Media types

There are several types of file system media. For example,

• the ROM: this is always mapped to drive z:, and contains the operating system code

• the RAM: a RAM drive shares space with kernel and user program memory. This space is dynamically allocated: there is no need for the owner of the machine to pre-allocate space. The RAM drive is always mapped to drive c:.

• compact flash, accessed through an ATA interface: this is the main supported removable media. Whether there is a CF card slot, and what drive letters are allocated to it, are implementation dependent. A typical choice would be to use d: for the first partition on the first CF device.

Installable file systems may support other media.