Dell D520 specifications System tray See notification area, Video resolution See resolution

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Surge protectors do not protect against lightning strikes or against brownouts, which occur when the voltage drops more than 20 percent below the normal AC-line voltage level.

Network connections cannot be protected by surge protectors. Always disconnect the network cable from the network connector during electrical storms.

SIM — Subscriber Identity Module. A SIM card contains a microchip that encrypts voice and data transmissions. SIM cards can be used in phones or portable computers.

SVGA super-video graphics array — A video standard for video cards and controllers. Typical SVGA resolutions are 800 x 600 and 1024 x 768.

The number of colors and resolution that a program displays depends on the capabilities of the monitor, the video controller and its drivers, and the amount of video memory installed in the computer.

S-videoTV-out— A connector used to attach a TV or digital audio device to the computer.

SXGA super-extended graphics array — A video standard for video cards and controllers that supports resolutions up to 1280 x 1024.

SXGA+ super-extended graphics array plus — A video standard for video cards and controllers that supports resolutions up to 1400 x 1050.

system board — The main circuit board in your computer. Also known as the motherboard.

system setup program— A utility that serves as an interface between the computer hardware and the operating system. The system setup program allows you to configure user-selectable options in the BIOS, such as date and time or system password. Unless you understand what effect the settings have on the computer, do not change the settings for this program.

system tray — See notification area.

T

TAPI — telephony application programming interface — Enables Windows programs to operate with a wide variety of telephony devices, including voice, data, fax, and video.

text editor — A program used to create and edit files that contain only text; for example, Windows Notepad uses a text editor. Text editors do not usually provide word wrap or formatting functionality (the option to underline, change fonts, and so on).

travel module — A plastic device designed to fit inside the media bay of a portable computer to reduce the weight of the computer.

U

UMA — unified memory allocation — System memory dynamically allocated to video.

UPS — uninterruptible power supply — A backup power source used when the electrical power fails or drops to an unacceptable voltage level. A UPS keeps a computer running for a limited amount of time when there is no electrical power. UPS systems typically provide surge suppression and may also provide voltage regulation. Small UPS systems provide battery power for a few minutes to enable you to shut down your computer.

USB — universal serial bus — A hardware interface for a low-speed device such as a USB-compatible keyboard, mouse, joystick, scanner, set of speakers, printer, broadband devices (DSL and cable modems), imaging devices, or storage devices. Devices are plugged directly in to a 4-pin socket on your computer or in to a multi-port hub that plugs in to your computer. USB devices can be connected and disconnected while the computer is turned on, and they can also be daisy-chained together.

UTP — unshielded twisted pair — Describes a type of cable used in most telephone networks and some computer networks. Pairs of unshielded wires are twisted to protect against electromagnetic interference, rather than relying on a metal sheath around each pair of wires to protect against interference.

UXGA — ultra extended graphics array — A video standard for video cards and controllers that supports resolutions up to 1600 x 1200.

V

video controller — The circuitry on a video card or on the system board (in computers with an integrated video controller) that provides the video capabilities—in combination with the monitor—for your computer.

video memory — Memory that consists of memory chips dedicated to video functions. Video memory is usually faster than system memory. The amount of video memory installed primarily influences the number of colors that a program can display.

video mode — A mode that describes how text and graphics are displayed on a monitor. Graphics-based software, such as Windows operating systems, displays in video modes that can be defined as x horizontal pixels by y vertical pixels by z colors. Character-based software, such as text editors, displays in video modes that can be defined as x columns by y rows of characters.

video resolution — See resolution.

virus — A program that is designed to inconvenience you or to destroy data stored on your computer. A virus program moves from one computer to another through an infected disk, software downloaded from the Internet, or e-mail attachments. When an infected program starts, its embedded virus also starts.

A common type of virus is a boot virus, which is stored in the boot sectors of a floppy disk. If the floppy disk is left in the drive when the computer is shut down and then turned on, the computer is infected when it reads the boot sectors of the floppy disk expecting to find the operating system. If the computer is infected, the boot virus may replicate itself onto all the floppy disks that are read or written in that computer until the virus is eradicated.

