A special type of memory which cannot be changed and is permanently installed in the computer. It is programmed to tell the hardware of the computer how to operate. However, the format command may vary depending on the type of disks and drives along with the version of DOS that exists on the system. Storing Data on Permanent Media Since the memory of a computer is limited in size and can easily be erased, a more permanent place is needed to store information for later use. A disk is a place to store information on a more permanent basis when it is not needed in memory anymore.
Disks come in several different sizes, storage capacities and types.
There are also devices that allow you to store information on tape. If the following tips are followed to keep the hard drive organized and uncluttered, the hard drive space and efficiency will be maximized. One thing that will make working on a computer easier is using subdirectories. An application, such as Word97, will make its own subdirectory when installed. It is also advantageous to make separate directories for Word documents, and any other files that logically go together.