This section lists operating systems (OSs) based on closed source code. Some such OSs have open source variants (BeOS, DOS, Unix, VMS), or straddle these two licensing models (QNX). Closed Source computer programs, including OSs, are those that include no source code, and for which the source code is kept secret, or made available only for a fee, as in many realtime OSs. Closed Source Operating Systems Software Computers.
Until the late 1960s computers—large and expensive mainframe computers, machines in specially air-conditioned computer rooms—were leased to customers rather than sold. (wikipedia)
- A/UX FAQ Index www
FAQ list is intended to cut down on the number of "often asked questions" that make the rounds here on comp. FAQ Index.unix.aux.
- A2-Web www
Listings of Apple II resources on the net, A2-Web, classified ads, and online ordering of certain products.
- Software Corona Software AB www
Software company located in Sweden, Software AB, creator of popular VS SPACE system for Wang VS minicomputers. Corona Software AB.
- Book. Server Administration with A/UX www
Server Administration with A/UX.
- Archive Bull AIX Freeware www
Archive of freeware and shareware for AIX (R) 4. Bull AIX Freeware.
- AIX, ROOTVG.NET www
AIX, ROOTVG.NET, 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. ROOTVG.NET.
- A Multi User System Security www
A low level security system for the Amiga, User System Security, consisting of a new filesystem and a library. It implements a security system similar to that of UNIX. Multi User System Security.
- Dedicated Workbench Nostalgia www
Dedicated to the preservation and restoration of the Amiga Workbench's history. Workbench Nostalgia.
- Amstrad Software for Amstrad CP/M www
Software for Amstrad CP/M.
- An FutureOS www
An alternative Operating System for the Amstrad computers CPC6128 and CPC464/6128plus, FutureOS, coded in Z80 Assembler. FutureOS.
- Source NuLib Home Page www
Source code, Home Page, binaries and documentation for NuLib, a program to manipulate the NuFX (ShrinkIt) file archives commonly used on the Apple II. NuLib Home Page.
- Growing BSD/OS www
- Statistics Internet Operating System Counter www
Statistics on Internet OS use, Operating System Counter, WWW, FTP, and News servers. Over 940,000 hosts checked in this 1999 survey. Internet Operating System Counter.
- Weblog OSNews: Exploring the Future of Computing www
Weblog style online magazine on operating systems and computing environments. Exploring the Future of Computing. Daily updates, reader forum with many comments. OSNews: Exploring the Future of Computing.
- Alexa: Closed Source Operating Systems
Alexa Directory Top Sites: Closed Source Operating Systems
- DMOZ: Closed Source Operating Systems
dmoz.org Directory: Closed Source Operating Systems