V — volt — The measurement of electric potential or electromotive force. One V appears across a resistance of 1 ohm when a current of 1 ampere flows through that resistance.

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Contents Dell Latitude D520 Users Guide Abbreviations and AcronymsFront View About Your ComputerDevice status lights Keyboard status lights Audio connectors Left ViewRight View USB connectorsBack View Modem connector RJ-11 Network connector RJ-45Video TV-out connector Serial connectorBottom View Back to Contents Cleaning Your Computer AppendixFCC Notice U.S. Only Macrovision Product NoticeFCC Class B Using a Battery Battery PerformanceChecking the Battery Charge Dell QuickSet Battery MeterConserving Battery Power Power Management ModesConfiguring Power Management Settings Charging the BatteryHibernate Mode Click Start→ Shut Down→ Stand byReplacing the Battery Storing a BatteryUsing Cards Installing a PC Card or ExpressCardCard Types Card BlanksRemoving a Card or Blank ExpressCardUsing the Display Adjusting BrightnessSwitching the Video Image Setting Display Resolution and Refresh RateClick Settings in the Display Properties window Swapping Primary and Secondary DisplaysFinding Information Find It HereDell Support Website support.dell.com GuidesSelect Drivers & Downloads and click Go Windows Help and Support Center Glossary Device driver See driver Docking device See APRPage Page NIC See network adapter Page Video resolution See resolution System tray See notification areaBack to Contents Online Services Getting HelpObtaining Assistance Ftp.dell.comProblems With Your Order AutoTech ServiceAutomated Order-Status Service Support ServiceDiagnostics Checklist Before You CallContacting Dell Antigua and BarbudaArgentina Buenos Aires ArubaAustralia Sydney 0011Canada North York Ontario011 Cayman IslandsDenmark Copenhagen DominicaDominican Republic EcuadorGrenada GuatemalaGuyana Hong KongJamaica Website support.jp.dell.comJapan Kawasaki Korea SeoulMexico MontserratNetherlands Antilles Netherlands AmsterdamSt. Kitts and Nevis St. LuciaSt. Vincent GrenadinesSwitzerland Geneva Taiwan002 Website support.ap.dell.com ThailandVirgin Islands A. Austin, Texas BusinessVenezuela Numeric Keypad Using the Keyboard and Touch PadKey Combinations Power Management Touch PadSpeaker Functions Microsoft Windows Logo Key FunctionsCustomizing the Touch Pad Mouse Properties windowAdjusting the Volume Using MultimediaPlaying a CD or DVD Adjusting the Picture How to Copy a CD or DVDUsing Blank CDs and DVDs Copying CDs and DVDsHelpful Tips Connecting Your Computer to a TV or Audio DeviceMedia Type Read Write Rewritable Video and Standard Audio Composite Video and Standard AudioSetting Up the Cyberlink CL Headphones Click the DVD Audio Setting icon Click Device SettingsSetting Up a Network Physically Connecting to a Network or Broadband ModemNetwork Setup Wizard Wireless Local Area Network WlanChecking Your Wireless Network Card Setting Up a New WlanConnecting a Wireless Router and a Broadband Modem Start Button and Connect To OptionDetermining the Wireless Network Device Manager Connecting to a Wireless Local Area NetworkUnder Pick a Help topic, click Dell User and System Guides Enabling/Disabling the Wireless Network Card Mobile Broadband or Wireless Wide Area Network WwanConnecting to a Mobile Broadband Network Internet Connection Firewall Adding and Replacing Parts Before You BeginRecommended Tools Turning Off Your ComputerHard Drive Returning a Hard Drive to Dell Media BayRemoving the Device Security Screw Removing and Installing Media Bay Devices Hinge CoverKeyboard Memory Page Wireless Cards Wireless Local Area Network Wlan CardsInternal Card With Bluetooth Wireless Technology Coin-Cell BatteryBack to Contents Dell QuickSet Passwords Using a Primary/System PasswordSecuring Your Computer Security Cable LockUsing an Administrator Password Using a Hard Drive PasswordComputer Tracking Software If Your Computer Is Lost or StolenBack to Contents System Setup Program Viewing the System Setup ScreensSystem Setup Screens Commonly Used SettingsPerforming a One-Time Boot Changing COM PortsEnabling the Infrared Sensor Locate Fast IR under Onboard DevicesPage Reinstalling Software What Is a Driver?Reinstalling Drivers and Utilities DriversUsing the Drivers and Utilities CD Manually Reinstalling DriversSoftware and Hardware Incompatibilities Click Start→ Help and SupportUsing Microsoft Windows XP System Restore Creating a Restore PointUndoing the Last System Restore Restoring Your Operating SystemUsing the Operating System CD Enabling System RestoreReinstalling Windows XP Before You BeginSpecifications Communications VideoAudio DisplayBattery KeyboardTouch Pad AC AdapterPhysical EnvironmentalDell Latitude D520 Users Guide Traveling With Your Computer Identifying Your ComputerPacking the Computer Travel TipsBack to Contents Troubleshooting Dell Technical Update ServiceDell Diagnostics When to Use the Dell DiagnosticsDell Diagnostics Main Menu Option FunctionDrive Problems Accessing the Dell Support UtilityDell Support Utility Clicking the Dell Support IconCD and DVD drive problems Hard drive problemsProblems writing to a CD/DVD-RW drive If you hear an unfamiliar scraping or grinding soundError Messages Mail, Modem, and Internet ProblemsVerify that the modem is communicating with Windows CD drive controller failure Click Start→ Control Panel→ Add or Remove Programs Ieee 1394 Device Problems Keyboard ProblemsExternal Keyboard problems If you have problems with an Ieee 1394 deviceLockups and Software Problems Unexpected charactersComputer does not start up Computer stops respondingMemory Problems Network ProblemsOther software problems Solid blue screen appearsPC Card or ExpressCard Problems GeneralMobile Broadband Network Restart the computer and log on to the network againEnsuring Sufficient Power for Your Computer Power ProblemsDocking Power Considerations Printer Problems Scanner ProblemsAC Power Loss While the Computer Is Docked Docking While the Computer Is RunningSound and Speaker Problems Touch Pad or Mouse ProblemsNo sound from headphones No sound from integrated speakersVideo and Display Problems Check the touch pad settingsIf the display is blank If the display is difficult to readAdjust the Windows display settings If only part of the display is readableClick Start→ Control Panel→ Appearance and Themes Connect an external monitor
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D520 specifications

