Difference between revisions of "Speed of Broadband"
m (Speed moved to Speed of Broadband: generalisation) |
|||
| (6 intermediate revisions by one other user not shown) | |||
| Line 1: | Line 1: | ||
==Description | ==Description== | ||
Technically, speed of broadband is measured in terms of data per second. | Technically, speed of broadband is measured in terms of data per second. Nevertheless, from a user perspective, the speed of broadband is the speed at which they are able to download critical information, such as e-mails, movies or music files. | ||
==Enablers | ==Enablers== | ||
- Improvement data carriage medium: cable & wireless | - Improvement data carriage medium: cable & wireless | ||
| Line 19: | Line 19: | ||
- Improvement of QoS technologies | - Improvement of QoS technologies | ||
==Inhibitors | ==Inhibitors== | ||
- Mobility: increase ad-hoc and basic usage | - Mobility: increase ad-hoc and basic usage | ||
| Line 33: | Line 33: | ||
- Real world limitation (output becomes slower than throughput) | - Real world limitation (output becomes slower than throughput) | ||
==Paradigms | - Hardware bottleneck: the ethernet hub capacity | ||
==Paradigms== | |||
As we spend more time on line and people have more access to computers, we change in the way we tolerate (download) delays and we expect instant access to information. | As we spend more time on line and people have more access to computers, we change in the way we tolerate (download) delays and we expect instant access to information. | ||
| Line 39: | Line 41: | ||
Because of the populatiry of file sharing and shared archives, there is a change in the perception of ownership of files (why downloading/ saving when you can access infomation any time). | Because of the populatiry of file sharing and shared archives, there is a change in the perception of ownership of files (why downloading/ saving when you can access infomation any time). | ||
==Experts | ==Experts== | ||
IEEE- standard development | IEEE- standard development | ||
| Line 51: | Line 53: | ||
Cisco | Cisco | ||
==Timing | ==Timing== | ||
[[Image:56kmodem.jpg|thumb|200px|right|Good old 56k modems. Still widely used worldwide.]] | |||
* 1940 : First data transfer between two electronic devices | |||
* 1962 : [http://en.wikipedia.org/wiki/Arpanet ARPANet], first proper network. 50 kbit/s | |||
* 1988 : [http://en.wikipedia.org/wiki/Dsl DSL] Project starts, using unused frequencies on a copper phone line (Theoretical limit of 8Mb/s for [http://en.wikipedia.org/wiki/Adsl ADSL], 24Mb/s for [http://en.wikipedia.org/wiki/ADSL2%2B ADSL2+]) | |||
* 1990 : [http://en.wikipedia.org/wiki/Cable_internet Cable Internet] reaches high popularity (Generally around 16 KB/s - 512 KB/s) | |||
* 1996 : Commercial fiberoptic cables for infrastructure | |||
* 1998 : 56K modems and dial-up become widely used | |||
* 2000 : Users converti to Cable Internet and ADSL, getting the first step on broadband | |||
* 2003 : Personal Wireless LAN's become a commodity | |||
==Web Resources:== | ==Web Resources== | ||
http://www.wtop.com/index.php?nid=108&sid=805001&sidelines=1 | |||
Latest revision as of 14:33, 11 June 2006
Description
Technically, speed of broadband is measured in terms of data per second. Nevertheless, from a user perspective, the speed of broadband is the speed at which they are able to download critical information, such as e-mails, movies or music files.
Enablers
- Improvement data carriage medium: cable & wireless
- Improvement compressing technologies
- Growth of the new economy (dot.com industries + shift of existing industry to online services)
- Growth of VOIP and further shifts in communication methods from tradtional to digital (i.e. fax replaced by e-mail, TV replaced by WEBTV)
- Growth of online industry platforms
- Mobility: increase usage of broadband functions outside of home/office
- Improvement of QoS technologies
Inhibitors
- Mobility: increase ad-hoc and basic usage
- 2nd Dot.com crash
- Cost of marginal efficiency
- Switching cost for users
- Exit Barriers (inhibits Telecom industry to switch from one technology to the other)
- Real world limitation (output becomes slower than throughput)
- Hardware bottleneck: the ethernet hub capacity
Paradigms
As we spend more time on line and people have more access to computers, we change in the way we tolerate (download) delays and we expect instant access to information.
Because of the populatiry of file sharing and shared archives, there is a change in the perception of ownership of files (why downloading/ saving when you can access infomation any time).
Experts
IEEE- standard development
Telecom companies
FLAG- (Connection of countries to)
Vint Gray Cerf
Cisco
Timing
- 1940 : First data transfer between two electronic devices
- 1962 : ARPANet, first proper network. 50 kbit/s
- 1988 : DSL Project starts, using unused frequencies on a copper phone line (Theoretical limit of 8Mb/s for ADSL, 24Mb/s for ADSL2+)
- 1990 : Cable Internet reaches high popularity (Generally around 16 KB/s - 512 KB/s)
- 1996 : Commercial fiberoptic cables for infrastructure
- 1998 : 56K modems and dial-up become widely used
- 2000 : Users converti to Cable Internet and ADSL, getting the first step on broadband
- 2003 : Personal Wireless LAN's become a commodity
Web Resources
http://www.wtop.com/index.php?nid=108&sid=805001&sidelines=1