Overriding: same method but different class

Overloading : same method, but different properties

overriding: same method but different class(parent,child)

encapsulation: accessing instances of class. And we can make
software architecture prtoperties

SOLID

Single responsibility: should have one function

Open-closed: should be expandable without changing any code

Liskov Substitution: base class should substitute parent class

interface segregation: should define roles

Dependency inversion: high-level modules should not depend on low-ones but interface
UMA

Uniform memory access: unique memory access is used(slower than)

NUMA

non-uniform memory access: all computer have own memory access faster