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Personal computer hardware                                                                                                           1



    Personal computer hardware
    A personal computer is made up of
    multiple physical components of
    computer hardware, upon which can
    be installed a system software called
    operating system and a multitude of
    software applications to perform the
    operator's desired functions.

    Though a PC comes in many different
    forms, a typical personal computer
    consists of a case or chassis in a tower
    shape        (desktop),       containing
    components such as a motherboard.


    Motherboard
    The motherboard is the main
    component inside the case. It is a large
    rectangular board with integrated
    circuitry that connects the rest of the
    parts of the computer including the
    CPU, the RAM, the disk drives (CD,
    DVD, hard disk, or any others) as well           Hardware of a modern Personal Computer. 1. Computer monitorMonitor 2.
    as any peripherals connected via the       Motherboard3. Central Processing UnitCPU4. Random-access memoryRAM5. Expansion
                                                 cards6. Power supply unit (computer)Power supply7. Optical disc drive8. Hard disk
    ports or the expansion slots.
                                                          drive9. Computer keyboardKeyboard10. Computer MouseMouse
    Components directly attached to the
    motherboard include:
    • The central processing unit (CPU) performs most of the calculations which enable a computer to function, and is
      sometimes referred to as the "brain" of the computer. It is usually cooled by a heat sink and fan.
    • The chip set mediates communication between the CPU and the other components of the system, including main
      memory.
    • RAM (Random Access Memory) stores resident part of the current running OS (OS core and so on) and all
      running processes (application parts, using CPU or input/output (I/O) channels or waiting for CPU or I/O
      channels).
    • The BIOS includes boot firmware and power management. The Basic Input Output System tasks are handled by
      operating system drivers.
    • Internal Buses connect the CPU to various internal components and to expansion cards for graphics and sound.
       • Current
          • The north bridge memory controller, for RAM and PCI Express
             • PCI Express, for expansion cards such as graphics and physics processors, and high-end network
               interfaces
          • PCI, for other expansion cards
          • SATA, for disk drives
          • ATA
Personal computer hardware                                                                                                        2


       • Obsolete
         • AGP (superseded by PCI Express)
         • VLB VESA Local Bus (superseded by AGP)
         • ISA (expansion card slot format obsolete in PCs, but still used in industrial computers)
    • External Bus Controllers support ports for external peripherals. These ports may be controlled directly by the
      south bridge I/O controller or based on expansion cards attached to the motherboard through the PCI bus.
       •   USB
       •   FireWire
       •   eSATA
       •   SCSI


    Power supply
    A power supply unit (PSU) converts alternating current (AC)
    electric power to low-voltage DC power for the internal
    components of the computer. Some power supplies have a
    switch to change between 230 V and 115 V. Other models
    have automatic sensors that switch input voltage
    automatically, or are able to accept any voltage between those
    limits. Power supply units used in computers are nearly
    always switch mode power supplies (SMPS). The SMPS
    provides regulated direct current power at the several voltages
    required by the motherboard and accessories such as disk
    drives and cooling fans.


    Removable media devices                                             Inside a custom-built computer: the power supply at the
    • CD (compact disc) - the most common type of removable                         bottom has its own cooling fan.

      media, suitable for music and data.
       • CD-ROM Drive - a device used for reading data from a CD.
      • CD Writer - a device used for both reading and writing data to and from a CD.
    • DVD (digital versatile disc) - a popular type of removable media that is the same dimensions as a CD but stores
      up to 12 times as much information. It is the most common way of transferring digital video, and is popular for
      data storage.
      • DVD-ROM Drive - a device used for reading data from a DVD.
      • DVD Writer - a device used for both reading and writing data to and from a DVD.
      • DVD-RAM Drive - a device used for rapid writing and reading of data from a special type of DVD.
    • Blu-ray Disc - a high-density optical disc format for data and high-definition video. Can store 70 times as much
      information as a CD.
      • BD-ROM Drive - a device used for reading data from a Blu-ray disc.
      • BD Writer - a device used for both reading and writing data to and from a Blu-ray disc.
    • HD DVD - a discontinued competitor to the Blu-ray format.
    • Floppy disk - an outdated storage device consisting of a thin disk of a flexible magnetic storage medium. Used
      today mainly for loading RAID drivers.
    • Iomega Zip drive - an outdated medium-capacity removable disk storage system, first introduced by Iomega in
      1994.
Personal computer hardware                                                                                                     3


