Introduction To Computing (CSE145)
Fall 2009
Assignment # 2
Handed to students:
Due Date:
Instructor:
Class:
September 24, 2009
September 28, 2009
Asma Sanam Larik
BS-1
Introduction:
This document outlines the assessment arrangements for the Assignment#2 for CSE145
Introduction to Computing. For this assignment the students are required to submit the
solutions hand written on stapled sheets. All the steps should be done properly. Single
line answer would be marked as incorrect.
Topic Covered:
Number Systems including Hexadecimal, Octal and Binary Number System
Note:
 Late submission under any circumstances is not allowed.
 It is strongly recommended that you attempt and submit all the questions.
Exercises:
Question # 1 : Convert these binary numbers to decimal:
a.10101
b.1101000111101
c.10010110
d.101010101010
e. 101011111
Question # 2 : Convert the following decimal values to binary:
a.58
b.2032
c. 5696
d.2688
e.1652
f. 2313
g.3.578
h. 123.750
Question # 3: Convert the following octal numbers to decimal:
a.743
b.365
c.3777
d.257
e.1204
Question # 4: Convert the following decimal values to octal:
a.59
b.65536
c.255
d.375
e.819
f .76524
Question # 5: Convert the following hex values to decimal:
a.92
b. FF
c.2C1
d.37FD
e.1B9
Question # 6: Convert the following decimal values to hex:
a.75
b.314
c.4095
d.25619
e.65760
Question # 7: Add the following binary numbers:
a.1010 + 1011
b.
0.1011 + 0.1111
c.
d.1011.1101 + 11.1 e.
10011011 + 10011101
1111 + 0011
Question # 8: Subtract the following binary numbers:
a.101011100 – 11101110
b.101010100 – 1111000
c.111100000 – 10101111
d.100000111 – 000001101
Question# 9: Convert the following numbers with the indicated bases into decimal:
a. (4310)5
b. (6241) 7
c. (85231)9
d. (AB36)16
e. (7D5C)16
Question 10 : Perform the following operations:
a.
b.
c.
d.
e.
f.
g.
h.
i.
(4817)16 + (792B)16
7925116 + 3A1E116
CD6616 + B23A16
D42316 – A99916
14028 + 25378
0110011112*011010102
101516 * F216
3268 * 668
(A5B6)16 – (58D)16
 Good Luck 