A binary tree is a hierarchical data structure where each node can have at most two children, known as the left and right child. It is a general-purpose structure used for representing hierarchical data, expression parsing, and memory management. However, it does not impose any rules on how the nodes are arranged.

A binary search tree (BST) is a specialized type of binary tree with an ordering property: the left child of a node contains a value smaller than the parent, while the right child contains a value greater than the parent. This property makes searching, insertion, and deletion operations more efficient, often with a time complexity of O(log n) in balanced trees