Network interfaces and USB

We suppose sitting in a cafe in an airport or on the many of us think about energy consumption of Wi-Fi. But when we copy data from flesh card we don't think about it at all. But it is unjustified.

The time of the unmanaged mode of the mobile computer when min Wi-Fi loaded

If you sit with turn on Wi-Fi it practically does not consume energy. If you use Internet during it the results change a few ??“ data flow will be low.

The time of the unmanaged mode of the mobile computer when max Wi-Fi loaded

And if you will start to copy a film from one laptop to another using Wi-Fi the energy won't consume a lot. It's seen from the results.

The time of the unmanaged mode of the mobile computer when max Ethernet loaded

Viewing this diagram it is possible to think that Ethernet needs more energy for operation. No, it does not at all. We explain these results with more serious loading of the hard disk. When we tested Wi-Fi, the speed of data copying was not more 20-22 Mbit/sec (connection was set through the 802.11g standard). And with the Ethernet the speed was 80-85 Mbit/sec. It is necessary to think that Wi-Fi 802.11n standard is able to discharge the accumulator quicker than the previous releases of Wi-Fi standard. In our article "Unwinding Home net Wi-Fi" we've tested it speed and it was higher.

The time of the unmanaged mode of the mobile computer when max USB loaded

USB is not the most saving interface. Constant copying from flash card to the hard disk and back to front is able to reduce the operation from 30 to 80 minutes. It is too considerable for such a insignificant operation.