GPS stands for the Global Positioning System. This is a navigational system that is made up of satellites that are able to locate a receiver anywhere on earth. This system is the only fully functional satellite navigation system and work by radio signals that are sent electronically between the receivers and the satellites. It is able to work both day and night, regardless of the weather and is available to anyone who has a working GPS device.
Twisted pair cables such as CAT5, CAT5e, CAT6 and CAT6a cable are a low cost and easy installation alternative to traditional coax cables for transmitting KVM and AV signals.  KVM (keyboard-video-mouse) extenders via CAT5 may be used to remove computers from harsh or sensitive environments, or to restrict physical access to the computer. Video extension products such as VGA, DVI, S-Video or HDTV extenders via CAT5 are used to extend video displays. Each extender consists of two units - the local and remote units, which are interconnected using a CAT5/5e/6 cable.