Personal Oracle 9i Login??

I installed oracle 9i personal edition on my computer at home and I have a question about logging into oracle from the DOS prompt. I know that svrmgrl is not around anymore and sqlplus internal isn't there. When I log into sqlplus /nolog it asks me for a user name and password. I want to be able to just look around as oracle. Not at any particular database. I want to create a database with a notepad file or start and stop the listener. How do I log in??? Thanks for you help.

If you have os_authentication i.e. member of ORA_DBA user group, you may log on with:

connect / as sysdba

or

connect sys a sysdba


Brgds,

Andy

Thanks for your help