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Networks, switch-23317_960_720, BELNET-CAT6-UTP-Gigabit-Cable-de-red…
Networks
Concepts
Connected by cables, radio signals, telephone lines and satellites.
Advantages
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Access to online services, entretainment and communities
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Devices
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Switch
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Receives messages and checks who it is addressed to, only sending it to that specific computer
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Types of Networks
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Wide Area Network (WAN)
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Use optical fibre cables, satellite and microwave radio links
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Network topologies
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Long, central cable used to connect computers together
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Ring network
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Although the cable is broken, the computers stay connected
Star Network
Computer connected to a central device, that passes massages between computers
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Depends on the functioning of the central device, but can work with a broken cable
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Intranet
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Used to
Viewing internal web pages (e.g. company calendars, etc.)
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Extranet
Private network that provides businesses (suppliers, vendors, partners, customers)
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