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Copyright Prentice-Hall, Inc. 1998 3-1
Telling Computers What to DoTelling Computers What to Do
Larry Long
&
Nancy Long
5th. Editio
n
Student Disk
CHAPTER
3
Copyright Prentice-Hall, Inc. 1998 3-2
Atlanta Olympics
Copyright Prentice-Hall, Inc. 1998 3-3
Data Access
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Software TypesSoftware Types
Copyright Prentice-Hall, Inc. 1998 3-5
Software TypesSoftware Types
SystemSystemSystemSystem
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Software TypesSoftware TypesBusiness Business
SystemSystemSystemSystem
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Software TypesSoftware TypesBusiness Business
ProductivityProductivity
SystemSystemSystemSystem
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Software TypesSoftware TypesBusiness Business
ProductivityProductivity
SystemSystemSystemSystem
WorkgroupWorkgroupComputingComputing
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Software TypesSoftware TypesBusiness Business
ProductivityProductivity
SystemSystemSystemSystem
WorkgroupWorkgroupComputingComputing
EducationEducation &&ReferenceReference
Copyright Prentice-Hall, Inc. 1998 3-10
Software TypesSoftware TypesBusiness Business
Home &Home & PersonalPersonal
ProductivityProductivity
SystemSystemSystemSystem
WorkgroupWorkgroupComputingComputing
EducationEducation &&ReferenceReference
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Software TypesSoftware TypesBusiness Business
Home &Home & PersonalPersonal
ProductivityProductivity
MultimediaMultimedia
SystemSystemSystemSystem
WorkgroupWorkgroupComputingComputing
EducationEducation &&ReferenceReference
Copyright Prentice-Hall, Inc. 1998 3-12
Software TypesSoftware TypesBusiness Business
Home &Home & PersonalPersonal
ProductivityProductivity
MultimediaMultimedia
SystemSystemSystemSystem
MiscellaneousMiscellaneous
WorkgroupWorkgroupComputingComputing
EducationEducation &&ReferenceReference
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Operating Operating SystemSystem
KernelKernelMultitaskingMultitaskingText-Based SoftwareText-Based SoftwareGraphics Based Graphics Based SoftwareSoftware
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Icons
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Windows 98 Operating System
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Mac OS
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Handheld PC with ROM-based OS
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Operating System Operating System ObjectivesObjectives
To Facilitate To Facilitate CommunicationCommunication Between Computer & UserBetween Computer & User Among System ComponentsAmong System Components
To Maximize ThroughputTo Maximize Throughput To Minimize Time Needed To Minimize Time Needed to Execute to Execute CommandsCommands
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Copyright Prentice-Hall, Inc. 1998 3-22
Operating System Operating System ObjectivesObjectives
To Optimize Use of System To Optimize Use of System Resources Resources
To Keep Track of Stored To Keep Track of Stored Files Files
To Provide Security for the To Provide Security for the Computer SystemComputer System
To Monitor All Systems & To Monitor All Systems & Alert to Failures & ProblemsAlert to Failures & Problems
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Computer Computer ProgramsPrograms
Input/Output InstructionsInput/Output InstructionsComputation InstructionsComputation InstructionsControl InstructionsControl InstructionsAssignment InstructionsAssignment InstructionsFormal InstructionsFormal Instructions
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Early Programming bysetting switches
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The modern programmingenvironment
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Java programming foronline multimedia
applications
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Programming Programming LanguagesLanguages
Machine LanguageMachine LanguageProcedure-Oriented Procedure-Oriented LanguagesLanguages
Object-Oriented LanguagesObject-Oriented LanguagesThe Fourth GenerationThe Fourth GenerationVisual LanguagesVisual LanguagesNatural Languages Natural Languages
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A COBOL Program
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Flowchart
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Visual Basic
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Word Macro Language
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PlatformsPlatformsThe ProcessorThe Processor
Intel Pentium ProIntel Pentium ProPower PCPower PC
The Operating SystemThe Operating SystemWindows 95/97/NT/CEWindows 95/97/NT/CEMacintoshMacintosh
Registered trademarks of Intel Corporation and Microsoft Corporation
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PC PlatformsPC PlatformsMS-DOS CompatibleMS-DOS CompatibleMS-DOS & Windows MS-DOS & Windows
CompatibleCompatibleWindows is User FriendlyWindows is User FriendlyIt Enables Multi-TaskingIt Enables Multi-TaskingIt Allows For Large FilesIt Allows For Large FilesIt Permits Information It Permits Information SharingSharing
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Multitasking
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PC/Windows Platforms: PC/Windows Platforms: 95/97/NT/CE95/97/NT/CEDoes Not Require the Does Not Require the
Antiquated MS-DOS Operating Antiquated MS-DOS Operating SystemSystem
Plug & Play CapacityPlug & Play CapacityMacintosh CompatibleMacintosh CompatibleMulti-user PlatformsMulti-user PlatformsUNIX & Windows NTUNIX & Windows NT
PC PlatformsPC Platforms
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Computer Computer OperationOperation
Installing Hardware & Installing Hardware & SoftwareSoftware
Power Up/Shut DownPower Up/Shut DownEntering Commands & DataEntering Commands & DataInput & ControlInput & ControlPoint & Draw DevicesPoint & Draw DevicesMenus & Button BarsMenus & Button Bars
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The Boot Procedure
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QWERTY Keyboard
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Drag and Drop
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Drop-down Menus
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Toolbar
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Scrolling
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PC-based system monitoring and control
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Computer Aided Designand Manufacturing
(CAD/CAM)
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Tank Simulator(joystick-driven)
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Tank simulation view
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Next....Next....
Chapter 4Chapter 4
Storing & Retrieving Information: Storing & Retrieving Information: Disk & Tape Back-up UnitsDisk & Tape Back-up Units