The PAX16 computer, is a computer that runs using the PAX processor, made by Areallycoolusername. The PAX processor uses an esolang called Romanesco as its native machine code. Esoteric computer in this page, is defined as a computer that uses unconventional methods of computation, using an Esoteric processor, and an Esoteric Operating System.
PAX16 uses a feature of Romanesco called "Fracturing" to perform computations. The language itself is an OISC that only has one instruction, jump. The computer uses an OS, called HopliteOS, which is a lightweight, fast, operating system. The PAX16 computer, with its OS and machine language, Romanesco, is currently still in development. Further documentation may be found in the computers Github repo.