SAP IDES , ECC

What is SAP IDES and System Requirement for installations?What is SAP IDES (Internet Demonstration and Evaluation System)?SAP IDES is a normal R/3 but with lots of DEMO data. The system that contains several sample companies typifying relevant business processes. It is simple to use and has a variety of master and transaction data, and is used for demos, online/classroom training, and