Computer Science Illuminated
6th Edition
ISBN: 9781284055917
Author: Nell Dale, John Lewis
Publisher: Jones & Bartlett Learning
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Chapter 11, Problem 31E
Program Plan Intro
File:
- A group of interrelated data is called as file.
- Image file and text file are some types of files.
- Image file:
- Image file stores the digital images.
- It can be saved with the extension “.jpeg”, “.gif”, and “.tiff”.
- Text file:
- A text file simply contains the information or data which can be in human readable format.
- It can be saved with the extensions “.rtx”, “.txt”, and “.doc”.
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I need help creating the network diagram and then revising it for the modified activity times.
Activity No.
Activity
Time (weeks)
Immediate Predecessors
1
Requirements collection
3
2
Requirements structuring
4
1
3
Process analysis
3
2
4
Data analysis
3
2
5
Logical design
50
3,4
6
Physical design
5
5
7
Implementation
6
6
c. Using the information from part b, prepare a network diagram. Identify the critical path.
Given the following Extended-BNF grammar of the basic mathematical expressions:
Show the derivation steps for the expression: ( 2 + 3 ) * 6 – 20 / ( 3 + 1 )
Draw the parsing tree of this expression.
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Computer Science Illuminated
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