Plotter a local area network a local area network

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Plotter A Local Area Network A Local Area Network
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Common LAN Topologies Star
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Common LAN Topologies Ring
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Common LAN Topologies Bus
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Satellite Satellite Earth Earth station Earth Earth station Telephone Telephone company company central office central office Telephone company central office Telephone Telephone company company central office central office Telephone Telephone company company central office central office Local Local loop loop User’s User’s modem modem Microwave Microwave tower Microwave Microwave tower tower IXC circuit IXC circuit (interexchange channel) channel) IXC circuit (interexchange channel ) Local Local loop loop Wide Area Wide Area Network Network User’s User’s modem modem 10-27
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Control of Data Communications Networks Centralized Point-of-sale terminals Data collection terminals Distributed processing Receiving computer runs programs that use data Client/server processing Mixes centralized and decentralized processing strategies
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Communications Hardware Modem Converts digital to analog and vice versa Bits per second determines transmission speed Local loop Hub Receives a data packet from a computer at one end of one spoke of the star topography and copies its contents to all other computers Manageable hubs Router Device that connects many LANs More sophisticated than a bridge Process header information of a packet Switch Filters data not intended for a computer on a particular network
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This week home work is using MS Excel to import and analyze data from database tables Copy or download the a/r files Prepare aging schedule and estimate uncollectible amount
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  • Fall '19
  • Computer network, Local area network

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