Job of SMON, PMON

What is the Job of  SMON, PMON processes?
SMON
1.Instance Recovery(Rolls forward changes in online redolog files, opens the database for user access    and rolls back uncommitted transactions)
2.Coalesce free space
3.Deallocates Temporary segments.
PMON(Cleans up after failed processes by:)
            1.Rolling back the transaction
            2.Releasing locks
            3.Releasing other resources
            4.Restarting dead dispatchers.
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