Esoteric computer

Esoteric computer could be a computer that runs esoteric operating system on an esoteric processor?

Or maybe this could be called an esoteric computer?

Or maybe a quantum computer or something similarly strange qualifies?

If "A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming", then an Esoteric computer is a device that carries out its operations esoterically, or via esoteric programming.