Bandwidth (computing)
In computer network and computer science, digital bandwidth or just bandwidth means the amount of data that can be sent from one point to another in a certain period of time.[1] It is measured as a bit rate expressed in bits per second (bits/s) or multiples of it (kbit/s Mbit/s etc.)[1]
Digital bandwidth should not be confused with:
Bandwidth in web hosting
In web hosting, the term "bandwidth" is often used to describe the amount of data transferred to or from the website within a defined period of time. Another more specific phrase used for this meaning of bandwidth is monthly data transfer.[2]
Web hosting companies often quote a monthly data transfer for a website, for example 500 gigabytes per month. If the total amount of data downloaded from the website in a particular month reaches this limit, the hosting company may shut off further public access to the site.
Internet connections bandwidths
Bandwidth | Connection type |
56 kbit/s | Modem / Dialup |
1.544 Mbit/s | T1 |
10 Mbit/s | Ethernet |
11 Mbit/s | Wireless 802.11b |
43.232 Mbit/s | T3 |
54 Mbit/s | Wireless-G 802.11g |
100 Mbit/s | Fast Ethernet |
155 Mbit/s | OC3 |
300 Mbit/s | Wireless-N WiFi |
622 Mbit/s | OC12 |
1000 Mbit/s | Gigabit Ethernet |
2.5 Gbit/s | OC48 |
9.6 Gbit/s | OC192 |
10 Gbit/s | 10 Gigabit Ethernet |
Broadband
Sometimes, the word "broadband" is used to mean "high-speed", especially with high-speed internet connections. "Broadband" means "wide band", and suggests high-speed. However, the term is not clear; "high-speed" is more clear. A dial-up telephone connection is most often thought to be low-speed, at less than 56,000 bit/s (bits per second). High-speed is usually 200,000 bit/s or faster. DSL (Digital Subscriber Line) or Cable modem connections are usually high-speed.
References
- ↑ 1.0 1.1 "bandwidth". SearchEnterpriseWAN.com. Archived from the original on 24 April 2016. Retrieved 24 April 2016.
- ↑ "How much web hosting bandwidth do I need?". GreenGeeks®, LLC. Archived from the original on 1 May 2016. Retrieved 24 April 2016.