Last updated at: (Beijing Time) Monday, December 17, 2001
China Develops High-performance Storage Disk
A Chinese researcher has recently developed a computer disk with a storage capacity equal to 800 floppy disks.
The disk, named Only Disc, is said to have a storage speed up to 300 times faster than an ordinary floppy disk and may be erasedup to one million times.
A Chinese researcher has recently developed a computer disk with a storage capacity equal to 800 floppy disks.
300 times faster
The disk, named Only Disc, is said to have a storage speed up to 300 times faster than an ordinary floppy disk and may be erased up to one million times.
The product was developed by Lu Zhengbin, a researcher with a local hi-tech company in this capital of northeast China's Heilongjiang province.
To be widely used
Lu said the disk is for use outside the computer, ideal for mobile office use, remote education, data processing, mass media and multimedia data transmission.
Floppy Disk
A soft magnetic disk. It is called floppy because it flops if you wave it (at least, the 5?-inch variety does). Unlike most hard disks, floppy disks (often called floppies or diskettes) are portable, because you can remove them from a disk drive. Disk drives for floppy disks are called floppy drives. Floppy disks are slower to access than hard disks and have less storage capacity, but they are much less expensive. And most importantly, they are portable.
Floppies come in two basic sizes:
5¼-inch: The common size for PCs made before 1987. This type of floppy is generally capable of storing between 100K and 1.2MB (megabytes) of data. The most common sizes are 360K and 1.2MB.
3½-inch:: Floppy is something of a misnomer for these disks, as they are encased in a rigid envelope. Despite their small size, microfloppies have a larger storage capacity than their cousins -- from 400K to 1.4MB of data. The most common sizes for PCs are 720K (double-density) and 1.44MB (high-density).