The Dell D520 is a robust and reliable laptop that was introduced as part of Dell's Latitude series, catering primarily to business professionals and enterprises. Known for its solid build and practical features, the D520 emphasizes productivity and durability in a mobile computing environment.

One of the standout features of the Dell D520 is its comfortable keyboard layout. The full-sized, spill-resistant keyboard offers a tactile feel, making it ideal for extended typing sessions. Additionally, the touchpad is responsive, enhancing ease of navigation while on the go. The laptop's design prioritizes ease of use, ensuring that users can work efficiently, whether in an office or while traveling.

In terms of hardware, the Dell D520 typically features Intel processors, which provide a balanced mix of performance and power efficiency. This enables users to run multiple applications without significant lag, making it suitable for multitasking. The laptop is also equipped with a decent amount of RAM, ensuring smooth performance for standard business applications and tasks.

The D520 includes various connectivity options, crucial for modern-day professionals. It typically comes with several USB ports, an Ethernet port, and a VGA port for connecting to external displays. There is also the option for Wi-Fi connectivity, allowing users to connect to networks effortlessly.

One of the key characteristics of the Dell D520 is its durability. The laptop is designed to withstand the rigors of daily use and features a sturdy chassis that can handle rough treatment. This durability makes it a favorite among users who need a reliable machine that can endure a busy workday.

The D520 also emphasizes security features that are essential for business users. It includes options for fingerprint readers and smart card readers, allowing users to enhance data protection. This level of security is particularly valuable for professionals handling sensitive information.

Battery life is another important aspect of the Dell D520. With an efficient power management system, users can expect a reasonable battery performance that allows for extended work sessions without needing to recharge frequently.

Overall, the Dell D520 combines practicality, durability, and efficiency, making it an excellent choice for business professionals who require a reliable laptop for everyday tasks. Its balance of features and performance continues to make it a suitable option for users who prioritize functionality and dependability in their computing devices.