↩ 🔵 🔵 🔵 ❪✺ᵢ❫ File Concepts ○ ❪✺₁₍₀₎❫ Computer Class Corridors ○ ❪✺₁𝑖❫⁺ Classes of File Systems ○ ❪✺₁𝑖❫⁺ Classes of Files ○ ❪✺₁ᵢ₍₀₎❫ File Class Corridors ○ File Format ○꠹ File System ○꠹ Filename ○꠹