A microprocessor complex can also be referred to as a microcontroller unit or an embedded system. The term "system-on-chip" (SoC) is also used to describe a microprocessor complex that includes various components like memory, input/output interfaces, and peripherals on a single chip. Another term associated with microprocessor complexes is "system-level integration" (SLI), which implies the integration of multiple systems into a single device. The term "multi-core system" refers to a microprocessor complex with multiple processing units, while "ultra-low-power microcontrollers" refer to microprocessor complexes designed for low-power consumption in handheld devices, sensors, and other electronic devices. Overall, numerous terms exist as synonyms for a microprocessor complex, and their use depends on the specific features of the device.