↩ 🔵 🔵 🔵 ❪✺ᵢ₍₀₎❫ File Corridors ○ ❪✺ᵢ₍₀₎❫ Operating System Corridors ○ ❪✺₁ᵢ❫ File System Classes ○ ❪✺₄ᵢ❫ File System Sets ○