From entry graphics processing unit in glossary Artificial Intelligence: humans at the heart of algorithms
A graphics processing unit (GPU) is a hardware chip designed to optimise graphics operations such as rendering images in gaming. GPUs apply parallel processing to multiple streams of data simultaneously and have proved useful in data-processing applications beyond graphics, notably in neural networks and other AI algorihms.
Also used in hcistats2e: Chap. 10: page 119; Chap. 12: page 143