Information systems software

Chapter 7 Information Systems Software

What is software? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Framework for Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Relationship between Software and Hardware

Relationships between User, Software and Hardware Print on screen, Read keyboard entries, Write files on disk,... Surf Web, Format document, Play games,... Hardware System Software Application Software User

What is an operating system? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OS Design Objectives ,[object Object],[object Object],[object Object]

Operating Systems - Continued ,[object Object],[object Object]

Multiprogramming ,[object Object],OS Word Unused OS Word Unused Netscape PowerPoint Traditional Memory Allocation Multiprogramming Memory Allocation

Virtual Memory ,[object Object],[object Object],[object Object],[object Object]

Thrashing: The law of diminishing returns Throughput (CPU Utilization) Degree of Multitasking Thrashing

[object Object],[object Object]

Popular Operating Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Popular Operating Systems ,[object Object],[object Object],[object Object],[object Object]

Application Software ,[object Object],[object Object],[object Object],[object Object],[object Object]

Development tools: 4 generations of programming languages ,[object Object],[object Object],[object Object],[object Object]

Language Translation ,[object Object],[object Object],[object Object]

The Language Translation Process

Fourth-generation Languages ,[object Object],[object Object],[object Object],[object Object]

PC Software Tools ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Object-oriented programming ,[object Object],[object Object],[object Object],[object Object],[object Object]

Class, subclasses, inheritance, and overriding

JAVA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changes Ahead ,[object Object],[object Object],[object Object]

Hypertext Markup Language ,[object Object],[object Object]

Trends In Software Capabilities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How to Choose Software ,[object Object],[object Object],[object Object],[object Object],[object Object]

Challenges ,[object Object],[object Object]

FREEWARE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Information systems software

Information systems software

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Information systems software