    • USB flash drive - a flash memory data storage device integrated with a USB interface, typically small,
      lightweight, removable, and rewritable. Capacities vary, from hundreds of megabytes (in the same ballpark as
      CDs) to tens of gigabytes (surpassing, at great expense, Blu-ray discs).
    • Tape drive - a device that reads and writes data on a magnetic tape, used for long term storage and backups.


    Secondary storage
    Hardware that keeps data inside the computer for later use and remains persistent even when the computer has no
    power.
    • Hard disk - for medium-term storage of data.
    • Solid-state drive - a device similar to hard disk, but containing no moving parts and stores data in a digital format.
    • RAID array controller - a device to manage several internal or external hard disks and optionally some peripherals
      in order to achieve performance or reliability improvement in what is called a RAID array.


    Sound card
    Enables the computer to output sound to audio devices, as well as accept input from a microphone. Most modern
    computers have sound cards built-in to the motherboard, though it is common for a user to install a separate sound
    card as an upgrade. Most sound cards, either built-in or added, have surround sound capabilities.


    Input and output peripherals
    Input and output devices are typically housed externally to the main computer chassis. The following are either
    standard or very common to many computer systems.


    Input
    • Text input devices
       • Keyboard - a device to input text and characters by depressing
         buttons (referred to as keys or buttons).
    • Pointing devices
       • Mouse - a pointing device that detects two dimensional motion
         relative to its supporting surface.
          • Optical Mouse - uses light to determine mouse motion.
       • Trackball - a pointing device consisting of an exposed protruding
                                                                                                Wheel Mouse
         ball housed in a socket that detects rotation about two axes.


       • Touchscreen - senses the user pressing directly on the display
    • Gaming devices
      • Joystick - a control device that consists of a handheld stick that pivots around one end, to detect angles in two
        or three dimensions and reports its angle or direction to the device it is controlling.
      • Game pad - a hand held game controller that relies on the digits (especially thumbs) to provide input.
      • Game controller - a specific type of controller specialized for certain gaming purposes.
    • Image, Video input devices
       • Image scanner - a device that provides input by analyzing images, printed text, handwriting, or an object.
      • Web cam - a video camera used to provide visual input that can be easily transferred over the internet.
    • Audio input devices
Personal computer hardware                                                                                       4


       • Microphone - an acoustic sensor that provides input by converting sound into electrical signals.


    Output
    • Printer - a device that produces a permanent human-readable text of graphic document.
    • Speakers - typically a pair of devices (2 channels) which convert electrical signals into audio.
      • Headphones - for a single user hearing the audio.
    • Monitor - an electronic visual display with textual and graphical information from the computer.
       •   CRT - (Cathode Ray Tube) display
       •   LCD - (Liquid Crystal Display) as of 2010, it is the primary visual display for personal computers.
       •   LED - (light-emitting diode) display
       •   OLED - Organic Light-Emitting Diode
Article Sources and Contributors                                                                                                                                                                         5



