Prefix or sub section.

Either prefixes or sub sections in computer hardware/software & Console gaming

[Linux] [Windows] [Mac]

And in gaming console section

[Xbox] [Xbox 360] [Xbox One]

[PlayStation] [PlayStation 2] [PlayStation 3] [PlayStation 4]

Made a Suggestion but I kept it gaming related: it was [PC] [Mac] [Xbox] [Playstation] [Nintendo].

I would keep the PC prefixes the same but for gaming it should be: [X. Original] [360] [One] [PS4] [PS3] [PS2]