Technology Briefing 4 Part B

Technology Briefing 4 Part B - Technology Briefing 4...

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Technology Briefing 4 – Networking (continued) III. Networking Fundamentals A. Servers, Clients, and Piers A network consists of three separate components – servers, clients, and peers. 1. A server is any computer on the network that makes access to files, printing, communications, and other services available to users of the network. 2. A client is any computer that uses the services provided by the server. 3. A peer is any computer that may both request and provide services. The trend in business is to use server-centric networks in which servers and clients have defined roles. Peer-to-peer networks that enable any computer or device on the network to provide and request services can be found in small offices and homes. B. Network Services The network operating system (NOS) is system software that controls the network and enables computers to communicate with each other. Examples of NOSs are Novell NetWare, Microsoft Windows Server, and Converging Technologies LANtastic. C. Transmission Media – the physical pathways to send data and information between two or more entities or a network. Bandwidth – the transmission capacity of a computer or communications channel, often measured in megabits per second (Mbps); it represents how much binary data can be reliably transmitted over the medium in one second. Attenuation – the weakening of a electric signal as it is sent over increasing distance. Electromagnetic interference (EMI) – occurs when fluorescent lights, weather, or other electronic signals interfere with a signal being sent. D. Cable Media Cable media physically link computers and other devices in a network. The most common types are below. 1. Twisted pair cable – made of two or more pairs of insulated copper wires twisted together. 2. Coaxial cable – contains solid inner copper conductor, surrounded by plastic insulation and an outer braided copper or foil shield. 3. Fiber-optic cable – made of light-conducting glass or plastic core, surrounded by more glass,
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This note was uploaded on 05/10/2010 for the course ACCT ISDS taught by Professor Cope during the Spring '10 term at S.E. Louisiana.

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Technology Briefing 4 Part B - Technology Briefing 4...

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