[2] Video game consoles may use one or more data storage devices, such as hard disk drives, optical discs, and memory cards for downloaded content.
[9][10] Virtual reality headsets are head-mounted devices with built-in screens that are positioned in front of the user’s eyes.
VR headsets intended to play virtual reality games may have handheld controllers and position-tracking accelerometers for user input.
[14][15] Video game consoles in general are also described as "dedicated" in distinction from the more versatile personal computer and other consumer electronics.
[16][17][18] The following table contains video game consoles that have sold at least 1 million units worldwide either through to consumers or inside retail channels.