NEC M380 manual How do search engines work?, How can I narrow down a search on the Internet?

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How do search engines work?

Searching the Web actually means searching intermediate databases since it is not possible to directly search the World Wide Web, which contains an estimated 1 billion documents. The Web is the totality of web pages found in computers (called "servers") worldwide.

Search engines use software or robot programs (called “spiders”) to search the Net for documents and the corresponding addresses (Uniform Resource Locator). These documents and web addresses are then collected in the search engine's indexing software. The indexing software, after getting information from the documents, stores the information in a database. Indexing the information varies depending on the type of engines. Some engines index key words in a document while others index the document title. When you perform a search, the database is being searched for documents that match, and the results are displayed on a web page.

There are two main categories of Internet search tools:

-Search engines and meta-search engines work by processing the search terms you type in and listing the possible web sites that can be found under that subject. Examples of search and meta-search engines are AltaVista and Metacrawler.

-Subject directories display by categories. These categories are organised into hierarchies or a list from generic to specific topics. Yahoo is an example of a subject directory where links are sorted in hierarchical structure.

How can I narrow down a search on the Internet?

Use several key words - if you are searching for 1980s pop music, use the key words “music” and “80s” in your search for better results. Be sure to spell the words correctly to minimise getting an error page.

Be as specific and precise as possible - like searching a library catalogue, the more specific the search is the more effective it will be.

Be careful when using punctuation marks - some users search by typing a question. For example: '”What is 80s music?” This option allows the search engine to come up with several sites that may be of interest to the user. Compared to a target-specific search, this option has more flexibility by delivering a wider range of topics under 1980s popular music.

Speed up the search by using Boolean expressions - these expressions are AND, OR, and NOT. The Boolean expressions can be used to connect words and phrases in a search request.

Use the '+,' '-' signs - for certain search engines, the signs '+', '-' before a word respectively include or exclude it. Do not include a space between these signs and the searched words.

Refer to the search engine's Help pages - it may offer relevant tips or offer shortcuts that you might have missed. The Help pages also give a guide on how to properly use the engine and get better results.

Try using synonyms or re-phrasing the search - for example, instead of ”80s” you can use the word “eighties” or "lunar expeditions" for "moon expeditions." At the same time try to refine the search by adding specific details.

What are the cookies?

A cookie is a small piece of information written to the hard drive of an Internet user whenever the user visits a Web site that offers cookies. Although cookies are tiny files (around 255 characters and 4k of disk space), it contain miscellaneous information such as the name of the Web site that issued them, pages viewed by the user, log-in names and credit card numbers that have been supplied via forms.

