cs 201 assignmnet solution

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Assignment No. 02
Semester Spring 2010
Human-Computer Interaction-CS201
Total Marks: 15

Due Date: 27/04/2011
Objective:
To learn Boolean Logical operations and the basics of Word Processor and Spread Sheet
Instructions:
Please read the following instructions carefully before solving & submitting assignment:
Assignment should be in your own wordings not copied from net, handouts or books.
It should be clear that your assignment will not get any credit (zero marks) if:

o The assignment is submitted after due date.
o The submitted assignment does not open or file is corrupt.
o The assignment is copied from other student or copied from handouts or any internet source.
o Student ID is not mentioned in the assignment File or name of file is other than student ID.
o The assignment is not according to the given format

For any query about the assignment, contact at cs101@vu.edu.pk

GOOD LUCK


Question No.1 (Marks = 10)
a) How many combinations of bits are exist when we make a truth table of 9 inputs? (2 Marks)

b) Prepare a truth table for the following I = (w + x)  (y . z) where w, x, y and z are four binary inputs in the truth table. (8 Marks)
Note :symbol represent XOR gate)

Question No.2 Write any three features and two limitations of each one in the given format (Marks = 5)

Features: (3 Marks)
Sr.No. Word Processor Spread Sheet
1.

2.

3.


Limitations: (2 Marks)
Sr.No. Word Processor Spread Sheet
1.

2.








Note:

o Assignment should be in your own wordings not copied from net, handouts or books.

o Your answer should be “to the point”








Answer:-
Question No.1 (Marks = 10)
a) How many combinations of bits are exist when we make a truth table of 9 inputs?
2n are the total combinations of bits in Truth table, where n is number of variables, so
29=512
512 bits will there


b) Prepare a truth table for the following I = (w + x)  (y . z) where w, x, y and z are four binary inputs in the truth table.
Note :symbol represent XOR gate)
Solution:
Remember in XOR, output will high only if only all inputs are mismatch to each others.

Inputs Output
W X Y Z w+x y.z (w + x)  (y . z)
0 0 0 0 0 0 0
0 0 0 1 0 0 0
0 0 1 0 0 0 0
0 0 1 1 0 1 1
0 1 0 0 1 0 1
0 1 0 1 1 0 1
0 1 1 0 1 0 1
0 1 1 1 1 1 0
1 0 0 0 1 0 1
1 0 0 1 1 0 1
1 0 1 0 1 0 1
1 0 1 1 1 1 0
1 1 0 0 0 0 0
1 1 0 1 1 0 1
1 1 1 0 1 0 1
1 1 1 1 1 1 0




Question No.2 Write any three features and two limitations of each one in the given format www.vustudents.net

Features: (3 Marks)
Sr.No. Word Processor Spread Sheet
1. Good Formatting Hand with Good Mathematical Hand
Integrate technology
2. Real word 2d drawing Good Drawing, Flow chart
Features of Spell and Grammatical error and charts.
checking
3. Direct mail attachment and Data recovery Options Data recovery, AutoSave and
And much more much more




Limitations:
Sr.No. Word Processor Spread Sheet
1. Calculation of Functions and relationship Limited Format styles w.r.t
MS word
Up gradation is very costly.
2 3D drawing not sported. Animations and special
Effects not present

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