    Article Sources and Contributors
    Personal computer hardware  Source: http://en.wikipedia.org/w/index.php?oldid=426559522  Contributors: 1297, 16@r, 1ForTheMoney, 2D, 7, ABF, ASmartKid, Aflin, Ahoerstemeier,
    Aitias, Alan Liefting, Alansohn, Aldie, Aleenf1, Alfio, Ali, AlistairMcMillan, Almafeta, Alphachimp, AnakngAraw, Anaxial, Andrejj, Andres, Aniket ray, Ansell, Anth.elias, Aremith, Arienh4,
    ArnoldReinhold, Aronzak, Arthena, Asephei, Ash211, Astragth, Atlant, Atomskninja, Augustojv, Avono, B4hand, Baa, Babajazz!, Barras, Beastfromouteast, Ben-Zin, Benny476, Bennybp,
    Betacommand, Betodd, Bgutah, Big Brother 1984, Blaxthos, Bluerasberry, Bobbybobington, Bobo192, Bongomatic, Brat32, Bsadowski1, Burzmali, Bushcarrot, Buttered Bread, CIreland,
    Cabbatime, Can't sleep, clown will eat me, Canderson7, CanisRufus, Capricorn42, CaptainVindaloo, CardinalDan, Carinemily, Chiragvyas, Chocolateboy, Chrihern, Chris G, Chzz, Clarince63,
    ClosedEyesSeeing, Cometstyles, Computerdan000, Computerman45, Conny, Conversion script, Coreycubed, Courcelles, Crazytales, CredoFromStart, Cyanoa Crylate, CyberEdZ, D dasun,
    DARTH SIDIOUS 2, DFRussia, DMacks, Da monster under your bed, Dadude3320, Dalliance, Dantebertana, DarkAudit, Darth Panda, Dasmich82, Daveb, Daveydweeb, David Biddulph, David
    Gerard, DavidCary, Debug-GED, Deeptrivia, DerHexer, Dicklyon, Dirkbb, Discospinster, DivineAlpha, Dkasak, DocWatson42, Dreadstar, Dskluz, Dysepsion, EJF, ESkog, Edcolins, Edivorce,
    Ehheh, Ekashp, El C, Elmindreda, Emhoo, Epbr123, Erik9, EryZ, Escape Orbit, Everbloom, Evlekis, Excirial, Falcon8765, Farosdaughter, Fazdabest, Fedaia, Feydey, Fieldday-sunday,
    Finalnight, Fluri, Foxjwill, Frap, Fsdfs, Funandtrvl, Fyyer, GB fan, Giftlite, GilbertoSilvaFan, Gilliam, Gimboid13, Glane23, Glass Sword, Glow-in-the-Dark Guy, Golbez, Goldom, Gorgan
    almighty, Graham87, Groby, Gurch, Gwen Gale, Gwernol, Gökhan, HalfShadow, Happah, Hardware.com, Haritacomputes, Hede2000, HenkeB, Herazy, Heron, HexaChord, Hmains, Hotshot977,
    Hurting4000, Hydrogen Iodide, I already forgot, I am stuiped, IRP, Ianweller, Icairns, Ilyaroz, Imasleepviking, Immunize, Iridescent, IvanAndreevich, Ixfd64, Izcool, J.delanoy, JLaTondre, Ja 62,
    Jabencarsey, Jacob2569, Jamesooders, Japonca, Jay, Jeff G., Jennavecia, Jimmi Hugh, Johan1298, John, Johnbrownsbody, Johnman239, JonHarder, Joseph507357, Jpbowen, Jpgordon, Jshi110,
    Julz888, Jumpman23.1313, Jusdafax, Jwoodger, Jxw13, Kanags, KathrynLybarger, Kbdank71, KeKe, Kenny sh, Kevinb, Kingadam150, Kingpin13, Kirachinmoku, Kizor, Knownot, Knuckx,
    Knutux, Kozuch, Kromped, Kubanczyk, Kuyamarco123, Kwiki, L Kensington, LaggedOnUser, Landon1980, Lanner10, LeaveSleaves, Leedeth, LiDaobing, LiteralKa, Logicwiki, Luckas Blade,
