Casio IT-2000W manual Types of Disk, RAM Disk, Basic Drive

2.3.4 Disk

Types of Disk

Type	Drive name	Capacity
RAM disk	A	0 to 1920 Kbytes
Basic drive	C	768 Kbytes
F-ROM disk	D	0, 4, 8, 12, 16 or 24 Mbytes
PC card	G or F	SRAM card, ATA card

Note:

The drive name of the PC card varies for each model. For more information refer to Chapter 2.1.3 “Drive Configuration”.

RAM Disk

Part of the main RAM can be assigned on the RAM disk using System Menu.

The contents of the RAM disk will not be erased if the power switch is turned on and off, since they are backed-up by the main battery and the sub-batteries. The contents of the RAM disk are not affected by pressing the RESET switch either. Since this RAM disk permits the use of INT13h, it can be used as the built-in fixed disk. Its drive name is A.

Note:

Since the RAM disk shares part of the main memory installed in the main unit, a large-RAM disk size may affect the operation of application programs.

Basic Drive

Part of the DINOR FLASH ROM is used as the basic drive. It cannot be written to. Disk capacity : 768 KB

Since the basic drive supports the INT13h (Read Only) interrupt, it can be used as the built-in fixed drive. Its drive name is C.

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