6. Choose the best answer to the following definition

28.Task II. Read the text and complete it with suitable words.

Magnetic storage devices

Magnetic storage devices 16._____ _____ by magnetizing particles on a disk or tape.

A floppy disk is so called because it 17. ______ a flexible sheet of plastic, coated with iron oxide — a magnetizable material. A floppy disk drive spins at 360 revolutions per minute (rpm), so it's relatively slow. However, a hard drive18._____ over 7,200 rpm and stores data on a stack of metal rotating disks called platters.

This means you can store much more data and 19. ____ information much faster.

New disks need to be formatted before you can use them, unless they come preformatted from 20. ______ . When the disk is formatted, the operating system (OS) organizes the disk surface into circular tracks and divides each track into sectors. The OS creates a directory which will record the specific location of files.

8. 
   A) *store data B) is storing data C) stored data D) have stored data
   
9. 
   A) *consists of B) has C) is used D) stands for
   
10. 
    A) *spins at B) spine at C) spinning out D) spin for
    
11. 
    A)* retrieve B) retrieves C) retrieved D) have retrieved
    
12. 
    A)* the manufacturer B) the manufactured C) the manufacturing D) the manufactural