COMPUTER SCIENCE ILLUMINATED
7th Edition
ISBN: 9781284208047
Author: Dale
Publisher: JONES+BART
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Chapter 4, Problem 41E
Program Plan Intro
Gate:
- A gate is a device which is used to perform the basic logical operation by accepting one or more input signals and producing the single output signal.
- The following are the three types of methods to represent the processing of gates:
- Boolean expressions
- Logic diagrams
- Truth tables
- There are several types of gates. The most common types are:
- NOT gate
- AND gate
- OR gate
- XOR gate
- NAND gate
- NOR gate
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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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