corrupting/spoiling data.

(b) Expand the following terminologies: (1)

i) HTML ii) GSM