Portable GPS devices are instruments that can be taken from one place to another. They are mostly handheld systems. They have a hardware component, which is supplemented with a software program. These devices are used in automotives, and other gadgets such as mobile telephones, PDA’s, laptops, etc. Most advanced portable GPS devices have audio and video players as well, and the memory is large enough to store some movies, and songs. Some of the portable GPS devices also facilitate taking photographs.
