what means ms.position here c#

Question

try
{
using (Stream ms = new MemoryStream(6))
{

ms.WriteByte(9);
ms.WriteByte(11);
ms.WriteByte(6);
ms.WriteByte(8);
ms.WriteByte(3);
ms.WriteByte(7);

ms.Position = 0;

int rs = ms.ReadByte();

Console.WriteLine(rs);
rs = ms.ReadByte();

}

}
catch (IOException e)
{
Console.WriteLine(e.Message);
}

Answer 1

um does it mean to position the reader cursor to the beginning again?

Answer 2

yes