↩ 🔵 🔵 🔵 ❪✺₍₀₎❫ Computer Corridors ○ ❪✺❫ Information Concepts ○ Data ⚪ ❪✺₁ᵢ❫ Data Classes ○ ❪✺_ᵢ❫ Data Subs ○ Data Compression ○ Data Recovery ○ Data Reduction ○ Digital Data ○ Metadata ○ Sorting ○