    Luke poa, Luna Santin, Lurker, Luís Felipe Braga, M Nabil, M4gnum0n, MANGEJ KUMAR, MER-C, MJ94, MMuzammils, MUdayKiran, Ma8thew, Mac, Madhero88, Maelnuneb,
    Majorclanger, Makeemlighter, Manishearth, Manjudeviprasad, Mannafredo, MarSch, Marcelo-Silva, Marcschulz, Martin451, MassimoAr, Mato, Matt Britt, MaverickSolutions, Mekong
    Bluesman, Mentifisto, Mhare, Michael Hardy, MichaelMcGuffin, Midnightcomm, Mike Rosoft, Mikeh0303, Miko3k, Miquonranger03, Monkee13, Monkey Bounce, Monobi, Montgomery '39,
    Mpgenius, Mpradeep, Mr Stephen, MrOllie, Mrzaius, Msajouher, Mushroom, Music Sorter, Mustafaa, Mygerardromance, Myscrnnm, Mythealias, Nancycil, Nanshu, NatureA16, NawlinWiki,
    Nemilar, NerdyScienceDude, Neurolysis, Nicholsr, Nickdella2, Nixdorf, No1lakersfan, Nonforma, Nopetro, Notjake13, Novum, Numbo3, Nurg, Odie5533, Ohnoitsjamie, OisinisiO, Olie93,
    Oliver202, Oliverdl, Omicronpersei8, Onorem, OrgasGirl, Oxymoron83, PAK Man, PTSE, Paul A, Pcap, Perkelito, Phantomsteve, Phgao, PhilKnight, Philip Trueman, Piano non troppo, Pixel8,
    Pnm, Pookleblinky, Possum, Psantora, Pujar123, Pyrospirit, Qirex, Qxz, R, R04drunerr, Rabit gti, Radagast83, Rahul0162, RainbowOfLight, Rajshree Dhapke, RaseaC, Ray Van De Walker,
    Rebroad, Reconsider the static, Reddi, Rettetast, RexNL, Rhondah2011, Rick Sidwell, Ridge Runner, Rjwilmsi, Rkinder, Rmosler2100, Robert Merkel, Robinh, Robomaeyhem, Rodhullandemu,
    Rsm99833, Rwwww, SReznikoff, Saddy Dumpington, Sajith...follows, Saketmitra, Sap123, SchuminWeb, Scott McNay, Scott Wilson, Sct72, Seidenstud, Selkem, Shadygrove2007, Sietse Snel,
    Silverxxx, Sithod, Skeetch, Sleeping143, Slon02, Smalljim, Smiteri, Snagari, Snigbrook, Softtest123, Sooriyank, Sourside21, South Bay, SpaceFlight89, SpikeToronto, Srini.s1994, Staxringold,
    StephenBuxton, Stephenb, SuperHamster, Sword, Szajd, TEB728, Tandral, Tatrgel, Tcncv, Techman224, Teehee123, Tgw333, ThaddeusB, Tharcore, The Anome, The Firewall, The Random
    Editor, The Sanctuary Sparrow, The Thing That Should Not Be, The undertow, TheBurningFlames, TheGhostOfXmasPast, Thecheesykid, Therag18, Thingg, Thr4wn, Thunderboltz, Tiddly Tom,
    Tide rolls, TimTIm, Tins128, Tirlias, Tonyiswac, Traroth, Treisijs, Ukexpat, UnfriendlyFire, Useight, Utcursch, Vald, Vkurtz, Volker, WLU, WOSlinker, Wafulz, Washburnmav, Wavelength,
    Weregerbil, Wernher, Western Pines, Where, Whisky drinker, WikiJaZon, Wikipelli, Wikitanvir, Wikitumnus, Wimt, Wjejskenewr, Wknight94, WojPob, Woland37, Woohookitty,
    WookieInHeat, Wrathchild, Wtshymanski, Wyco, Xe7al, Xxray03, Xyzzyplugh, Yakudza, Yesukai, Yesval, Ylem, Zak1551, Zfr, Zhou Yu, Ziusudra, Zlajas, Zollerriia, Zyro70, Zzuuzz, ‫دمحأ‬
    ‫ 7121 ,ديسلا ىفطصم‬anonymous edits




