Chapter 8 Notes - mms sms ftth wap Trojan Worm Virus Ethernet Tcp\/ip Van Wan Lan Topology Architecture Man Hub Router Groupware Communications Computer

Chapter 8 Notes - mms sms ftth wap Trojan Worm Virus...

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mms sms ftth wap Trojan Worm Virus Ethernet Tcp/ip Van Wan Lan Topology Architecture Man Hub Router Groupware Communications
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Computer comm describes a process in which two or more computers or devices transfer data, instructions, and info Sending device----comm channel----receiving device Uses of Computer Comm Gps is nav system with one or more earth based receivers that accept and analyze signals sent by satellites in order to determine receiver’s geo location Built into many mobile devices, available as handheld device Web services Enables programmers to create apps that comm with other remote computers over the internet or internal bizz network Mashup Combines services from two or more sources Requirement of modern networking Handling multiple types of traffic (voice, video, data) all with individual characteristic that make very diff demands (sometimes downright opposed to eachother) of the comm channel Fair and equitable way of charging for transport services, to provide the user with economically priced access, and the carrier with a profitable ROI Reliability and flexibility of comm links Ensuring accessibility to network capacity for both existing and future equipment and services with min disruption in existing operations Voice traffic Generation is asynchronous ( speaker may speak at anytime) Transmission must be synchronous ( once starts it must flow continuously as spoken) Bandwidth required for voice conversation in digital comm is relatively small and constant (64k) Signals may contain high degree of error and the info can still be retrieved correctly Data traffic Generation could be either asynchronous (text) or synchronous (telemetry)
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Transmission in general can asynch (
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  • Fall '12
  • YvonneGalusha
  • Gigabit Ethernet, mobile devices, telephone network, wireless transmission, comm channel

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