演えん算ざん装そう置ち

え

ん

ざ

ん

そ

う

ち

Meanings

1

noun

arithmetic unit; arithmetic logic unit

computing

Computing term for the part of a CPU that performs arithmetic and logical operations. Often abbreviated as ALU.

制せい御ぎょ装そう置ち
制御装置 is the control unit of a CPU, which directs operations, while 演算装置 is the arithmetic unit that executes calculations.
中ちゅう央おう処しょ理り装そう置ち
中央処理装置 (CPU) is the entire central processing unit, which contains both the 演算装置 (arithmetic unit) and the 制御装置 (control unit).

Compound of 演算 (calculation) and 装置 (device, unit). A straightforward technical term.