IMS Interview Question: Difference between IPL and INIT in IMS

In IMS, IPL stands for Initial Program Load, and INIT stands for Initialization Phase. The main difference between IPL and INIT in IMS is:

• IPL (Initial Program Load): IPL is the process of loading the operating system and its programs into the main memory from disk when the system is powered on or restarted. It is the first step in the system startup process.
• INIT (Initialization Phase): INIT is the phase in which system resources are initialized and prepared for use by the operating system and applications. It includes setting up necessary data structures, initializing hardware, and establishing communication channels.

Overall, IPL is the initial booting process that loads the basic components of the operating system, while INIT prepares the system for normal operation by initializing various resources and services.