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Presentation007
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- 2. Introduction toms office2007Create By Tank Ajay
- 3. Learning ObjectivesLearn thecomputer needs both HW & SW to workLearn many different HW components inside and outside the computer
- 4. Hardware Needs Softwareto WorkHardware: physical portion of a computer
- 5. Software: instructions usedto manipulate hardwareHardware Needs Software to WorkAll hardware operations are based on binary values(base 2)Binary number system consists of two digits: 0 and 1Bits and Bytes
- 6. PC Hardware ComponentsInput/output(I/O)external to case
- 7. Processing and storagedevices are internalHardware for Input and OutputChief input devices:Keyboard
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- 10. PrinterHardware Inside theCaseStorage and processing occurs in the caseInternal devices:Motherboard, CPU, memory, etc.Hard drive and CD drivePower supplyExpansion card installed on motherboardCables: data and power communication
- 11. The MotherboardMain boardor system boardContains CPU, Memory, etc.Grouping categoriesProcessing, temporary storageCommunication, powerAll communicate with CPUPeripherals link via cable
- 12. CPU and ChipsetCPU:performs data processingChipset: microchips controlling data flowManufacturers of CPUs and chipsetsIntel Corporation AMD, VIA, SIS, and Cyrix
- 13. Storage DevicesPrimary storage(Temporary)RAMused by the processorSecondary storage(Permanent)Hard dive, CD, Floppy diskAnalogy to primary-secondary memory relationshipBook stacks in a library are like permanent storageBooks can be moved to a desk(temporary storage)
- 14. Primary StorageRAM(Random AccessMemory)Temporary storage on motherboardThree types of RAM(memory modules):DIMM(Dual Inline Memory Module)RIMM(RambusInline Memory Module)SIMM(Single Inline Memory Module)RAM is volatile(data dose not persist)ROM(Read-Only-Memory) is nonvolatile
- 15. Secondary StorageHard driveDiskthat rotate at high speedIntegrate Drive Electronics(IDE)ATA(AT Attachment) standardSpecifies motherboard hard drive interfaceTypes: Serial ATA or parallel ATA(Enhanced IDE)Parallel ATA accommodates up to four IDE devicesROM(Read-Only-Memory) is nonvolatile
- 16. Secondary Storage (continued)SerialATA standardAllows for more than four drive in systemIDE devices: Hard drive, Zip drive, CD driveFloppy drive3.5 inch disk holding 1.44MB of dataFloppy drive connector is distinct from IDE connectorCD-ROM(compact disc, read-only memory) driveStandard equipment for reading software distributions
- 17. Motherboard Components UsedFor Communication Among DevicesTraces: circuits or paths that move that move data and powerData bus is bus that carries dataData path sizes:8, 16, 32, 64 or 128 bits wideMain bus(system bus, memory bus)Communicates with CPU, Memory and ChipsetSystem clock pulse carried by line on motherboard
- 18. Motherboard Components UsedFor Communication Among Devices(continued)Clock speed is measured in hertz(cycles/second)One megahertz(MHz): one million cycles per secondOne gigahertz(GHz): one billion cycles per secondCommon ratings for motherboard buses1066 MHz, 800 MHz, 533MHz or 400MHzRange of CPU speed: 166 MHz to 4 GHzBuses for expansion slots: PCI, AGP, ISA
- 19. Interface (Expansion) CardsCircuitcards, Adapter boards, Expansion cardCard connect the CPU to an external device:Video: provides a port for the monitorSound : provides a port for speaker and microphonesNetwork : provides a port for a network cableModem : provides a port for phone linesDetermine a card’s function by identifying its port
- 20. The Electrical SystemPowersupplyMost important electrical componentConvert AC voltage extremal source to DC voltageReduces voltage from 110-120 volts to 12 volts or lessRuns a fan to cool the inside of the computer caseTemperatures>1850 F can cause component failureMotherboard has 1 or 2 connections to power supply
- 21. Instructions Stored onthe Motherboard and Other BoardsBIOS(Basic Input/output system)Data and instructions stored on ROM chipsROM BIOS chips are a type of firmwareThree purposes of ROM BIOS:System BIOS: used to manage simple devicesStartup BIOS: used to start the computerCMOS setup: used to change motherboard settingsCOMS RAM: includes data, time port configurationsFlash ROM: ROM chips the can overwritten
- 22. Advanced Configuration andPower InterfaceAlso known as ACPIStandards specifying a power saving featureEnables a system to power up by a keyboardSupported by most systems, such as Windows XPAdvanced Power Management(APM)Older BIOS power management standard
- 23. Plug and PlayAlsoknown as PnPStandard simplifying installation of hardware devicesPnP BIOS begins process of configuring devicesPnP-compliant operating system completes configurationESCD(Extended System Configuration Data) Plug and Play BIOSEnhanced version of PnP and Stores manual configuration steps
- 24. SummaryA computer compriseshardware and softwareMain functions: Input, Output, Processing, StorageData is stored in a binary format(1 or 0, on or off)Input/output device: keyboard, mouse, printer, monitorMotherboard(system board): contains the CPU, access to other circuit board and peripherals
- 25. Summary(continued)Primary storage(RAM) isvolatile(Temporary)Secondary storage is nonvolatile(permanent)Parallel and serial ATA standards: Enable SecondaryStorage devices to interface with the motherboardComputer bus: system of communication pathways and protocols ROM BIOS helps start PCs , manage simple devices, and change some motherboard settings
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Editor's Notes
- #8 Use a section header for each of the topics, so there is a clear transition to the audience.