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14 Cards in this Set
- Front
- Back
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The Public Switched Telephone Network (PSTN)
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The Public Switched Telephone Network (PSTN) supports telephone service and is the world’s collection of interconnected commercial and government-owned voice-oriented systems
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Internet
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The biggest network of all; Global network allows worldwide connection
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LAN
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connect personal computers, workstations, and other devices such as printers and scanners in a limited geographical area
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WAN
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covers a large geographical area and can contain communication links; is made up of several connected local area networks
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Peer-to-peer network
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All computers are equal
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Client/server network
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Server manages resources
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Intranet
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Used within an organization
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Extranet
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Specific outside users can access
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Modem
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Converts analog signals to digital and vice versa
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Cable modem
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Uses coaxial cable
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Digital subscriber line
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Uses ordinary phone lines
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Firewalls
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security measure to protect companies’ networks from external networks
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hub
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is a device that controls the incoming and forwarding of data
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Hackers
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people who break into computer systems to steal services and information
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