This lecture covered C# fundamentals including memory management, static vs non-static, properties, inheritance, and modifiers. It also discussed namespaces, assemblies, generics, collections, enumeration, abstract classes, interfaces, and polymorphism. The key topics were memory allocation on the stack vs heap, value types vs reference types, boxing and unboxing, inheritance and polymorphism, abstract classes vs interfaces, generics and collections, and enumerators. The assignment is to finish a database design and stored procedures based on a UML diagram.