The formatting problem is with the forum software. The easy workaround is to go into the advanced editor and set a fixed font like courier new. I'm sure there are also ways to mess with html.
Oh aman .. thanks a lot !!
Granule - Oracle FAQ : i think here also explained.
Later releases it is typically 4MB if your SGA is smaller than 1GB and 16MB if your SGA is bigger
Thanks & Regards
GTS ( ASIA PACIFIC)
My suggestion to you that instead of reading things from non-oracle sources, read Oracle documentation . It's free and 9/10 times, correct than external sources of information.