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| Network bandwidth capacity | |
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In computer networking, bandwidth in bit/s sometimes means the net bit rate (also known as peak bit rate, information rate or physical layer useful bit rate), channel capacity, or the maximum throughput of a logical or physical communication path in a digital communication system. For example, bandwidth tests measure the maximum throughput of a computer network. The reason for this usage is that according to Hartley's law, the maximum data rate of a physical communication link is proportional to its bandwidth in hertz, which is sometimes called frequency bandwidth, spectral bandwidth, RF bandwidth, signal bandwidth or analog bandwidth.
[edit] Tags:Computer Networking,Signal Bandwidth,Hertz,Bit Rate,Channel Capacity,Throughput,Net Bit Rate,Maximum Throughput,Bandwidth Tests,Hartley's Law,Bandwidth In Hertz,Rf,Bandwidth Test, | |
| Network bandwidth consumption | |
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In computer networking, bandwidth in bit/s may also refer to consumed bandwidth, corresponding to achieved throughput or goodput, i.e., the average rate of successful data transfer through a communication path. This sense applies to expressions such as bandwidth shaping, bandwidth management, bandwidth throttling, bandwidth cap, bandwidth allocation (for example bandwidth allocation protocol and dynamic bandwidth allocation), etc. A bit stream's bandwidth is proportional to the average consumed signal bandwidth in Hertz (the average spectral bandwidth of the analog signal representing the bit stream) during a studied time interval.
[edit] Tags:Goodput,Bandwidth Shaping,Bandwidth Management,Bandwidth Throttling,Bandwidth Cap,Bandwidth Allocation,Bandwidth Allocation Protocol,Dynamic Bandwidth Allocation, | |
| Multimedia bandwidth | |
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Digital bandwidth may also refer to: multimedia bit rate or average bitrate after multimedia data compression (source coding), defined as the total amount of data divided by the playback time.
[edit] Tags:Average Bitrate,Data Compression,Source Coding, | |
| Bandwidth in web hosting | |
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In website hosting, the term "bandwidth" is often[citation needed] incorrectly used to describe the amount of data transferred to or from the website or server within a prescribed period of time, for example bandwidth consumption accumulated over a month measured in gigabytes per month. The more accurate phrase used for this meaning of a maximum amount of data transfer each month or given period is monthly data transfer.
[edit] Tags:Website Hosting, | |
| Internet connection bandwidths | |
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This table shows the maximum bandwidth (the physical layer net bitrate) of common Internet access technologies. For a more detailed list see list of device bandwidths, bit rate progress trends and list of bit rates in multimedia.
56 kbit/s
Modem / Dialup
1.5 Mbit/s
ADSL Lite
1.544 Mbit/s
T1/DS1
10 Mbit/s
Ethernet
11 Mbit/s
Wireless 802.11b
44.736 Mbit/s
T3/DS3
54 Mbit/s
Wireless 802.11g
100 Mbit/s
Fast Ethernet
155 Mbit/s
OC3
600 Mbit/s
Wireless 802.11n
622 Mbit/s
OC12
1 Gbit/s
Gigabit Ethernet
2.5 Gbit/s
OC48
9.6 Gbit/s
OC192
10 Gbit/s
10 Gigabit Ethernet
100 Gbit/s
100 Gigabit Ethernet
[edit] Tags:Modem,Net Bitrate,List Of Device Bandwidths,Adsl Lite,T1/ds1,Ethernet,802.11b,T3/ds3,802.11g,Fast Ethernet,Oc3,802.11n,Oc12,Gigabit Ethernet,Oc48,Oc192,10 Gigabit Ethernet,100 Gigabit Ethernet, | |
| See also | |
| 2>
92 Code
Bandwidth cap
Bandwidth extension
Bandwidth hogging
Bandwidth optimization
Bandwidth test
Bandwidth theft
Bit rate
Broadband
Comparison of latency and throughput
Goodput
List of device bandwidths
Measuring network throughput
Narrowband
Signal processing
Throughput
[edit] Tags:92 Code, | |
| References | |
| 2>
^ Andrew S. Tanenbaum Computer networks, Prentice Hall PTR, 2003
^ Douglas Comer, Computer Networks and Internets , page 99 ff, Prentice Hall 2008.
^ Fred Halsall, Introduction to data communications and computer networks, page 108, Addison-Wesley, 1985.
^ Cisco Networking Academy Program: CCNA 1 and 2 companion guide, Volym 1–2, Cisco Academy 2003
^ Behrouz A. Forouzan, Data communications and networking, McGraw-Hill, 2007
Retrieved from "http://en.wikipedia.org/w/index.php?title=Bandwidth_(computing)&oldid=475326821"
Categories: Electronics termsHidden categories: All articles with unsourced statementsArticles with unsourced statements from November 2011
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