'CPU-focused' originates from the abbreviation 'CPU' for 'central processing unit' and the word 'focused,' where 'focus' meant 'to concentrate attention or effort.'

The term 'CPU' was adopted in the mid-20th century as computers became more prevalent, and 'focused' has been used in English since the 17th century.

Initially, 'focus' meant 'a point of convergence,' but over time it evolved into its current meaning of 'concentrating attention or effort.'