noun
processing unit; processor
Computing term for a hardware component that processes data, such as a CPU or GPU.
このコンピューターの処理装置は最新のものだ。
This computer's processing unit is the latest model.
プロセッサ is a more common loanword for 'processor', while 処理装置 is a native Japanese compound often used in technical specifications.
Compound of 処理 (processing) and 装置 (device, apparatus).