Few Things will happen when you join Company/ IT Firm:
1) You will have Orientation which includes details about company, its operations and many more thing like you want to avail transport, open a bank account etc.
2) You will get a UserName/Password for your system.
3) Meeting up with Team and Manager.
4) Making your Development Plan with manager, discussion on goals for year and required training's.
5) knowledge transition (KT), by team and manager on project and its role.
6) Reverse knowledge transition(KT) to team.