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Contents NEC Versa M380 Series Table of Contents Text Setup About Your Electronic User’s GuideElectronic User’s Guide For specific models onlyBasic Care and Handling Tips Precautions for Notebook Use Be sure to follow these power cord safety tipsRoutine Cleaning Storage RequirementsIntroducing Your NEC Versa Getting to Know Your NotebookFront View of the Notebook Indicator Wireless PowerDescription LEDs Email ButtonBack View of the Notebook Left Side View of the NotebookRight Side View of the Notebook Battery Security Lock Battery Bay Battery Release Latch Bottom View of the NotebookKeyboard LED Behaviour Indicates that Wireless LAN is enabled Wireless technology boardOnly This indicates that ECO mode is enabled Green IndicatorPower Button Optional AccessoriesFunction Keys Using the Touchpad Touchpad Tips Power Sources AC AdaptorPowering The Notebook On and Off Connecting the AC AdaptorUsing the Battery Connect the AC adaptor as followsCharging the Battery Low Battery PowerConserving Battery Power Power Management FeaturesReplacing the Battery Battery PrecautionsRemoving the Battery in your Notebook Installing the Battery in your NotebookHandling the Battery Disposing of the BatteryIntroducing Bios Setup for Windows Vista Entering Bios SetupBios Setup Menus Use Bios Setup toIntroducing Bios Setup for Windows XP Press F2 to Enter Bios Setup F8 to Display Boot OrderUpdating the Bios Windows Vista Operating System Setup For Windows Vista Operating system setupWindows Vista Operating System Introduction Windows Vista Operating SystemsDual Boot 2 languages For Hong Kong dual boot models onlyWindows Language Selection Windows Vista Operating System Desktop IconsTaskbar Icons Start Menu Technical Support InformationManaging System Power Windows Vista Operating System Windows Vista Operating System Power Options PropertiesPower Plan Alarms AdvancedTips for Using Windows Vista Frequently Asked Questions FAQ Windows VistaWindows XP Operating System Introduction Windows XP Operating SystemsOnly applicable to Windows XP Windows XP Operating System Setup For Windows XP Operating system setupIntroduction → Windows XP Operating System Setup Among the new features are IntroductionWindows XP Operating System Professional versus Home EditionDesktop Icons Taskbar IconsStart Menu Windows XP Operating System Power Options Properties Managing System Power Windows XP Operating SystemPower schemes Technical Support InformationNone Power Meter HibernateChecked Windows XP Operating System Power Management States Recognising the Power Management StatesGo to Start, Turn off computer, Standby Close the LCD panel Tips for Using Windows XP Booting in Safe ModeRestarting in Safe Mode Changing the AutoPlay Setting Changing the Display ResolutionDebugging Mode Internet Connection WizardEstablishing Passwords Click on Start, Control Panel, and Appearance and ThemesCustomising the Taskbar Customising the DesktopSystem Configuration Label Applications Adobe ReaderBluetooth Wireless Technology Blu-ray Page CyberLink MakeDisc Easy DVD Burning for the Digital HomeImport All Kinds of File Formats Including Record TV Create Stylish DVD MenusEasy Media Creator MusicData Back UpMore Features Advanced OptionsIntel Turbo Memory McAfee Personal Firewall Proven security that helps prevent hacker attacksKey Features McAfee SecurityCenterMcAfee VirusScan Proven security that protects against viruses and spywareNorton Internet SecurityTM SRS Premium Sound Using your NEC Versa Removable Disk Drives General Information about Optical DiscsOptical Drive Disc LoadingDisc Care Optical Disc Drive CareBays Hard Disk DriveProtecting Your Notebook From Power Outages Taking Care of Your NotebookProtecting Your Notebook From Damage Keeping Your Notebook in Good Condition Security Operating Environment Preventive Maintenance First Time UseDaily WeeklyShipping Your Notebook Use these steps to prepare your notebook for shippingWireless LAN/Bluetooth Wireless Technology Connecting using a ModemModem Local Area Network LANPower Connections Preparing for TravelWhat To Take Getting Through CustomsConnecting / Using Your Modem Connecting / Using a LANUsing Peripheral Devices USB Devices Audio VideoSetting Up a Healthy Work Environment Vary Your Workday Practise Some Stretching ExercisesArrange Your Equipment Your ChairCheck the following Your Desk Your Input DevicesYour Screen Reducing the Risk of Injuries Vary Your WorkdayPractise Some Stretching Exercises Potential Medical Conditions Repetitive Strain InjuryThree Stages of Repetitive Strain Injury Epilepsy Warning Pre-Existing Conditions and Psychosocial FactorsProblem Checklist Problem ResolutionStart-Up Problems If You Need AssistanceRecovery Information for Windows Vista only NEC Recovery Program from backup partitionFull Recovery Partial RecoveryBackup your personal files Return your notebook to its original configurationPage Page If You Wish to Perform a Full Recovery Other filesRecovery Information for Windows XP only Starting the Recovery Program If you wish to perform a Complete Recovery Select Partial Recovery and click on NextFrequently Asked Questions Where can I find the call centre phone number?Boot Problems Computer VirusesTechnical Support What is a computer virus? What can I do to keep my notebook virus-free?Is my notebook virus-free? What are the different types of viruses?Internet How do I connect to the internet?How do search engines work? How can I narrow down a search on the Internet?Digital Video and Ieee 1394 Devices Ieee 1394 DevicesAre cookies a threat to privacy? Can a virus attach itself to cookies?What is the Digital Video DV format? Digital VideoWhat are the benefits of Digital Video? Safety Notices Safety Warning Modifications to the ProductRadio Frequency Interference Statement Radio Frequency InterferenceSafety Extra Low Voltage Selv Connections and Remote EarthProtected Extra Low Voltage Pelv Remote EarthPower Supply and Cables Power SupplySingapore, Hong Kong, Bangladesh and Maldives PhilippinesBatteries Laser Compliance Statement Thunderstorm WarningRadio-communication Regulation if applicable Additional NoticesElectrostatic Discharge ESD and ESD Protection Product Storage Environment GuidelinesRecommended Environment OperationLAN Wireless LAN GlossaryTerm Definition Ieee107 108 Copyright CopyrightDisclaimer Trademarks Official Name of the Software Used