In computer network and computer science, digital bandwidth or just bandwidth is the capacity for a given system to transfer data over a connection. It is measured as a bit rate expressed in bits per second (bits/s) or multiples of it (kbit/s Mbit/s etc.).
Digital bandwidth should not be confused with:
- Network throughput: which is the average rate of successful data transfer through a connection.
- Data transfer: which is the quantity of data transferred over a given period of time.
Bandwidth in web hosting [change]
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.
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 [change]
|56 kbit/s||Modem / Dialup|
|11 Mbit/s||Wireless 802.11b|
|54 Mbit/s||Wireless-G 802.11g|
|100 Mbit/s||Fast Ethernet|
|300 Mbit/s||Wireless-N 802.11n|
|1000 Mbit/s||Gigabit Ethernet|
|10 Gbit/s||10 Gigabit Ethernet|