PowerPC is a type of microprocessor architecture that was developed collaboratively by IBM, Motorola, and Apple in the early 1990s. It was designed for use in high-performance computing and embedded systems. PowerPC is characterized by its RISC (reduced instruction set computing) architecture and big-endian byte ordering. It was widely used in Apple computers from the late 1990s to the early 2000s and is still used in some embedded systems and gaming consoles today. Proficiency in PowerPC programming and development is a specialized skill set that requires specific knowledge and experience.