DATA constant1 [,constant2]…
Stores one or more constants, of any type, for subsequent access via READ command.
DATA commands are non executable statements that supply a stream of data constants for use by READ commands. All the items supplied by all the DATA commands in a program make up one continuous "string" of information that is accessed in order by your program's READ commands.
RESTORE MyDataBlock FOR I=1 TO 3 READ v PRINT v NEXT END ... LABEL MyDataBlock DATA 1,2,3