What is the difference between using Table with Dataset or without it ?

[mangore]

In this code I used Table directly without using DataSet. What is the difference between using Table with dataset or without it.

Dim sql As String = " Select  NameP from Table1 "
        Dim dp As New OleDbDataAdapter(sql, conn)
        Dim Table1 As New DataTable
        dp.Fill(Table1)
        Form1.DataGridView1.DataSource = Table1