# Computer essentals

Unit I Homework Assignment
In addition to the required readings in this unit, the Unit Study Guide covers many of the topics in this assignment.
1. Identify the decimal equivalents for the following (use the binary chart in the study guide):

2^0

=

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1

2^1

=

2^2

=

2^3

=

2^4

=

2^5

=

2^6

=

2^7

=

2^8

=

2. Manually convert the decimal numbers into binary numbers in the table below. You must show your work using the conversion process.

Decimal

Binary

Conversion Process

115

1110011

115/2=57   R1, 57/2=28 R1, 28/2=14 R0, 14/2=7 R0, 7/2=3 R1, 3/2=1 R1, 1/2=0 R1
So,   from last to first, the binary would be 110011

100

32

1000

99

256

111

1024

108

112

27

96

46

48

3. Manually convert the binary numbers given into decimal numbers in the table below (use the chart that displays the binary to decimal conversion in the study guide). You must show your work using the conversion process.

Binary

Decimal

Conversion Process

1101001

105

(1101001)2   = (105)10 or 64+32+8+1=105

100

0100000

110110

1110011

1111000

1101001

101

10000

1101000

1010100

1111

1100

10101

4. Describe what is wrong with the following sequence (use the chart that displays the binary to decimal conversion in the study guide). Place your answer in the text box beneath the sequence.
10 100 110 1000 1001 1100 1110 1000
5. Review the Concept Map on page 117 of your textbook, and fill in the blanks of the Concept Map in the table below.

a.

b.

c.

d.

e.

f.

g.

h.

i.

Calculator

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