_:vb7227070	<http://www.w3.org/1999/02/22-rdf-syntax-ns#value>	"(computing) A dedicated block usually at the beginning (first block on first track) of a storage medium that holds special data used to start a system. Some systems use a boot block of several physical sectors, while some use only one boot sector. Other manufacturers use the terms boot block and boot sector interchangeably."@en .