|computing another name for disk|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a gadget; dingus; thingumbob.|
A memory device, such as a floppy disk or a hard disk, that is covered with a magnetic coating. Digital information is stored on magnetic disks in the form of microscopically small, magnetized needles, each of which encodes a single bit of information by being polarized in one direction (representing 1) or the other (representing 0).