A program that controls the transfer of data to and from a hard or floppy disk. Frequently combined with the main operating system.

一种控制计算机与磁盘或软盘之间数据传送的程序，通常与主操作系统结合在一起。

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Disk operating system (DOS) is a program that controls the transfer of data to and from a hard or floppy disk, frequently combined with the main operating system.

磁盘操作系统是一种控制计算机与磁盘或软盘之间数据相互传送的程序。通常与主操作系统结合在一起。

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Disk operating system (DOS) is a program that controls the transfer of data to and from a hard or floppy disk, frequently combined with the main operating system.

磁盘操作系统是一种控制计算机与磁盘或软盘之间数据相互传送的程序。通常与主操作系统结合在一起。

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