Extended Learning Module C: Evaluating Computer Hardware & Software Management Information Systems...
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Transcript of Extended Learning Module C: Evaluating Computer Hardware & Software Management Information Systems...
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Extended Learning Module C:Evaluating ComputerHardware & Software
Management Information Systemsfor the Information Age
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XLM C: Computer Hardware and Software Slide 2-2
Key Concepts
Management Information SystemsInformation – processed data that has meaningPeople – knowledge workers; users of informationTechnology (IT) – any computer-based tool that helps knowledge workers work with information
Computer HardwareThe Toys: physical devices of a computer
Computer SoftwareThe Smarts: set of instructions (programs) executed by the computer to perform tasks
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XLM C: Computer Hardware and Software Slide 2-3
Categories of Computers 1/4
Personal Digital Assistant (PDAs)Calendar, contacts, notepad, e-mail, and WebTouch-screen; long battery-life; integ. phone
Notebook, Laptop, and Tablet ComputersBattery-powered and wireless for mobilityMore expensive than equivalent desktop
Desktop and Media Center ComputersRelatively inexpensive and expandableConnect to other entertainment devicesSelf-maintenance possible
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XLM C: Computer Hardware and Software Slide 2-4
Categories of Computers 2/4
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XLM C: Computer Hardware and Software Slide 2-5
Categories of Computers 3/4
MinicomputersMulti-processor computer for multi-tasking
MainframeServes processing power to hundreds of people
SupercomputerNumber-crunching computers found in some educational research institutions and government agencies
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XLM C: Computer Hardware and Software Slide 2-6
Categories of Computers 4/4
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XLM C: Computer Hardware and Software Slide 2-7
Six Categories of Computer Hardware
1. InputDevices that capture information and commands
2. OutputDevices that let you see, hear, and receive results of information processing requests
3. StoragePermanent: devices that let you store information for later use and retrievalTemporary: Random Access Memory (RAM)
4. ProcessingCentral Processing Unit (CPU)
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XLM C: Computer Hardware and Software Slide 2-8
Computer Hardware (cont’d)
5. Network CommunicationsDevices used to send information between two or more computers or locations
6. Connection Ports and CardsDevices and technologies that allow you to connect various hardware components together (i.e., USB, Firewire, serial, and parallel ports)
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XLM C: Computer Hardware and Software Slide 2-9
Your Computer System
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XLM C: Computer Hardware and Software Slide 2-10
Vocal Quiz
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XLM C: Computer Hardware and Software Slide 2-11
Input
KeyboardMouse or TrackballPointing Stick or TouchpadPen and TabletMicrophoneBarcode readerPoint-of-Sale systemMonitor TouchscreenDigital Camera and Scanner
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XLM C: Computer Hardware and Software Slide 2-12
Input (cont’d)
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XLM C: Computer Hardware and Software Slide 2-13
Output
MonitorCRT versus LCD Flat PanelSize, Resolution, and Dot Pitch
PrintersLaserInkjetDot MatrixMulti-functionPlotter
Speakers
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XLM C: Computer Hardware and Software Slide 2-14
Output (cont’d)
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XLM C: Computer Hardware and Software Slide 2-15
Processing
Central Processing Unit (CPU)AMD, Intel, Motorola, and Texas InstrumentsSpeeds (GHz) and Technologies (Celeron, Xeon)
Random Access Memory (RAM)Speeds (Mhz) and Technologies (DDR)Size measured in megabytes (MBs and GBs)
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XLM C: Computer Hardware and Software Slide 2-16
Processing (cont’d)
CPU InternalsControl UnitArithmetic Logic Unit (ALU)System Buses
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XLM C: Computer Hardware and Software Slide 2-17
Storage
Hard DiskSpeed (RPM), Buffer (MBs) and Size (GBs)RAID capabilities (striping and mirroring)
Optical DriveCDROM, CDR/RW, DVD, DVD-R, DVD+/-RW
Tape DriveFlash Memory
USB Flash Memory (MBs)CompactFlash (CF) MemorySecure Digital (SD) Memory
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XLM C: Computer Hardware and Software Slide 2-18
Storage (cont’d)
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XLM C: Computer Hardware and Software Slide 2-19
Communications
Dial-Up ModemCable ModemADSL ModemSatellite ModemNetworks (LANs and WANs)
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XLM C: Computer Hardware and Software Slide 2-20
Communications (cont’d)
Modem is so named because:Modulates (digital to analog conversion)Demodulates (analog to digital conversion)
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XLM C: Computer Hardware and Software Slide 2-21
Connection Ports and Cards
Expansion CardsISA, PCI, AGP, and PCI-Express
Standard PortsMouse, keyboard, serial, and parallel
High-Speed PortsIrDA (Infrared) & BlueTooth (64 Kbps to 1 Mbps)USB 1.1 = 12 MbpsUSB 2.0 = 480 MbpsFirewire 1394a = 400 MbpsFirewire 1394b = 800 Mbps
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XLM C: Computer Hardware and Software Slide 2-22
Connections (cont’d)
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XLM C: Computer Hardware and Software Slide 2-23
Putting It All Together 1
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XLM C: Computer Hardware and Software Slide 2-24
Putting It All Together 2
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XLM C: Computer Hardware and Software Slide 2-25
Two Categories of Computer Software
1. Application SoftwareSet of instructions, in the form of a program, that allows you to perform tasks
2. System SoftwareOperating System (OS)
Manages the communication between, and functionality of, hardware devices Provides the graphical user interface (GUI) for today’s computer systems
Utility SoftwareProvides additional functionality to the OS
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XLM C: Computer Hardware and Software Slide 2-26
Computer Software
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XLM C: Computer Hardware and Software Slide 2-27
Application Software 1/3
Personal Productivity SolutionsWord ProcessingSpreadsheetPresentationDatabaseFinanceGraphicsWeb AuthoringCommunicationsDesktop PublishingPersonal Information Management (PIM)
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XLM C: Computer Hardware and Software Slide 2-28
Application Software 2/3
Corporate SolutionsMake versus Buy Decisions
SAP
Vertical Market: industry-specificDental Management Software
Horizontal Market: cross-industryEasyPay Canadian Payroll Software
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XLM C: Computer Hardware and Software Slide 2-29
Application Software 3/3
Office SuitesMicrosoft OfficeSun StarOfficeOpenOffice602Software PC SuiteCorel WordPerfect Office
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XLM C: Computer Hardware and Software Slide 2-30
System Software 1/4
Operating SystemsWindowsMacintoshLinuxPalm OSPocket PC
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XLM C: Computer Hardware and Software Slide 2-31
System Software 2/4
Win98 & MEWin98 & ME
NT & 2000NT & 2000
Pre-Pre-19991999
Released Released October October
20012001
ReleasedReleased20002000
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XLM C: Computer Hardware and Software Slide 2-32
System Software 3/4
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XLM C: Computer Hardware and Software Slide 2-33
System Software 4/4
Utility SoftwareAnti-VirusData BackupFile ManagementSystem ConfigurationPerformance Optimization
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XLM C: Computer Hardware and Software Slide 2-34
Results from a Bad Mouse Virus!