Following the popularity and longevity of the Nintendo Entertainment System, the system has seen many clone video game consoles. Such clones are colloquially called Famiclones, and are electronic hardware devices designed to replicate the workings of, and play games designed for, the NES and Famicom. Hundreds of unauthorized clones and unlicensed copies have been made available since the height of the NES popularity in the late 1980s. The technology employed in such clones has evolved over the years: while the earliest clones feature a printed circuit board containing custom or third party integrated circuits (ICs), more recent (post-1996) clones utilize single chip designs, with a custom ASIC which simulates the functionality of the original hardware, and often includes one or more on-board games. Most devices originate in Asian nations, especially China, Taiwan, India, Southeast Asia, and to a lesser extent, South Korea.