Main Page | See live article | Alphabetical index Operating system advocacy is one of the primary pastimes of those who have a deep and abiding interest in the design, construction and usage of computer operating systems. For these people, the investment necessary -- both in money and time -- to own and operate a computer sometimes creates an emotional investment in the operating system of choice. Such advocacy can induce arguments as people compare and contrast the virtues and faults of different operating systems. These visceral debates most notably include: Windows vs. Mac OS Windows vs. Linux Linux vs. BSD Linux and BSD vs. proprietary UNIX systems. terminology: "Linux" vs. "GNU/Linux" Some wars of the past related to VMS vs. UNIX systems. There are related wars over programming languages and text editors (emacs vs vi; see Editor war). Here are some of the arguments, false or otherwise, which advocates of supposedly opposing operating systems may use. Table of contents 1 Desktop Systems 1.1 Microsoft Windows 1.1.1 Pro 1.1.2 Con 1.2 Apple Mac OS X 1.2.3 Pro 1.2.4 Con 1.3 Linux 1.3.5 Pro 1.3.6 Con 2 Server Systems 2.4 Microsoft Windows 2.4.7 Pro 2.4.8 Con 2.5 Linux 2.5.9 Pro 2.5.10 Con 2.6 Solaris Operating Environment by Sun Microsystems 2.6.11 Pro 2.6.12 Con 2.7 FreeBSD 2.7.13 Pro 2.7.14 Con 2.8 NetBSD 2.8.15 Pro 2.8.16 Con 2.9 OpenBSD 2.9.17 Pro 2.9.18 Con 2.10 Mac OS/OS X Server 2.10.19 Pro 2.10.20 Con Desktop Systems Microsoft Windows Estimated market share: 90%; Microsoft Windows enjoys a near monopoly in the desktop OS market Audience: all markets. Most dominant in business, though it has the lion's share of the market in all sectors. Pro large market share incredible range of compatible software and hardware most software makes use of a fairly consistent user interface, easing the process of getting up to speed with a new program primary applications - Outlook, Explorer, Office - from same source as OS ensures compatibility support Con complex code (registry, "features") Microsoft's business practices (anticompetitive, privacy-invading) feature limitations high cost chilling corporate monotony primary applications from Microsoft discourage third-party alternatives frequently targeted by malicious crackers, worms and viruses Apple Mac OS X Estimated market share: 5-10% Audience: education (30-50%), arts (graphic design, video/film editing, sound editing), science. Pro productive and intuitive easy to use and learn simplicity reliability underlying BSD-based operating system provides many of the benefits of UNIX or Linux, including command line utilities and the ability to run many UNIX programs Many Unix tools and applications (such as mySQL) are being or have been ported to run under OS X "iApps" - iTunes, iPhoto, iMovie, iDVD, GarageBand, etc. - high quality applications included with OS flexibility in dealing with various workloads emotional appeal lower support cost increasing compatibility with Windows and Linux frequently has the newest technologies (802.11, FireWire, USB) first responsive, supportive user community total cost of ownership is low aesthetic design (both hardware and software) very understandable, integrated system "single-source" OS, cpu, and major apps ensures better compatibility rarely targeted by malicious hackers, worms and viruses rapid, reliable response from Apple with security software patches. rapid application development, bundled integrated development environment Con relatively small market-share compared to Microsoft Windows hardware architecture (only runs on Apple's proprietary hardware) fewer programs or hardware devices higher initial costs slower computers until recently (see G5) iApps discourage third party development of core applications sometimes not taken seriously in a Windows crowd Linux Estimated market share: 2-5% Audience: information technology, computer science, software engineers, educators, cost-saving measure used by companies and governments. Pro low cost (free on most distributions) high flexibility and freedom low cost to change to open source results in good design much support lovable hobbyist atmosphere large community With desktop managers such as KDE and GNOME, Linux offers a graphical user interface more like the MacOS/Windows interface, in addition to the traditional Unix command line. Many Free or otherwise gratis software packages offer the functionality of programs available on the other desktop operating systems. almost never targeted by worms and viruses; GNU/Linux is a Free Software operating system, which gives you the freedom to access, modify and redistribute the source code of any part of it. Con missing features lack of formal support in free versions supposedly has hidden costs supposed difficulty of migration small market-share lack of closed-source applications (this can also be seen as a pro) desktop managers widely seen as too geek-oriented and not user-oriented; supposedly difficult to use compared with commercial GUIs. many essential tools lack consistency in syntax or semantics, undermining ease of learning (learning to use a new tool can become a "research project") some powerful tools (e.g. the shell) are unnecessarily complicated initial setup process varies greatly among distributions incomplete hardware support (USB, Firewire, "Winmodems", some video cards etc.) Linux drivers are often neglected by hardware manufacturers, adoption of newest technologies is relatively slower than proprietary systems. lack of significant multilingual features. In languages other than English, Linux market size is significantly smaller. no standard GUI (although this too can be seen as an advantage) Some people think Linux and Unix are targeted by hackers from information on the Internet, but when a Linux or Unix user refers to hacking, they often are talking about editing a program. These people usually refer to malicious hackers as crackerss. Server Systems Microsoft Windows Pro ease of configuration corporate management personnel tend to be more comfortable with it ("nobody ever got fired for buying Microsoft") Con expensive software licenses difficult to move configuration from one machine to another: nearly all configuration is done through a GUI often making it difficult to do repetitive changes to multiple machines. frequently exploited by malicious hackers, worms and viruses stability often problematic (low uptime) low performance need recent, expensive hardware to be able to run recent versions low security and slow fixes Linux Pro actual cost in currency can be low freedom (open source) stability diverse hardware support Due to being open source and other factors, Linux is the most rapidly-progressing operating system in existence It supports more hardware platforms than any other operating system (except perhaps NetBSD) For a