Overview: Multi-function NES game cartridges aren't exactly a new concept. In the late 80s, for example, Nintendo released the Action Set bundle in North America which included Super Mario Bros. and Duck Hunt on a single cartridge. Two games on a single cart felt like magic at the time, but what if you could play your entire NES library on a single cart (without ROMs)? That's exactly what one YouTuber recently set out to accomplish.
In context: It used to be that only computers needed operating systems. However, times have changed, and now it seems like just about every electronic device we own needs one. Video game consoles, in particular, need middleman software to handle user input and manage files, but that wasn't the case in the days of cartridge games.