    Image Sources, Licenses and Contributors
    Image:Personal computer, exploded 5.svg  Source: http://en.wikipedia.org/w/index.php?title=File:Personal_computer,_exploded_5.svg  License: GNU Free Documentation License
     Contributors: Amada44, BRUTE, Gengiskanhg, Gustavb, Herbythyme, Hidro, Homonihilis, Jikayo, Kozuch, Mdd, Mhby87, Pepy, Petr.wudi, PlusMinus, Shmecherul70, Túrelio, ‫,ىنسح دلاخ‬
    ゆいしあす, 32 anonymous edits
    File:Computer from inside 018.jpg  Source: http://en.wikipedia.org/w/index.php?title=File:Computer_from_inside_018.jpg  License: Public Domain  Contributors: User:Kallerna
    Image:3-Tastenmaus Microsoft.jpg  Source: http://en.wikipedia.org/w/index.php?title=File:3-Tastenmaus_Microsoft.jpg  License: Creative Commons Attribution-Sharealike 2.5  Contributors:
    Aka, Darkone, GreyCat, Warden




    License
    Creative Commons Attribution-Share Alike 3.0 Unported
    http:/ / creativecommons. org/ licenses/ by-sa/ 3. 0/

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Essential PC Hardware Components

  • 1. Personal computer hardware 1 Personal computer hardware A personal computer is made up of multiple physical components of computer hardware, upon which can be installed a system software called operating system and a multitude of software applications to perform the operator's desired functions. Though a PC comes in many different forms, a typical personal computer consists of a case or chassis in a tower shape (desktop), containing components such as a motherboard. Motherboard The motherboard is the main component inside the case. It is a large rectangular board with integrated circuitry that connects the rest of the parts of the computer including the CPU, the RAM, the disk drives (CD, DVD, hard disk, or any others) as well Hardware of a modern Personal Computer. 1. Computer monitorMonitor 2. as any peripherals connected via the Motherboard3. Central Processing UnitCPU4. Random-access memoryRAM5. Expansion cards6. Power supply unit (computer)Power supply7. Optical disc drive8. Hard disk ports or the expansion slots. drive9. Computer keyboardKeyboard10. Computer MouseMouse Components directly attached to the motherboard include: • The central processing unit (CPU) performs most of the calculations which enable a computer to function, and is sometimes referred to as the "brain" of the computer. It is usually cooled by a heat sink and fan. • The chip set mediates communication between the CPU and the other components of the system, including main memory. • RAM (Random Access Memory) stores resident part of the current running OS (OS core and so on) and all running processes (application parts, using CPU or input/output (I/O) channels or waiting for CPU or I/O channels). • The BIOS includes boot firmware and power management. The Basic Input Output System tasks are handled by operating system drivers. • Internal Buses connect the CPU to various internal components and to expansion cards for graphics and sound. • Current • The north bridge memory controller, for RAM and PCI Express • PCI Express, for expansion cards such as graphics and physics processors, and high-end network interfaces • PCI, for other expansion cards • SATA, for disk drives • ATA
  • 2. Personal computer hardware 2 • Obsolete • AGP (superseded by PCI Express) • VLB VESA Local Bus (superseded by AGP) • ISA (expansion card slot format obsolete in PCs, but still used in industrial computers) • External Bus Controllers support ports for external peripherals. These ports may be controlled directly by the south bridge I/O controller or based on expansion cards attached to the motherboard through the PCI bus. • USB • FireWire • eSATA • SCSI Power supply A power supply unit (PSU) converts alternating current (AC) electric power to low-voltage DC power for the internal components of the computer. Some power