Definition - What does Magnetic Disk mean? A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots and sectors. Hard disks, zip disks and floppy disks are common examples of magnetic disks.
The Lowell Female Labor Reform Association (LFLRA) was one of the first American labor organizations organized by and for women. The Lowell Female Labor Reform Association was founded in 1844 by the  mill girls  of Lowell, Massachusetts. Sarah Bagley was the first president of the LFLRA.
For more information on the Women's Trade Union League, visit the following web site: Encyclopedia Britannica, Women in American History: The Women's Trade Union League Founded in 1903 by Jane Addams, Mary Anderson and other trade unionists, the  (WTUL) devoted itself to securing better occupational conditions for women and encouraging women to join the labor movement.