OpenCocon is smaller-footprint GNU/Linux distribution optimized for Thin-client purpose. It is useful to re-use old computer, because response speed is faster than standalone use.

Unique feature of OpenCocon:

• No desktop environment : All desktop environment from host computer
• No user save-able area
• Support some 90′ PCs (Windows 9x generation), and In particular, support the mania favorite PCs (Toshiba Libretto, Sony PCG-C1, …)
• Supports some Thin-client Protocols: XDMCP, RDP, VNC, SPICE, X2go

OpenCocon history begins research project, Damien400 from 2008. It tried minimum case of thin client environment and check compatibility. After a year, Changed base-distribution from Slackware to OpenEmbedded and released OpenCocon.