Provisioners are tools that allow users to customize the configuration of virtual environments. Haptic technology can provide touch sensation in virtual and real environments. Robotics also has application in the design of virtual reality interfaces. Special input devices are required for interaction with the virtual world. The Movie Map is one of the earliest examples of virtual reality software. Another area of research related to virtual worlds is the field of navigation. VTLs use disk storage for storing data written to virtual tapes. It will then take responsibility for routing packets sent to the virtual gateway's MAC address. CrossFit makes use of a virtual community Internet model. It challenges players to create the best dish from items in a virtual pantry. Since 2005, CAcert has run experiments on different methods of using TLS on virtual servers. Communication within the virtual router takes place periodically. Two additional states are available for processes in systems that support virtual memory. It is now available through the Wii's Virtual Console service. It introduced a 4K video player capable of running 360-degree videos for virtual reality.