磁盘是由金属或塑料制成的磁盘,用于存储数据。通常,光盘的两面都用于存储数据。磁盘分类为:
1.硬盘:
硬盘是由铝制成的磁盘。它用作计算机上的主存储设备。它使用被称为盘片的金属盘。磁盘的两侧均用于存储数据,但最上面的磁盘的上侧和最下面的磁盘的下侧除外。磁性氧化物用于覆盖数据存储表面。
2.软盘:
软盘是包含单个塑料磁盘的磁盘。在计算机发明的最初阶段,它被用作主存储设备,后来被用于将数据从一台计算机传输到另一台计算机,但是如今,它几乎没有被使用。该操作需要软盘驱动器。
硬盘和软盘之间的区别:
HARD DISK | FLOPPY DISK |
---|---|
It is magnetic disk made of aluminium. | It is magnetic disk made of plastic. |
It is used as main storage device of computer. | Initially it was used as main storage device but now-a-days it is not used. |
It uses 2-4 metallic disk called platter. | It contains single plastic disk. |
Data storing surface is coated by magnetic oxide. | Data storing surface is exposed. |
It is reliable. | It is not as reliable as hard disk. |
Storage capacity is very high. | Storage capacity is low. |
Stores data at high speed. | Stores data at low speed. |
Retrieves data at high speed. | Data access relatively slow. |
Data can not be damaged or corrupted. | Data cane be damaged or corrupted. |
It is not portable easily. | It is easily portable. |
Weight is heavier than floppy disk. | It has lighter weight. |
It is very costly compared to floppy disk. | It is quite cheap. |
Security from viruses is better. | Susceptible to viruses. |
It is widely used now-a-days. | It is very less used almost not used. |