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yright Prentice-Hall, Inc. 1998 1- 1 The World of The World of Computers Computers Chapter 1 Chapter 1
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The World of ComputersThe World of Computers
Chapter 1Chapter 1
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For CyberphobiaFor Cyberphobia
InputInputOutputOutputHardwareHardwareSoftwareSoftwareProgramsPrograms
Computer CompetencyComputer Competency
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Computer UsageComputer Usage Information SystemsInformation Systems Personal ComputingPersonal Computing
Word ProcessingWord Processing Desktop PublishingDesktop Publishing SpreadsheetSpreadsheet DatabaseDatabase GraphicsGraphics CommunicationsCommunications
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Computer’s StrengthsComputer’s Strengths SpeedSpeed AccuracyAccuracy ConsistencyConsistency ReliabilityReliability Memory CapabilityMemory Capability
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Supermarket computingPoint of sale (POS) terminals
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Computer UsageComputer Usage CommunicationCommunication Science, Research, & EngineeringScience, Research, & Engineering Education & ReferenceEducation & Reference Computer-Aided DesignComputer-Aided Design Entertainment & EdutainmentEntertainment & Edutainment
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Powerful graphics software
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Computer graphics to model lighting effects
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Research tools
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NASA computer use for simulations
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Computers as diagnostic and monitoring tools
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Multimedia presentations for recordingtext, video and audio (courtroom depositions)
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Computers as recreational devices
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The Computer RevolutionThe Computer RevolutionPersonal ComputersPersonal ComputersPCsPCse-maile-mailBBSsBBSsN I I N I I Information Information SuperhighwaySuperhighway
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The Computer RevolutionThe Computer Revolution
DataData
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The Computer RevolutionThe Computer Revolution
DataData InformationInformation
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The Computer RevolutionThe Computer Revolution
DataData InformationInformation
RecordRecord
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The Computer RevolutionThe Computer Revolution
DataData InformationInformation
RecordRecord MasterMasterFileFile
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Early mass production in the auto industry
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Modern mass production methods in theauto industry using computer-driven automation
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Computerized maps using GPS technology
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Networking: Networking: The Global VillageThe Global Village
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The Internet & Going On-lineThe Internet & Going On-line
The NetThe NetInformation ServicesInformation Services
Offline / Online OperationOffline / Online OperationDownload / Upload CapabilitiesDownload / Upload Capabilities
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Electronic Commerce
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AOL Channels
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Computer SystemsComputer SystemsPersonal ComputerPersonal Computer
WorkstationWorkstation
Midsize MainframeMidsize Mainframe
MainframeMainframe
SupercomputerSupercomputer
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MicrocomputersMicrocomputers Pocket PCsPocket PCs Laptop PCsLaptop PCs Desktop PCsDesktop PCs Peripherals Peripherals PDAsPDAs Multimedia Multimedia WorkstationsWorkstations
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Palmtop computers
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Personal Digital Assistant (PDA)handheld computer for note taking
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Executive daytimer with pen input device
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Laptop computing by a real estate agent
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Docking station for portability and flexibility
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Home computing
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Workstation (software retrieval only as needed)
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Mainframe ComputersMainframe Computers Enterprise-wide SystemsEnterprise-wide Systems
Host ComputerHost Computer VDT or TerminalVDT or Terminal Input/Output-Bound ApplicationsInput/Output-Bound Applications
MinicomputersMinicomputers SupercomputersSupercomputers
Processor-Bound ApplicationsProcessor-Bound Applications
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Networked environment for business computing
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Computer Aided Design (CAD)
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Mainframe computing
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Super computing (Cray T3E-900)(1 trillion operations per second)
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Supercomputer simulation of impact oftitanium golf club head and ball
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Basic ComputereseBasic ComputereseProcessorProcessor
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Basic ComputereseBasic ComputereseProcessorProcessorComputer SystemComputer System
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Basic ComputereseBasic ComputereseProcessorProcessorComputer SystemComputer SystemMonitor (Soft Copy)Monitor (Soft Copy)
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Basic ComputereseBasic ComputereseProcessorProcessorComputer SystemComputer SystemMonitor (Soft Copy)Monitor (Soft Copy)Printer (Hard Copy)Printer (Hard Copy)
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Basic ComputereseBasic ComputereseProcessorProcessorComputer SystemComputer SystemMonitor (Soft Copy)Monitor (Soft Copy)Printer (Hard Copy)Printer (Hard Copy)KeyboardKeyboard
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Basic ComputereseBasic ComputereseProcessorProcessorComputer SystemComputer SystemMonitor (Soft Copy)Monitor (Soft Copy)Printer (Hard Copy)Printer (Hard Copy)KeyboardKeyboardMouseMouse
UNFAIR!
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Basic ComputereseBasic ComputereseProcessorProcessorComputer SystemComputer SystemMonitor (Soft Copy)Monitor (Soft Copy)Printer (Hard Copy)Printer (Hard Copy)KeyboardKeyboardMouseMouseChipsChips
RAMRAMIntegrated CircuitsIntegrated Circuits
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Specialized multimedia and communication devices
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Computers can....Computers can.... Input/Output OperationsInput/Output Operations Processing OperationsProcessing Operations
Computational OperationsComputational Operations PAY = HOURS_WORKED * PAY_RATEPAY = HOURS_WORKED * PAY_RATE
Logic OperationsLogic OperationsIF HOURS_WORKED > 40 THEN PAY_OVERTIMEIF HOURS_WORKED > 40 THEN PAY_OVERTIME
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Summary Summary DiscussionDiscussion
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Coming Coming Next:Next:
Inside the
ComputerChapter Chapter 22
