Lab#3
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CS1150-Lab3.pptxLab # 3 Overview
Learn How Negative Numbers are Represented in Computers
Sign-Magnitude and Two’s Complement Representations
Learn How Colors and Text are Represented in Computers
Lab #3 Due Date - September 28, 2018 11:55 PM
CS 1150 - Lab 2 - Exploring Number Systems
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How to Submit Lab # 3
Soft copy
Go to Pilot Course Page and Use the Dropbox Submission Link to upload your files
CS 1150 - Lab 2 - Exploring Number Systems
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Sign-Magnitude Representation
CS 1150 - Lab 2 - Exploring Number Systems
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Sign-Magnitude Representation
Sign – Ordering of the number (Positive or Negative)
Value – Magnitude
Source – CS 1150 Slides for Data Representation by Karen Mayer
Two’s Complement
CS 1150 - Lab 2 - Exploring Number Systems
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MSB Represents the Sign
Negative – MSB is 1
Convert numbers to Two’s Complement
Invert the bits and add 1
Source – CS 1150 Slides for Data Representation by Karen Mayer
Lab #3 – Exercise 1
CS 1150 - Lab 2 - Exploring Number Systems
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Run Negative Binary Numbers Applet
Representing Text
CS 1150 - Lab 2 - Exploring Number Systems
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ASCII Character Set
7 bits to represent a character + 1 check bit
First 32 ASCII characters are special purposes – Eg Tab, Return
Unicode Character Set
16 bits to represent a character
Can represent every character in every language in the world
8 Bits = 1 Byte
Lab #3 – Exercise 2
CS 1150 - Lab 2 - Exploring Number Systems
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Run Character Codes Applet
Lab #3 – Exercise 3
CS 1150 - Lab 2 - Exploring Number Systems
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Run Text Encoding in ASCII Applet
Lab #3 – Exercise 4
CS 1150 - Lab 2 - Exploring Number Systems
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Run Color Maker Applet
