___
--- Technology
計算機 keisanki computer 機 [machine]  Ref. 算 [calculate]
電気 denki electricity | electric light 気 [air]  Ref. 電 [electricity]
終了 shūryō termination   Ref. 終 [end]
→ 終了する shūryō suru to shut down Ref. 終 [end]
交流 kōryū alternative current   Ref. 流 [flow]
計算機 keisanki computer 計 [measure]  Ref. 機 [machine]
電算機 densanki computer   Ref. 機 [machine]
計算尺 keisanjaku slide rule   Ref. 尺 [measure]
電池 denchi (electric) battery 電 [electricity]  Ref. 池 [pond]
電話 denwa telephone | phone call 電 [electricity]  Ref. 話 [talk]
波長 hachō wavelength   Ref. 波 [wave]