The picture of military operations on february 11, 1944The picture of military operations on February 11, 1944
The logo of the ios operating system. the number 7 on a green backgroundThe logo of the iOS operating system. The number 7 on a green background
Colored squares logo of the computer operating systemColored squares logo of the computer operating system
Night operation on may 17, 1943 at the dam art drawingNight operation on May 17, 1943 at the dam art drawing