Dano (BeOS)

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BeOS R5.1d0 "Dano/EXP"
Company/ developer	Be Inc.
OS family	BeOS
Source model	Closed source
Kernel type	Hybrid kernel
License	Proprietary
Working state	Stopped

Dano0/EXP (aka R5.1d0 aka EXP aka Dano aka (incorrectly) Dan0) is the build codename and most commonly used name to refer to a leaked R5.1 prerelease of the BeOS operating system. Dano's build date is 15 November 2001, the day of Be Inc.'s closure. Dano features an improved network stack called BONE, initial support for 802.11b wireless networking, some 3D acceleration-capable graphics drivers, a redesigned graphical user interface, a replacement USB subsystem with USB mass storage support, and other improvements. Many of these features had been promised for BeOS R5 a year earlier and not delivered.

In a potential move towards releasing the system as open source software, many proprietary items had been removed: the MP3 encoder was replaced with LAME, and OpenSSL replaced the RSA Encryption Engine in the NetPositive web browser.

The ZETA operating system was initially based on the Dano codebase, though it has since evolved.

[edit] PowerPC support

This article or section may contain original research or unverified claims.
Please improve the article by adding references. See the talk page for details. (October 2007)

Although not commonly known, there exists a PowerPC build of the Dano codebase.^{[citation needed]} This version lacks BONE and the new 3D and media kits. The build does include the new kernel and the newer AppServer. In reality, the PowerPC version is probably based on Dano 5.04.^{[citation needed]}