supplies have a switch to change between 230 V and 115 V. Other models have automatic sensors that switch input voltage automatically, or are able to accept any voltage between those limits. Power supply units used in computers are nearly always switch mode power supplies (SMPS). The SMPS provides regulated direct current power at the several voltages required by the motherboard and accessories such as disk drives and cooling fans. Removable media devices Inside a custom-built computer: the power supply at the • CD (compact disc) - the most common type of removable bottom has its own cooling fan. media, suitable for music and data. • CD-ROM Drive - a device used for reading data from a CD. • CD Writer - a device used for both reading and writing data to and from a CD. • DVD (digital versatile disc) - a popular type of removable media that is the same dimensions as a CD but stores up to 12 times as much information. It is the most common way of transferring digital video, and is popular for data storage. • DVD-ROM Drive - a device used for reading data from a DVD. • DVD Writer - a device used for both reading and writing data to and from a DVD. • DVD-RAM Drive - a device used for rapid writing and reading of data from a special type of DVD. • Blu-ray Disc - a high-density optical disc format for data and high-definition video. Can store 70 times as much information as a CD. • BD-ROM Drive - a device used for reading data from a Blu-ray disc. • BD Writer - a device used for both reading and writing data to and from a Blu-ray disc. • HD DVD - a discontinued competitor to the Blu-ray format. • Floppy disk - an outdated storage device consisting of a thin disk of a flexible magnetic storage medium. Used today mainly for loading RAID drivers. • Iomega Zip drive - an outdated medium-capacity removable disk storage system, first introduced by Iomega in 1994.
  • 3. Personal computer hardware 3 • USB flash drive - a flash memory data storage device integrated with a USB interface, typically small, lightweight, removable, and rewritable. Capacities vary, from hundreds of megabytes (in the same ballpark as CDs) to tens of gigabytes (surpassing, at great expense, Blu-ray discs). • Tape drive - a device that reads and writes data on a magnetic tape, used for long term storage and backups. Secondary storage Hardware that keeps data inside the computer for later use and remains persistent even when the computer has no power. • Hard disk - for medium-term storage of data. • Solid-state drive - a device similar to hard disk, but containing no moving parts and stores data in a digital format. • RAID array controller - a device to manage several internal or external hard disks and optionally some peripherals in order to achieve performance or reliability improvement in what is called a RAID array. Sound card Enables the computer to output sound to audio devices, as well as accept input from a microphone. Most modern computers have sound cards built-in to the motherboard, though it is common for a user to install a separate sound card as an upgrade. Most sound cards, either built-in or added, have surround sound capabilities. Input and output peripherals Input and output devices are typically housed externally to the main computer chassis. The following are either standard or very common to many computer systems. Input • Text input devices • Keyboard - a device to input text and characters by depressing buttons (referred to as keys or buttons). • Pointing devices • Mouse - a pointing device that detects two dimensional motion relative to its supporting surface. • Optical Mouse - uses light to determine mouse motion. • Trackball - a pointing device consisting of an exposed protruding Wheel Mouse ball housed in a socket that detects rotation about two axes. • Touchscreen - senses the user pressing directly on the display • Gaming devices • Joystick - a control device that consists of a handheld stick that pivots around one end, to detect angles in two or three dimensions and reports its angle or direction to the device it is controlling. • Game pad - a hand held game controller that relies on the digits (especially thumbs) to provide input. • Game controller - a specific type of controller specialized for certain gaming purposes. • Image, Video input devices • Image scanner - a device that provides input by analyzing images, printed text, handwriting, or an object. • Web cam - a video camera used to provide visual input that can be easily transferred over the internet. • Audio input devices
  • 4. Personal computer hardware 4 • Microphone - an acoustic sensor that provides input by converting sound into electrical signals. Output • Printer - a device that produces a permanent human-readable text of graphic document. • Speakers - typically a pair of devices (2 channels) which convert electrical signals into audio. • Headphones - for a single user hearing the audio. • Monitor - an electronic visual display with textual and graphical information from the computer. • CRT - (Cathode Ray Tube) display • LCD - (Liquid Crystal Display) as of 2010, it is the primary visual display for personal computers. • LED - (light-emitting diode) display • OLED - Organic Light-Emitting Diode
  • 5. Article Sources and Contributors 5 Article Sources and Contributors Personal computer hardware  Source: http://en.wikipedia.org/w/index.php?oldid=426559522  Contributors: 1297, 16@r, 1ForTheMoney, 2D, 7, ABF, ASmartKid, Aflin, Ahoerstemeier, Aitias, Alan Liefting, Alansohn, Aldie, Aleenf1, Alfio, Ali, AlistairMcMillan, Almafeta, Alphachimp, AnakngAraw, Anaxial, Andrejj, Andres, Aniket ray, Ansell, Anth.elias, Aremith, Arienh4, ArnoldReinhold, Aronzak, Arthena, Asephei, Ash211, Astragth, Atlant, Atomskninja, Augustojv, Avono, B4hand, Baa, Babajazz!, Barras, Beastfromouteast, Ben-Zin, Benny476, Bennybp, Betacommand, Betodd, Bgutah, Big Brother 1984, Blaxthos, Bluerasberry, Bobbybobington, Bobo192, Bongomatic, Brat32, Bsadowski1, Burzmali, Bushcarrot, Buttered Bread, CIreland, Cabbatime, Can't sleep, clown will eat me, Canderson7, CanisRufus, Capricorn42, CaptainVindaloo, CardinalDan, Carinemily, Chiragvyas, Chocolateboy, Chrihern, Chris G, Chzz, Clarince63, ClosedEyesSeeing, Cometstyles, Computerdan000, Computerman45, Conny, Conversion script, Coreycubed, Courcelles, Crazytales, CredoFromStart, Cyanoa Crylate, CyberEdZ, D dasun, DARTH SIDIOUS 2, DFRussia, DMacks, Da monster under your bed, Dadude3320, Dalliance, Dantebertana, DarkAudit, Darth Panda, Dasmich82, Daveb, Daveydweeb, David Biddulph, David Gerard, DavidCary, Debug-GED, Deeptrivia, DerHexer, Dicklyon, Dirkbb, Discospinster, DivineAlpha, Dkasak, DocWatson42, Dreadstar, Dskluz, Dysepsion, EJF, ESkog, Edcolins, Edivorce, Ehheh, Ekashp, El C, Elmindreda, Emhoo, Epbr123, Erik9, EryZ, Escape Orbit, Everbloom, Evlekis, Excirial, Falcon8765, Farosdaughter, Fazdabest, Fedaia, Feydey, Fieldday-sunday, Finalnight, Fluri, Foxjwill, Frap, Fsdfs, Funandtrvl, Fyyer, GB fan, Giftlite, GilbertoSilvaFan, Gilliam, Gimboid13, Glane23, Glass Sword, Glow-in-the-Dark Guy, Golbez, Goldom, Gorgan almighty, Graham87, Groby, Gurch, Gwen Gale, Gwernol, Gökhan, HalfShadow, Happah, Hardware.com, Haritacomputes, Hede2000, HenkeB, Herazy, Heron, HexaChord, Hmains, Hotshot977, Hurting4000, Hydrogen Iodide, I already forgot, I am stuiped, IRP, Ianweller, Icairns, Ilyaroz, Imasleepviking, Immunize, Iridescent, IvanAndreevich, Ixfd64, Izcool, J.delanoy, JLaTondre, Ja 62, Jabencarsey, Jacob2569, Jamesooders, Japonca, Jay, Jeff G., Jennavecia, Jimmi Hugh, Johan1298, John, Johnbrownsbody, Johnman239, JonHarder, Joseph507357, Jpbowen, Jpgordon, Jshi110, Julz888, Jumpman23.1313, Jusdafax, Jwoodger, Jxw13, Kanags, KathrynLybarger, Kbdank71, KeKe, Kenny