Operating Systems
- 101
 - The UNIX System
 - A webpage by The Open Group that holds the UNIX trademark and manages UNIX licensing program.
 
- 102
 - Domainatrix
 - Assembly language OS for x86 architecture, hot-swappable kernel, made to serve the Web, written originally for programmer's personal interest and education after moving to the PC platform from his old 8-bit machine. Philosophically similar to V2 OS.
 
- 103
 - PM_SZ_OS
 - Protected mode, 32-bit OS for i486 CPUs and up, full network stack, supports several filesystems, paging, deferred procedure call support, and virtual multiple screens with different resolution and scrollback. Free download.
 
- 104
 - RDOS
 - Multi-process/threaded protected mode OS for all i386+ systems, written in all 16-/32-bit Assembly in TASM, fully PROMable so can port to embedded systems with no keyboard and/or screen, stable and secure via segment protection and paging. [Open Source, GPL]
 
- 105
 - ScottsNewOS
 - Runs on i386+ compatible, working GUI even on 4 MB. Coded in Assembly, C. Brief description, download link. [Open Source, GPL]
 
- 106
 - Synapse Operating Services
 - Protected mode, multitasking support, 32-bit; developed on x86-32, intended to run on x86-64 with some changes; DOS-like, but not fully compatible, use: to run ported DOS programs up to 512K. At SourceForge. [Open Source, BSD]
 
- 108
 - TriangleOS
 - 32-bit multitasking, multithreaded OS for x86 386+ CPUs, with GUI, FSs, applications, drivers, all in active development. Site has information, news, documents, screenshots, downloadable releases.
 
- 109
 - Visopsys
 - VISual OPerating SYStem: small, fast, home-brewed, open source OS kernel for x86. Includes project background, screenshots, source code and useful links for OS developers. [Open Source, GPL]
 
- 110
 - XAOS
 - Runs on i386+, 16-bit real mode, FAT12/16/32 (read-only, LFN support), coded in C++; downloads: binaries, source, utilities, game (tetris source); downloads. [Open Source]
 
- 111
 - ACCORDS Project
 - Automatic Configuration and Monitoring of Component-Based Distributed Systems. From Universities of São Paulo, and of Campinas, Brazil. Part of 2K effort.
 
- 113
 - Comp.Unix.Aix archive
 - Usenet newsgroup archive, searchable by author, subject, and keywords header lines.
 
- 115
 - ROOTVG.NET
 - AIX, pSeries and RS/6000 information portal, with forums, columns, security alerts, announcements from IBM and user groups, and direct links to commonly used IBM documentation.
 
- 116
 - Amoeba
 - Powerful free, open source, microkernel-based system that turns a collection of workstations or single-board computers into a transparent distributed system. Used in academia, industry, and government for many years. Runs on many platforms.
 
- 117
 - Android
 - Official site provides information for users, developers and partners. Includes press releases, videos, screenshots and downloads.
 
