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Networking Tutorials

Networking Tutorials

NETWORKING TUTORIALS What is Network?
A network or communication network is a system of interconnected communication devices that can communicate with one another and share information. Therefore computer network can be defined as:
A system in which more than one computers or large number of computers are interconnected together, communicate freely with one another and share information is called computer network.
A network can be internal to an organization or span the world by connecting itself to the internet. In computer network, network operating system is used that controls and co-ordinates the activities of computers that are connected to the network. The example of these operating systems are: windows NT, UNIX, and Novell etc.

Types of Network
Networks are of three types. These are:
  • Local Area Network (LAN)
  • Wide Area Network (WAN)
  • Metropolitan Area Network (MAN)

    Local Area Network
    A local area network is a network system in which computers are interconnected in a limited geographical area, such as network of computers in college computer laboratory or network of computers in office building etc.

    Wide Area Network
    A wide area network is a network system that covers a large geographical area such as different cities of country or different countries of the world. In WAN telephone lines, satellites, microwave, fiber optic etc. are used as transmission media.

    Metropolitan Area Network
    A Metropolitan area Network is a network system that covers area of a single city. Usually, MAN connects more than one LANS in a city or town and covers a smaller geographical area than a WAN. The cable television, telephone companies or local corporations use MAN.

    Cleaning and Care: How to Extend the Life of Your Faucets and Fixtures

    Cleaning and Care: How to Extend the Life of Your Faucets and Fixtures

    Cleaning and Care: How to Extend the Life of Your Faucets and Fixtures Faucets, Shower Systems, Handshowers, Sinks, Baths & Tubs
    In general, most common household cleaners meet the criteria for cleaning any finish product. Avoid industrial cleaners and abrasive cleaners, such as those used for toilet bowls and green Scotch-Brite? heavy-duty scrub sponges. Please read the cleaning product's instructions, contents and cautions on any new cleaner before using it. Avoid bleach, products that state on the label that they remove tarnish and rust, and those containing hydrofluoric, hydrochloric and/or phosphoric acids or caustic agents. For stubborn stains and/or mineral deposits, a mild abrasive cleaner can be used. Current examples of mild abrasive cleaners are Bon-Ami, Barkeeper's Friend, Zud or Soft Scrub without bleach. Manufacturers of cleaning agents always have the prerogative of changing their formulation without notice so it is important to always look at the ingredients of a cleaner prior to its use.
    After every cleaning we recommend applying a coating wax which will help prevent water spotting and mineral build-up. You may use an aerosol furniture polish, a good quality car wax, or floor paste wax for this purpose.

    Stainless Steel Sinks : Rinse thoroughly and use a soft cloth to wipe the product dry after each use. Soft abrasive cleaners may be used but strong abrasive products will dull and tarnish the finish. Scratches are inevitable in any sink material, including stainless steel. Over time, these scratches will become uniform with the sink's grain. Most minor scratches can be softened with a soft scour pad, accompanied with a deep cleansing agent. Apply cleansing agent, rub vigorously with the ?grain? or finish of the sink. Do not just rub against the grain in one area, you must rub across entire surface, then rinse thoroughly.
    For severe scratches, purchase a pumice rubbing compound from a hardware store, and follow the directions on the package. Note: Once the sink's finish has been restored to your satisfaction, a customized sink grid is recommended to protect the bottom surface of the sink.

    Glass Sinks & Bowls : It is very important to follow the manufacturer's cleaning and care instructions to avoid damage to the bowl's surface. Most stains can generally be removed by using a mild soap with water. The glass bowl should be wiped dry with a soft cloth after each use. Strong abrasive cleaners will scratch and dull the surface.

    Toilets and Bidets : Soft abrasive cleaners may be used when necessary to clean vitreous china products. Strong abrasive cleaners will scratch and dull the surface. Use toilet bowl cleaners on the inside of the bowl only. Do not use in-tank toilet cleaners as they can damage the flush valve or other working parts. Wipe any splashes of cleaner solutions from plastic or plated surfaces immediately. Care tip: Over time, hard water deposits may clog toilet rim holes and trapways. To clean, purchase a commercial cleaner that's recommended for the removal of hard water deposits. Follow all instructions on the package.
    Success with cleaners and procedures is dependent upon such factors as the hardness and temperature of the water, using exact quantities of ingredients, changes in cleaning formulas and the condition of the product being cleaned. Since there are variations within these factors, Every Faucet cannot guarantee the effectiveness of the formulas mentioned.

    Whirlpools and Air Tubs : To prevent bacterial growth in Whirlpool piping, clean the system at least twice a month, following this procedure:
  • Adjust the jets so there is no air induction.
  • Fill the unit with hot water to a level above the highest jets. (Caution: don't start the whirlpool without making sure there is water above the highest jets. Running a whirlpool without water will damage the pump seals causing the pump to fail or leak.)
  • Add to the water two teaspoons of low-foaming dishwasher detergent such as Calgonite or Cascade (powder), and four ounces of household bleach, such as Clorox.
  • Run the whirlpool for 10-15 minutes with the air control fully open for maximum turbulence.
  • Drain, refill the tub with cold clear water to 2"-3" above the highest jets Run the unit again for another 5-10 minutes to "rinse." Then, drain the tub completely.
  • Wipe dry with a soft cloth.
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