The ELX2000 real-time multitasking monitor is compatible with the  FC-98NX (FC-35D) FA PC from NEC. ELX2000 is developed based on ELX-286/PC98, so it supports the same protected mode as ELX-286. Also the system calls are fully compatible with ELX-286. You can use the applications written for ELX-286 by only changing the requests to the drivers for different hardware.



(Compatibility with ELX-286)

Utility	PC-9801 uses font ROM for displaying text, while FC-NX uses PC-DOS fonts. To allow the use the PC-DOS fonts in ELX-2000, the MAKEFONT utility generates a font file.
	LDR286, which is a loader of the ELX-286, is changed to RML386 in ELX-2000.
	The usage of other utilities is the same as ELX-286.
Compiler	Provides additional support for MS-C V6.0.
Development environment	Platforms where PC-DOS 2000 works.
System call	Fully compatible with ELX-286.
File access	The file access functions are same as ELX-286.
	Supports HDDs of up to 8 Gbytes.
	Supports secondary IDE channels.
PCI driver	Supports PCI devices.
	Uses BIOS for PCI configuration. PCI drivers report the configured information to each driver.
CRT ourput	The CRT output architecture of the PC-9801 Series is very different from that of the FC-NX Series, so the specifications of the text/keyboard driver and graphic driver are also different.
Resolution
	ELX-283/286	640 x 400 dots 16-color mode
		640 x 200 dots 16-color mode
	ELX 2000	640 x 480 dots
		256-color mode - 800 x 600 dots
		256-color mode - 1024 x 768 dots
		256-color mode - There is no text blinking attribute.
Screens	While ELX-286 has two screens each (front and back screens) for texts and graphics, ELX-2000 has one screen each for them.
	While the text window of ELX-286 allows two scroll areas (on the upper and lower sides), that of ELX-2000 allows only one scroll area.
Abolished unit screen	For graphic display, the unit screen concept of ELX-286 has been abolished. ELX-2000 features the original screen only.
Text character output	To output text characters, the MAKEFONT utility generates a font file. This allows use of user-specific fonts.
	To generate font files, PC-DOS fonts are usually used.