Oracle Data Backup

[Santosh Varma]

Hello list,            I am using Oracle 8.1.6 I want to take Back-Up of Application Data at the end of the Day. Which is the best suitable option for backup? any directory (for eg: c:\oracle\ora81\rdbms) where from i can take it directly ? like in unix we have directory where all the tables/indexes are located and we need to give that path for backup and the tables/indexes/data are backed Up.   Ideas are welcome URGENTLY   Thanks and regards, Santosh