unit trees unit trees notes contents objectives introduction concept of tree binary tree types of binary tree properties of binary tree binary representation implementation of binary tree binary tree traversal order of traversal of binary tree procedure for inorder traversal summary keywords self assessment review questions further readings objectives after studying this unityou will be able todiscuss the concept of tree explain concept of binary tree know binary tree traversal introduction while dealing with many problems in computer scienceengineering and many other disciplinesit is needed to impose hierarchical structure on collection of data items for examplewe need to impose hierarchical structure on collection of data items while preparing organizational charts and genealogiesto represent the syntactic structure of source programs in compilers tree is data structure that is used to model such hierarchical structure on data itemshence the study of tree as one of the data structures is important this module discusses tree as data structure lovely professional university