The Sharp X68000 sits at a strange crossroads in retrocomputing: powerful enough that its software often assumed a mouse as standard equipment, yet old enough…
Stories
Cursor key mouse emulation on the Human68k platform
Building an Active-Terminated SCSI-to-SD Adapter for the X68000
Replacing a worn SCSI hard disk with solid-state storage is one of the most useful upgrades for a Sharp X68000. A SCSI-to-SD adapter can provide quiet, cool…
Crafting a Human68k Benchmark Tool for CPU and Memory Analysis
The Sharp X68000 occupies a special place in Japanese computing history, and a small but devoted community keeps the platform alive through restoration,…
Replacing the X68000 SRAM Battery Backup with a Modern FRAM Module
The Sharp X68000 shipped with a small lithium coin cell soldered directly onto its memory boards to keep configuration data and SRAM contents alive while the…
Restoring the X68000 CRT pots for focus, brightness, and geometry
Working on a thirty-five-year-old Sharp X68000 in a coastal Australian shed brings its own personality. Salt air drifts in from the harbour, summer storms roll…
Writing A Human68k Tool To Export VRAM Contents As Image Files
The Sharp X68000 remains unusually rewarding to document because its hardware sits between a home computer and a compact workstation. Its graphics system gives…
Building a Power Supply Shutdown Sequencer for the X68000
The Sharp X68000 arrived in an era when home computers were treated as serious instruments rather than disposable appliances. That ethos still shapes how…
Tuning the X68000 Audio Output Filters With a Spectrum Analyzer
The Sharp X68000 has always punched above its weight when it comes to audio, blending a custom Yamaha YM2151 sound chip with an OKI MSM6258V for sampled…
Building a Human68k Disk Formatter with Adjustable Interleave
The Sharp X68000 remains one of the most distinctive home computers ever made, and its Human68k operating system offers a remarkably direct interface to the…
Show off your Sharp X68000 with a custom transparent window mod
The Sharp X68000 remains one of the most distinctive personal computers ever sold in Japan, and its presence in Australian retro computing collections has…
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.