The Sharp X68000 remains an unusually capable platform for music, games, graphics, and experimentation. Its timing, sound hardware, and Japanese software…
Stories
Building a MIDI Interface for the X68000 with a Microcontroller
Restoring the X68000 joystick ports with new connectors
The Sharp X68000 is remembered for its sharp pixel graphics, powerful sound hardware, and arcade-oriented software, yet its original control interfaces deserve…
Understanding the X68000 Palette And 16-Bit Color
The Sharp X68000 is often described as a 16-bit color computer, but that phrase can refer to several different parts of its graphics system. It may describe…
Adding a CompactFlash Disk To An X68000
A CompactFlash card can make a practical second hard disk for an X68000. It produces less heat, draws less power, and avoids the mechanical wear associated…
Building a low-profile fan shroud for the X68000
The Sharp X68000 remains an unusually rewarding computer to maintain because its compact tower design combines custom hardware, tightly packed boards, and a…
Recapping the X68000 PSU for improved stability
The Sharp X68000 remains remarkably usable, but its power supply is now several decades old. Electrolytic capacitors inside the PSU gradually lose capacitance,…
Reverse Engineering the X68000 Keyboard Protocol
The Sharp X68000 keyboard is more than a collection of switches connected to a game-port-style plug. It is a dedicated peripheral with its own electronics,…
Adapting A Modern SCSI2SD Device For The X68000
The Sharp X68000 remains unusually rewarding to maintain because its hardware exposes so much of the system’s design. Its SCSI interface makes it possible to…
Building a Reliable X68000 Game Disk Image Catalog
The Sharp X68000 deserves a game archive that is as carefully documented as its hardware. Thousands of titles were released across floppy disks, hard disks,…
Repairing the X68000 monitor color purity rings
The Sharp X68000 is remembered for sharp pixel graphics, distinctive industrial design, and a display system that made its software feel remarkably immediate.…
Nereid-X Expansion Board
A personally-produced LAN+USB+Memory expansion board for Sharp X68000 series computers. Multiple production runs were offered, including a final batch and a later revival reproduction run.
Power Supply Repair
X68 power supply repair and modification services were offered by the site owner, with documentation shared through diary entries spanning 2001–2006.
Server & Networking
Notes on FreeBSD administration, ISP changes, server migration, and networking topics. The site itself ran on FreeBSD with the hns diary system and Namazu search integration.
Get in touch
X68K.NET connects Sharp X68000 enthusiasts through community links and shared projects. Reach out with questions about the Nereid project or X68 resources.