The technical meaning of RGB is red, green, blue

The technical meaning of VR  is  virtual reality

The technical meaning of VRMMO is  virtual reality massive multiplayer online

The technical meaning of CPU  is  central processing unit

The technical meaning of LoS  is  line of sight

The technical meaning of FIVR is full immersion virtual reality

The technical meaning of MR  is  Mixed Reality

The technical meaning of FOV  is  field of view

The technical meaning of OHMD  is  optical head-mounted display

The technical meaning of FPS  is  frames per second