Rene BRUN (CERN) "Introduction to the ROOT System", tutorials . Tutorial files: ROOT User's Guide , Exercises (Word document) , Solutions (Word document) . 22 June (Saturday), . ... Session A . ... Introduction to the ROOT system . ... Introduction (1 hour), . Sessions A (2 hours), . ... In this session, one illustrates how to process chained ntuple files. ... In this session, we will play with the data generated by the ATLFAST simulation program and look at an event display. ...