What Does Heterogeneous System Architecture (HSA) Mean?

Heterogeneous system architecture (HSA) is a particular processor architecture that combines a central processing unit (CPU) and a graphics processing unit (GPU) in order to speed up processes.

Techopedia Explains Heterogeneous System Architecture (HSA)

The HSA is overseen by the HSA Foundation, which includes enterprises such as ARM Holdings. ARM Holdings pioneered the ARM instruction set architecture, a reduced instruction set (RISC) architecture for efficient processing.