You can also mark specific spots and store them in the satnav's memory, so you need never miss the turning for Great Aunt Agatha's country cottage ever again. These are called points of interest or POIs.
Some critics have started to moan about how safe satnav systems are to use. They see them as a distraction that can cause accidents. It is true you should always pay attention to the road - and never try to program the thing while you're on the move.
That said, we can't really see how an electronic device giving you step-by-step insructions to your destination is any less safe than stuggling to unfold a paper map at 70mph on the M1.
More on this in the
next section...
