Microprocessor chip, data center, and computing system

PURPOSE: A microprocessor chip, a data center, and a computing system are provided to configure a simple optical network, thereby improving a response speed, i.e., latency, and complexity compared to a wired network method. CONSTITUTION: A microprocessor chip includes a plurality of processors (110,120); at least one first optical input/output unit (130) configured to receive optical signals from an external device and transmit optical signals to the external device; and an optical system bus (140) that is connected between the plurality of processors and the at least one first optical input/output unit. The optical system bus includes an internal bus that is used to connect between the plurality of processors or connect the plurality of processors and a register. The optical system bus includes multi-channel optical waveguides. [Reference numerals] (110) First calculation device; (120) Second calculation device; (133) First optical connector; (135) First optical switch; (150) First optical bus mediating device; (AA) External device