Eight years ago my internet was using a current over a copper wire. Now it's light through glass. The latter is much more efficient especially over longer distances.
Eight years ago my internet was using a current over a copper wire. Now it's light through glass. The latter is much more efficient especially over longer distances.
But processing and retranssmission of the data at every network node still takes energy
Eight years ago, your ISP was already on light over glass, they just didn't serve it that way to your house.