The words disk operating system refers to system software used in most computers that provides the abstraction and management of secondary storage devices and the information on them. For example, you have several files systems meant for organizing data files of all sorts. Such software is referred to as a disk operating system when the storage devices it manages are made of rotating platters such as hard disks or floppy disks.
In the early days of micro computing, memory space was often limited so the disk operating system was an extension of the operating system. This component was only loaded if it was needed. Otherwise, disk access would be limited to low-level operating such as reading and writing disks at the sector level.
In the early days of micro computing, memory space was often limited so the disk operating system was an extension of the operating system. This component was only loaded if it was needed. Otherwise, disk access would be limited to low-level operating such as reading and writing disks at the sector level.