The Lys-16 microcomputer was designed and built during the 1970s by members of Lysator in close cooperation with one of the departments at the university (ISY). The computer's 16-bit word size made it advanced for its time.
Until somebody decides to write a better presentation here, you have to rely on Mikael Pääbo's article in GARB (in Swedish), the Lys-16 notices in the