↩ 🔵 🔵 🔵 ❪✺❫ Computer Concepts ○ ❪✺❫ Information Concepts ○ Data ⚪ ❪✺₁𝑖❫⁺ Classes of Data ○ ❪✺₁ᵢ❫ Data Classes ○ ❪✺_ᵢ❫ Data Subs ○ Data Reduction ○ Digital Data ○ Metadata ○ Optical Character Recognition (OCR) ○ Sorting ○