↩ 🔵 🔵 🔵 ❪✺❫ Computer Concepts ○ ❪✺❫ Information Concepts ○ ❪✺ᵢ❫ Data Concepts ○ ❪✺₁𝑖❫⁺ Classes of Data ○ ❪𖣐₁❫ Data ○