What is IMS Transaction Manager

In a previous article (What is an IMS Database), I discussed IMS databases. IMS is more than a database system. It is also a transaction manager. If you need to know what an online transaction is, please read my article on Types of Processing on the Mainframe: Batch and Online

Types of Mainframe Processing: Batch and Online

There are two types of mainframe processes:

1. Batch Processing
2. Online Transaction Processing