The Ports tab displays a list of the current port service mappings, and lets you enable or disable UPnP port forwarding. To enable or disable UPnP port forwarding: Set UPnP port forwarding to ON to allow UPnP devices on your Fiber network to set their own port forwarding rules.
VRML (Virtual Reality Modeling Language) is a language for describing three-dimensional (3-D) image sequences and possible user interactions to go with them.
VRAM (video RAM) is a reference to any type of random access memory (RAM) used to store image data for a computer display. All types of VRAM are special arrangements of dynamic RAM (DRAM). VRAM is a buffer between the computer processor and the display, and is often called the frame buffer.