(out of order)
NDEV - The main development kit console for the Wii.
RVT - The product code for Wii development and testkit items. See RVL, Product Code
RVL - The Wii product code for retail items (See RVL Product Codes)
Product Code - The three-letter code that distinguishes a Nintendo product line.
Host I/O - The connection between a development system such as the NDEV and its host PC
CTR - The 3DS product code for retail items
DOL - The GCN product code for retail items
CAT-DEV - The primary Wii U development kit console.
Dev Tool - A term referring to Wii Remote prototypes.
Waikiki - A GameCube memory card slot debugger for the Wii, used during internal testing and factory initialization of each unit.
uid.sys - A file found on the NAND filesystem of every Wii console, containing a list of all inserted discs and installed titles.
Wii Startup Disc - A rare disc used to initialize early Wii consoles.
GameID/Game ID - The last 4 bytes of a Nintendo title's Title ID, used to represent it in an abbreviated form on some platforms