magneto-optical disk

(hardware, storage)(MO) A plastic or glass disk coated with acompound (often TbFeCo) with special optical, magnetic andthermal properties. The disk is read by bouncing alow-intensity laser off the disk. Originally the laser wasinfrared, but frequencies up to blue may be possible givinghigher storage density. The polarisation of the reflectedlight depends on the polarity of the stored magnetic field.

To write, a higher intensity laser heats the coating up to itsCurie point, allowing its magnetisation to be altered in a waythat is retained when it has cooled.

Although optical, they appear as hard drives to the operating system and do not require a special filesystem (they can beformatted as FAT, HPFS, NTFS, etc.).

The initial 5.25" MO drives, introduced at the end of the1980s, were the size of a full-height 5.25" hard drive (likein IBM PC XT) and the disks looked like a CD-ROM enclosedin an old-style cartridge

In 2006, a 3.5" drive has the size of 1.44 megabytediskette drive with disks about the size of a regular 1.44MBfloppy disc but twice the thickness.

Storage FAQ.

单词	magneto-optical disk
释义	magneto-optical disk magneto-optical disk (hardware, storage)(MO) A plastic or glass disk coated with acompound (often TbFeCo) with special optical, magnetic andthermal properties. The disk is read by bouncing alow-intensity laser off the disk. Originally the laser wasinfrared, but frequencies up to blue may be possible givinghigher storage density. The polarisation of the reflectedlight depends on the polarity of the stored magnetic field. To write, a higher intensity laser heats the coating up to itsCurie point, allowing its magnetisation to be altered in a waythat is retained when it has cooled. Although optical, they appear as hard drives to the operating system and do not require a special filesystem (they can beformatted as FAT, HPFS, NTFS, etc.). The initial 5.25" MO drives, introduced at the end of the1980s, were the size of a full-height 5.25" hard drive (likein IBM PC XT) and the disks looked like a CD-ROM enclosedin an old-style cartridge In 2006, a 3.5" drive has the size of 1.44 megabytediskette drive with disks about the size of a regular 1.44MBfloppy disc but twice the thickness. Storage FAQ.
随便看	brfrs brfs brfss brft brfu brg brg1 brg1-associated factor 200 brg1-associated factor 250 brg1-associated factor 250a brg1-associated factor 250b brg1-associated factor 47 brg1-binding protein eld/osa1 brg1-binding protein held/osa1 brga brgb brgc brgd brgda3 brgds br. gen. brgf brghd brghs brgm