data communication and is still being used for TV cable. Fibre optics transmits light and is very efficient. They usually deserved for connections between devices in larger networks, though in some very demanding environments, highly fault resistant fibre-optic cable is used to connect desktop workstations to the network and to link adjacent buildings. Fibre-

UTP category 5 wiring. Coaxial cable consists of an insulated single inner wire made of two conducting elements (one being copper) surrounded by a hollow outer cylindrical conductor (comprising half the electrical circuit and shielding the inner wire). We measure the size of coax cable in RG and the resistance in Ohm. Coaxial cable is less expensive than fibre-optic cable, is well known, and has been used for many years for all types of

2. A network interface on each computer (the device that lets the computer talk to the network; usually called a Network Interface Card [NIC] or adapter).

3. A connection medium; usually a wire or cable, but wireless communication between networked computers and peripherals is also available. Networks use three primary types of wiring: Unshielded Twisted Pair cable consists of a number of twisted pairs with a plastic casing. It is used in PSTN (Public switched telephone networks ). You have different categories in UTP ranging from 1 to 5. For instance, while Ethernet can use UTP category 3 wiring, Fast Ethernet and Gigabit Ethernet require at least the higher-grade

Expressing: make clear what your needs are, and how to have them met without hurting others. Being assertive does not mean being pushy or demanding. It means being respectful of yourself and others. Suppressing: holding in anger, trying to convert it into something positive. Or taking action when you are not as angry and can focus. The key here is that the suppressed behavior must be expressed eventually or it may lead to a multitude of problems as referenced earlier. Calming: controlling internal responses, taking steps to lower heart rate, calm you down and let the feelings subside. In conclusion, computers were created because they did certain jobs better and more efficiently than a human. Computers can solve problems in a fraction of the time it takes man. In our days technology moves forward and these “machines” which were only a tool, became a part of our life. We use them in every sector of our day. At the rate computer technology is growing now; we can expect further dramatic developments before the end of the decade. Networks end especially Internet are a world unlimited possibilities. This World is our future!

Switched The central switch, which could be a telephone exchange, is used to connect different devices on the network directly. Once the link is established, the two devices communicate as though they were directly linked without interference from any other devices. Multiple switches can be used to create alternative transmission routes.

4. Network operating system software; such as Microsoft Windows 95, 98, 2000 or Windows NT and Novell NetWare. An operating system is a master control program, which controls the functions of the computer system as a whole and the running of application programs. All computers do not use the same operating systems. It is therefore important to assess the operating system used on a particular model before initial commitment because some software is only designed to run under the control of specific operating systems. The cost of software is likely to be lower in such circumstances as the development costs are spread over a greater number of users both actual and potential.5. Most networks; even those with just two computers; also have a hub or switch to act as a connection point between the computers. Hubs or repeaters are simple devices that interconnect group of users. Hubs forward any data packets they receive over one port from one workstation; including e-mail, word processing documents, spre

Some topics in this essay:
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