High performance computing (HPC), also called supercomputing, arose in the 1960s to support government and academic research. HPC began moving into major industries in the 1970s to accelerate the development of complex products (automotive, aerospace, oil and gas, financial services and pharmaceutical firms). In 2019, nearly half ($6.7 billion, or 49%) of $13.7 billion in worldwide HPC server system revenues came from the private sector. Spending on the whole HPC ecosystem (servers, storage, software and technical support) doubled the server system total ($27.9 billion).