Computer network can also be classified according to the hardware and software technology that is used to connect individual devices in the network, such as fiber optics, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn. Physical Ethernet cable to connect various devices.
Wireless LAN technology designed to connect various devices without cables. This device uses radio waves or infrared signals as a transmission medium.
ITU-T G.hn technology using the existing home cable (coaxial cable, telephone line and electricity) to create a high speed (up to 1 Gigabit / s) local area network.
Wired Technologies
Twisted-Pair Wire - This is the most widely used medium for telecommunications. Wire twisted-pair cable is a normal phone cable that consists of two copper pairs and terisolasi dipelintir be used for both voice and data transmission. Use two cables twisted together to help reduce Crosstalk and electromagnetic induction. Speed transmission centered than 2 million bits per second to 100 million bits per second.
Coaxial Cable - This cable is widely used for cable television systems, office buildings, and other worksites to local area networks. Cable consists of copper or aluminum wire which is usually packed with layers of insulation material that is flexible with a high constant dielektrik, all surrounded by the conductive layer. Layer of insulation to help minimize interference and distortion. Revolve around speed from 200 million to more than 500 million bits per second.
Fiber Optic - Cable consists of one or more thin filaments of glass fibers wrapped with a protective layer. It can be an light to travel over distance and higher bandwidth. Fiber optic cable is not affected by electromagnetic radiation. Transmission speed can be increased to as high as triliunan bits per second. Speed optical fiber is hundreds of times faster than coaxial cable and thousands of times faster than twisted-pair cable.
Wireless Technologies
Terrestrial microwave - using Earth-based terrestrial microwave transmitter and receiver. Tool looks like a satellite dish. Terrestrial oven using low-gigahertz range, which blocks all communication to line-of-sight. Path between relay stations that range approx. 30 miles separate. Microwave antenna is usually placed on buildings, towers, hills, and mountain peaks.
Satellite Communications - The satellite uses microwave radio telecommunications facilities as they are not bent by the earth's atmosphere. Satellite placed in space, usually 22,000 miles above the equator. This system orbit the Earth, capable of receiving and delivering voice, data and TV signals.
Services and PCS Systems - Use multiple radio communications technology. System divided the different geographical regions. Each district has a low power transmitter or radio relay antenna device to continue the call from one region to the region later.
Wireless LAN - local area wireless network using high frequency radio technology similar to digital service and low-frequency radio technology. Wireless LAN using spread spectrum technology that allows communication between several devices in a limited area. Examples of open standards technology wireless radio is IEEE 802.11b.
Bluetooth - A short-range wireless technology. Operate at approx.1Mbps with a range 10-100 meters. Bluetooth is a wireless protocol for open exchange of data short distances.
Wireless Web - The wireless Web refers to the use of World Wide Web through devices such as mobile phones, pager, PDA, and other mobile communication devices. Offers wireless Web services when / where the only connection
Priority
Networks are often classified as a Local Area Network (LAN), Wide Area Network (WAN), Metropolitan Area Network (MAN), Personal Area Network (PAN), Virtual Private Network (VPN), Campus Area Network (CAN), Storage Area Network (SAN), etc. depending on the scale, and cakupan purposes. Use, level of trust and access rights are often different between this type of network - for example, tend LAN intended for internal use by the system of internal organization and employees in their physical location (such as a building), while the WAN can connect physically separate from the a body to one another and may include connectivity to third parties.
Functional relationships (network architecture)
Computer networks can be classified according to functional relations existing between the network elements, eg, Active Networking, Client-server and Peer-to-peer (workgroup) architecture.
Network topology
Computer network can be classified according to the above network topology-based network, such as bus network, star network, ring network, mesh network, bus network star, tree or hierarkis network topology. Network topology indicates how the device in the network see their logical relations to one another. Use of the term "logic" here is significant. Ie, network topology does not depend on "physical" network governance parking.
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