Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Spring 16 HB 337Hospitality Information SystemsInstructor: Lu Zhang (Ph.D.) Wed, 0120, 2016For today•Hardware and softwareNext •Monday – Database•Wednesday – Social mediaHardwareInput/Output UnitsExternal Storage DeviceCentral processing UnitInformation FlowControl FlowHardware•Input/Output UnitsExamples?•Central Processing UnitThe box that sits on your desk or the floorMay be integrated into the monitorHardware•Computer memoryJust like yours…•Read-Only Memory (ROM)•Random-Access Memory (RAM)Computer operation•1. Register•2. Arithmetic Logic Unit (ALU)•3. Control Unit•4. Data StoragePorts •Physical device connectionParallel – 8-bit transmissionSerial – single bit transmissionUSB – universal serial busECP – extended capabilities portIrDA – infrared device accessibilityWireless – no physical connectivityPnPPnPTower ports and connectorsNotebook ports and connectorsSoftwareDEFSoftwareSystemSoftwareSystem BootDiagnosticsMaintenanceOperating SystemsSystem BootDiagnosticsMaintenanceOperating SystemsDEFDEFApplication software“Add taxes to base pay1100011001100001100011….Compiler or interpreterHuman Readable Machine ReadableApplication SoftwareGeneric softwareIndustry software•Non-integrated•IntegratedGeneric softwareIndustry software•Non-integrated•IntegratedGeneric vs. integratedMultiprocessor InterfacingMultiprocessor InterfacingThe Five Cs•Confidence•Contracts•Communications•Comparisons•ContingenciesSoftware QuestionsSoftware Questions1. Should business procure hardware or software first?2. What ongoing IT expenditures are reasonable?3. Should enhancements be included in pricing/planning?Program development conceptsSystemSystem•What is a system?•What is information system?•How does this apply to someone in hospitality management?DataSystemInformationQ &