Is this OEM?

Hi everyone,
I was reading the OEM is a tool which allows managing the database using GUI, in that case is TOAD package, which we use for normal day to day operations a OEM?

Which are the other OEM's available, any thing which can be downloaded from net free!!
Badrinath

OEM is Oracle product "Oracle Enterprize Manager". The reset of the products TOAD, SQL Navigator, EZSql are third party products...

You can also download it from Oracle site...Good tool