"Ball", the Byzantine Askemos Language Layer, is an intrusion resistant and incorruptible, autonomous distributed operating system. It provides application programmers with continuations, messages, and rights management on top of a peer-to-peer network resisting byzantine failures of network nodes. The API significantly raises the level of abstraction in comparison with other operating systems: there are very few system calls, and these are expressed in XML. An alternative understanding of Askemos is that of an XML object database with stored procedures.
ASPLinux is an RPM-based general purpose Linux distribution. It features an intuitive GUI install with integrated partition resizer (supported types are ext2fs, fat16, fat32, and ntfs) and comprehensive packages set. The distribution provides full compatibility with RedHat 7.0 RPMs, and it is available in English, Russian, Korean, and Chinese languages.
BasicLinux is a mini-Linux distribution designed specifically for old PCs. It provides a slim 2.2.26 kernel, a user-friendly shell and a good assortment of utilities. It includes a Web browser, a comm program, an email client, a telnet client, wget, DHCP, and dial-up PPP. It also includes a small footprint GUI, and is able to run remote X (via network) with as little as 4 MB RAM. BasicLinux is particularly suitable for old laptops: it comes with PCMCIA capability and includes the MagicPoint presentation program.
eCos (Embedded Configurable OS) is an open source, configurable, portable, and royalty-free embedded Real Time Operating System. It is written in C++, provides all the usual OS things. You configure the OS so that the parts you don't need aren't loaded to the embedded system. eCos is released under a modified GPL that allows for its use in embedded systems without having to GPL the embedded application.
freeBIOS is designed to be a generic open source firmware for use in any PC-like system. Firmware initializes a computer and its peripherals, and then transfers control to the operating system. Firmware also provides various interfaces which operating systems may call to accomplish certain system-wide tasks like power management or PCI bus scanning.
Briefly, FreeBSD is a UNIX operating system based on U.C. Berkeley's 4.4BSD-lite release for the i386 platform (and recently the alpha platform). It is also based indirectly on William Jolitz's port of U.C. Berkeley's Net/2 to the i386, known as 386BSD, though very little of the 386BSD code remains. A fuller description of what FreeBSD is and how it can work for you may be found on the FreeBSD home page.