GT_Intro_OS: purpose for the folder.
GT_Intro_OS: purpose for the folder.

yevheniyc/C,yevheniyc/Autodidact,yevheniyc/Autodidact,yevheniyc/Autodidact,yevheniyc/Autodidact,yevheniyc/Autodidact,yevheniyc/Autodidact,yevheniyc/Autodidact,yevheniyc/C,yevheniyc/Autodidact,yevheniyc/Autodidact