magnetic storage device
A compact disk (CD) is an optical storage device.
Harddrive is magnetic. Optical storage devices examples are CDs, DVDs etc. Source: IGCSE TCI student :)
Head – The device that reads and writes the information—magnetic or optical—on the disk surface.
A cassette deck is a device used to play and record cassette tapes.
optical memory: it is a memry device that uses laser beams ro store data . for e.g. CDROM. magnetic memory: it is a memory device that uses magnetic tape to store data . for e.g. hard disk optical memory are advanced and faster than magnetic memory device..
A conventional hard disk is magnetic.
A write head is the part of an electromechanical device which converts electrical signals into digital or analogue information stored on a magnetic or optical medium.
cassette
No, its not an optical storage device.
It is not an optical device. C D ROM or DVD are optical devices. Whereas a digital memory card is solid state device.
A bulk tape eraser is an electromagnetic device that manipulates the magnetic field around it in a particular manner. When a tape (cassette, reel to reel, or VHS) is subjected to the magnetic field, the information is lost because it is demagnetized.