Upload and download speed is also affected by the distance between your computer and the server that is either sending or receiving data. In general, the greater the distance the slower the speed of the data transfer.
Work can be defined as transfer of energy. In physics we say that work is done on an object when you transfer energy to that object. If one object transfers (gives) energy to a second object, then the first object does work on the second object.
The work of a human life might be the movement of one set of papers or one group of numbers from one location to another. We have kids, but then we go to work and they go to school (so that they can later go to work, thus closing the circle). Often, our lives cross only briefly, like ships in the night.