Labels:booth | crt screen | hakham | newspaper | sky | windowpane OCR: SECTION c CHAPTER MAGNETIC DISK AND TAPE TECHNOLOGY What is magnetic disk and tape technology? Hard disk, floppy disk and tape storage technologies can be classified as magnetic stor- age which stores data by magnetizing microscopic particles on disk or tape surface The particles retain their magnetic orientation until that ori- entation changed thereby making disks and tapes fairly permanent but modifiable storage media A read-write head I mechanism in the disk drive can magnetize particles to write data, and sense the particles polarities to read data Figure 2-22 shows how computer stores data on magnetic media Disk surface FIGURE 2-22 Before data is stored particles on the surface of the disk are Read- write head scattered in random patterns. The disk drive's read -write head magnetizes ...
