Bandwidth friendly

As far as I know the term "bandwidth friendly" is not an official term, but a phrase I have used here. Just as something is "environmentally friendly" if it is not harmful to the environment, so "bandwidth friendly" applications do not harm the available bandwidth.

Bandwidth

"Bandwidth" can very informally be regarded as a measure of the data carrying capacity of a data transmission system such as part of a network; so put crudely, a network link with a high bandwidth will deliver large amounts of data quickly, a low bandwidth link will take a long time to deliver small quantities of data.

Further information can be found on Wikipedia, see: Bandwidth (computing).