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.
By 1840, the factories in Lowell employed at some estimates more than 8,000 textile workers, commonly known as mill girls or factory girls. These operativesâso-called because they operated the looms and other machineryâwere primarily women and children from farming backgrounds.