磁盘和光盘之间的区别

磁盘和光盘是提供长时间存储数据的方式的存储设备。两者都归类于辅助存储设备类别。

磁盘：
磁盘是一种使用磁化过程读取，写入，重写和访问数据的存储设备。磁盘由一组圆形盘制成。它覆盖有磁性涂层，并以磁道，斑点和扇区的形式存储数据。硬盘，zip磁盘和软盘是磁盘的常见示例。通过使用最简单的恒定角速度，每个磁道上存储的位数不会改变。

光碟
光盘是使用光存储技术来读取和写入数据的任何计算机磁盘。它是使用光(光)能的存储设备。它是一种计算机存储磁盘，可数字存储数据并使用激光束读取和写入数据。它使用的光学技术是将激光集中在旋转的圆盘上。

磁盘和光盘之间的区别：

S.NO.	MAGNETIC DISK	OPTICAL DISK
1	Media type used is Muiltiple fixed disk	Media type used is Single removable disk
2	Intermediate signal to noise ratio	Excellent signal to noise ratio
3	Sample rate is Low	Sample rate is High
4	Implementated where data is randomly accessed.	Implementated in streaming files.
5	Only one disk can be used at a time	Mass replication is possible
6	Tracks in the magnetic disk are generally circular	In optical disk the tracks are constructed spirally.
7	The data in the magnetic disk is randomly accessed.	In the optical disk, the data is sequentially accessed.
8	In the magnetic disk, only one disk is accessed at a time.	Optical disk allows mass replication