sh, Kevinb, Kingadam150, Kingpin13, Kirachinmoku, Kizor, Knownot, Knuckx, Knutux, Kozuch, Kromped, Kubanczyk, Kuyamarco123, Kwiki, L Kensington, LaggedOnUser, Landon1980, Lanner10, LeaveSleaves, Leedeth, LiDaobing, LiteralKa, Logicwiki, Luckas Blade, Luke poa, Luna Santin, Lurker, Luís Felipe Braga, M Nabil, M4gnum0n, MANGEJ KUMAR, MER-C, MJ94, MMuzammils, MUdayKiran, Ma8thew, Mac, Madhero88, Maelnuneb, Majorclanger, Makeemlighter, Manishearth, Manjudeviprasad, Mannafredo, MarSch, Marcelo-Silva, Marcschulz, Martin451, MassimoAr, Mato, Matt Britt, MaverickSolutions, Mekong Bluesman, Mentifisto, Mhare, Michael Hardy, MichaelMcGuffin, Midnightcomm, Mike Rosoft, Mikeh0303, Miko3k, Miquonranger03, Monkee13, Monkey Bounce, Monobi, Montgomery '39, Mpgenius, Mpradeep, Mr Stephen, MrOllie, Mrzaius, Msajouher, Mushroom, Music Sorter, Mustafaa, Mygerardromance, Myscrnnm, Mythealias, Nancycil, Nanshu, NatureA16, NawlinWiki, Nemilar, NerdyScienceDude, Neurolysis, Nicholsr, Nickdella2, Nixdorf, No1lakersfan, Nonforma, Nopetro, Notjake13, Novum, Numbo3, Nurg, Odie5533, Ohnoitsjamie, OisinisiO, Olie93, Oliver202, Oliverdl, Omicronpersei8, Onorem, OrgasGirl, Oxymoron83, PAK Man, PTSE, Paul A, Pcap, Perkelito, Phantomsteve, Phgao, PhilKnight, Philip Trueman, Piano non troppo, Pixel8, Pnm, Pookleblinky, Possum, Psantora, Pujar123, Pyrospirit, Qirex, Qxz, R, R04drunerr, Rabit gti, Radagast83, Rahul0162, RainbowOfLight, Rajshree Dhapke, RaseaC, Ray Van De Walker, Rebroad, Reconsider the static, Reddi, Rettetast, RexNL, Rhondah2011, Rick Sidwell, Ridge Runner, Rjwilmsi, Rkinder, Rmosler2100, Robert Merkel, Robinh, Robomaeyhem, Rodhullandemu, Rsm99833, Rwwww, SReznikoff, Saddy Dumpington, Sajith...follows, Saketmitra, Sap123, SchuminWeb, Scott McNay, Scott Wilson, Sct72, Seidenstud, Selkem, Shadygrove2007, Sietse Snel, Silverxxx, Sithod, Skeetch, Sleeping143, Slon02, Smalljim, Smiteri, Snagari, Snigbrook, Softtest123, Sooriyank, Sourside21, South Bay, SpaceFlight89, SpikeToronto, Srini.s1994, Staxringold, StephenBuxton, Stephenb, SuperHamster, Sword, Szajd, TEB728, Tandral, Tatrgel, Tcncv, Techman224, Teehee123, Tgw333, ThaddeusB, Tharcore, The Anome, The Firewall, The Random Editor, The Sanctuary Sparrow, The Thing That Should Not Be, The undertow, TheBurningFlames, TheGhostOfXmasPast, Thecheesykid, Therag18, Thingg, Thr4wn, Thunderboltz, Tiddly Tom, Tide rolls, TimTIm, Tins128, Tirlias, Tonyiswac, Traroth, Treisijs, Ukexpat, UnfriendlyFire, Useight, Utcursch, Vald, Vkurtz, Volker, WLU, WOSlinker, Wafulz, Washburnmav, Wavelength, Weregerbil, Wernher, Western Pines, Where, Whisky drinker, WikiJaZon, Wikipelli, Wikitanvir, Wikitumnus, Wimt, Wjejskenewr, Wknight94, WojPob, Woland37, Woohookitty, WookieInHeat, Wrathchild, Wtshymanski, Wyco, Xe7al, Xxray03, Xyzzyplugh, Yakudza, Yesukai, Yesval, Ylem, Zak1551, Zfr, Zhou Yu, Ziusudra, Zlajas, Zollerriia, Zyro70, Zzuuzz, ‫دمحأ‬ ‫ 7121 ,ديسلا ىفطصم‬anonymous edits Image Sources, Licenses and Contributors Image:Personal computer, exploded 5.svg  Source: http://en.wikipedia.org/w/index.php?title=File:Personal_computer,_exploded_5.svg  License: GNU Free Documentation License  Contributors: Amada44, BRUTE, Gengiskanhg, Gustavb, Herbythyme, Hidro, Homonihilis, Jikayo, Kozuch, Mdd, Mhby87, Pepy, Petr.wudi, PlusMinus, Shmecherul70, Túrelio, ‫,ىنسح دلاخ‬ ゆいしあす, 32 anonymous edits File:Computer from inside 018.jpg  Source: http://en.wikipedia.org/w/index.php?title=File:Computer_from_inside_018.jpg  License: Public Domain  Contributors: User:Kallerna Image:3-Tastenmaus Microsoft.jpg  Source: http://en.wikipedia.org/w/index.php?title=File:3-Tastenmaus_Microsoft.jpg  License: Creative Commons Attribution-Sharealike 2.5  Contributors: Aka, Darkone, GreyCat, Warden License Creative Commons Attribution-Share Alike 3.0 Unported http:/ / creativecommons. org/ licenses/ by-sa/ 3. 0/