copmputer concepts

1. Application Software
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2. Application Software
Learning Objectives
• Define Application Software
• Identify its common features
• Describe (office) productivity software tools
• Explain software release and installation
• Software compatibility, copy wright and
license issues
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3. Software Layers
User
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4. Software Types
• Application Software
– The software developed to perform the many
tasks to which the computer is applied
– Many types.. For work, study & play
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5. Group problem solving
• What are the sources of application software
for an organization?
• Compare the relative merits of each
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6. Application Software
Sources
•Custom written software
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7. Application Software
Sources
• Custom written software
• In house
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8. Application Software
• Sources:
– Custom written software
– In house
– Packaged (off-the shelf)
• Comparisons
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9. Application Software
Basic Features
• GUI (Windows-based)
• Dialog boxes/Windows
• Menus/Toolbars
– Menu bar
– Pull-down menu
– Help menu
• Mouse cursor
• Scrolling
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10. Application Software
Basic Features (cont.)
• Special-purpose & function keys
• Macros
• Tutorials
• Wizards
• Documentation
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11. Application Software
Major Types:
• Business Applications
– Office productivity
– General purposes
– Industry specific
– Special purpose
• Education
• Recreation
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12. Software Development
Flow Charting
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13. Software Development
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14. Software Development
• Structure Charts
• Pseucode
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15. Software Development
Structure Chart
Sales
Input data
Calculated
Gross sales
Calculated
Discounts
Out Put
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16. Software Development
Structure chart
Thumbnail
Process
FormattingInput
Output
Problem
Definition
Off-page
Connector
Out put
Decision
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17. Pseudcode
Sales problem
1. Input Item, Price, Qty
2. GrSales=price*Qty
3. If Qty>50
Then disc = GrSales*1
Else Disc = 0
4. Net sales = GrSales – disc
5. Output Item, Netsales
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18. Software Development
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19. Programming Languages
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20. Programming Languages
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