moderately skilled administator, ease of installation, management, and support are other advantages Its support of almost every file system in use makes it especially good for mixed-platform environments Finally, the negligible cost of acquisition combined with undemanding hardware requirements result in a very low total cost of ownership (TCO) Most configuration is done by editing text files greatly contributing the ease of automated maintenance or large scale repetitive changes GNU/Linux is a Free Software operating system, which gives you the freedom to access, modify and redistribute the source code of any part of it. Con Most configuration is done by editing text files (often using a console-based editor if the X Window System / the default windows manager will not load) or using command-line utilities; Windows and Macintosh GUI users may find this cumbersome; system administration usually must be performed by someone who is familiar with these files and utilities (compared to Windows or Mac OSX where many server admin tasks may be "point-and-click"). (GUI admin utilities exist but are neither standardized nor commonly used.) While all command-line tools have some documentation in the form of online manual pages, these help documents are usually just technical references; the purchase of a well-written book on Linux system administration is almost always necessary Solaris Operating Environment by Sun Microsystems Pro Rock solid for enormous (enterprise in the jargon) workloads Long history of success Con high cost Expensive for small workloads because Solaris OE does not run nearly as well on PC hardware as it does on Sun hardware, which is expensive Support from Sun is expensive FreeBSD Pro no cost high degree of freedom much support design coherence long, proven history of reliability BSDs have a unified kernel and userland: the kernel and userland are specifically tested (and versioned) for each other. This, along with the coherent, no-surprise directory structure, gives an excellent sense of a well-designed system The ports tree makes for a very easy way to download new software: locating, configuring, compiling, recursive dependency handling are all taken care of Re-building system software is also exceedingly easy with the automated world-building tools Linux compatibility lets you run Linux binaries manufacturers didn't see fit to release as source or with a FreeBSD binary Excellent speed and stability Most configuration is done by editing text files, greatly contributing the ease of automated maintenance or large scale repetitive changes Great effort goes into documentation; the man pages are generally complete and helpful, and the FreeBSD Handbook is a good resource that is available for free Con Most configuration is done by editing text files (often using a console-based editor) or using command-line utilities; Windows and Macintosh GUI users may find this cumbersome; system administration usually must be performed by someone who is familiar with these files and utilities (compared to Windows or Mac OSX where many server admin tasks may be "point-and-click"). (GUI admin utilities exist but are neither standardized nor commonly used.) While all command-line tools have some documentation in the form of online manual pages, these help documents are usually just technical references NetBSD Pro no cost, high degree of freedom, etc Portability: NetBSD's slogan is "Of course it runs NetBSD!" While FreeBSD focuses exclusively on the i386 architecture and its successors, NetBSD has gradually increased the number of supported platforms It has a long, proven history of reliability Con NetBSD is widely ported, but finding a recent distribution for obscure architectures can be difficult Most configuration is done by editing text files (often using a console-based editor) or using command-line utilities; Windows and Macintosh GUI users may find this cumbersome; system administration usually must be performed by someone who is familiar with these files and utilities (compared to Windows or Mac OSX where many server admin tasks may be "point-and-click"). (GUI admin utilities exist but are neither standardized nor commonly used.) While all command-line tools have some documentation in the form of online manual pages, these help documents are usually just technical references; the purchase of a well-written book on BSD system administration is a necessity OpenBSD Pro OpenBSD is the most secure free Unix, using integrated cryptography and proactive security measures, including extensive security auditing It is free, and supports a variety of hardware platforms. It has a long, proven history of reliability Con Some users who run into problems dislike the personality of the system's maintainer, Theo de Raadt Some critics say that most of OpenBSD's security is just due to the fact that the operating system is installed with almost every daemon turned off by default; the minute you turn on various services, you are no less vulnerable than you were with other BSDs Mac OS/OS X Server Pro Like OSX, Mac OS X Server is based, in part, on BSD, but with a "friendlier" GUI The webserver is Apache The latest (Panther) mail server is Postfix Other UNIX-based server tools are available User management is based on NeXT's NetInfo but compatible with LDAP Con Command-line users may dislike the GUI management tools; though the command-line tools are available, it may be difficult to determine what actions GUI tools are taking Macintosh and Windows NT/2K/XP users may dislike having to occasionally edit configuration files by hand Mac OS X Server does not have as long a history of reliability like BSD and Linux Note that market share can refer to either new sales or to installed base, which give very different numbers. This kind of information should be spelled out by people with a comprehensive picture. Because Macintosh computers have a longer usage lifetime than Windows computers, their installed base is greater than their share of new sales. Also, market share numbers for market segments. For example, the market share for Linux in the server market is much higher than for the desktop market. One definition of the term "market share" refers to the dollar value of new sales. Because Linux is free software, many copies are freely redistributed outside the economic market. Since most desktop and notebook computers sold by the big OEM companies are sold with the "Windows Tax", this could increase the Windows market-share artificially since the user could very well use another OS instead. cost can mean either Total Cost of Ownership (TCO) or the actual amount of currency required to obtain the operating system, which is a more precise and less disputed definition. This article is from Wikipedia. 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