Codex Gamicus:Hardware Index
Like the Game Index is designed to catalogue games that have existed, the Hardware Index is designed to catalogue gaming hardware. This will, of course, cover consoles, but will also cover peripherals and additions.
For the purposes of clarity, the manufacturer of the console is to be omitted from the article name (e.g. "Master System" instead of "SEGA Master System"), however, exceptions do exist, (Such as "Nintendo DS", etc).