JavaScript  -  Detect Computer Operating System

Option 1.   Save this script in the <head> of your html document

<script type="text/javascript">
var opSys1 = navigator.userAgent.toLowerCase ();
var osName1 = "";
if (opSys1.search ("sunos") > -1) osName1 = "Sun OS";
if (opSys1.search ("ppc mac os x") > -1) osName1 = "Macintosh PPP Mac OS X";
if (opSys1.search ("windows x86_64") > -1) osName1 = "Windows x86_64";
if (opSys1.search ("windows nt 6.2") > -1) osName1 = "Windows 8";
if (opSys1.search ("windows nt 6.1") > -1) osName1 = "Windows 7 / Windows Server 2008 R2";
if (opSys1.search ("windows nt 6.0") > -1) osName1 = "Windows Server 2008 / Windows Vista";
if (opSys1.search ("windows nt 5.2") > -1) osName1 = "Windows Home Server / Windows Server 2003 / Windows XP x64 Edition";
if (opSys1.search ("windows nt 5.1") > -1) osName1 = "Windows Fundamentals for Legacy PCs / Windows XP";
if (opSys1.search ("windows nt 5.01") > -1) osName1 = "Windows 2000 Service Pack 1";
if (opSys1.search ("windows nt 5.0") > -1) osName1 = "Windows 2000";
if (opSys1.search ("windows nt 4.0") > -1) osName1 = "Windows NT 4.0";
if (opSys1.search ("windows nt 3.51") > -1) osName1 = "Windows NT 3.51";
if (opSys1.search ("windows nt 3.5") > -1) osName1 = "Windows NT 3.5";
if (opSys1.search ("windows nt 3.1") > -1) osName1 = "Windows NT 3.1";
if (opSys1.search ("windows ce") > -1) osName1 = "Windows CE";
if (opSys1.search ("windows 98; win 9x 4.90") > -1) osName1 = "Windows ME Millenium Edition";
if (opSys1.search ("windows 98 se") > -1) osName1 = "Windows 98 SE";
if (opSys1.search ("windows 98") > -1) osName1 = "Windows 98";
if (opSys1.search ("windows 95") > -1) osName1 = "Windows 95";
if (opSys1.search ("windows 6.1") > -1) osName1 = "Windows 7 / Windows Server 2008 R2";
if (opSys1.search ("mac_powerpc") > -1) osName1 = "Mac PowerPC";
if (opSys1.search ("linux i686") > -1) osName1 = "Linux i686";
if (opSys1.search ("intel mac os x") > -1) osName1 = "Macintosh Intel Mac OS X";
</script>

and use this script in the <body>

<script type="text/javascript">
<!--
document.write(""+osName1+"");
//-->
</script>

Computer Operating System - Displays:

 

Option 2.   Save this script in your js folder

Save the following script as opsystem.js

<!--
var opSys2 = navigator.userAgent.toLowerCase ();
var osName2 = "";
if (opSys2.search ("sunos") > -1) osName2 = "Sun OS";
if (opSys2.search ("ppc mac os x") > -1) osName2 = "Macintosh PPP Mac OS X";
if (opSys2.search ("windows x86_64") > -1) osName2 = "Windows x86_64";
if (opSys2.search ("windows nt 6.2") > -1) osName2 = "Windows 8";
if (opSys2.search ("windows nt 6.1") > -1) osName2 = "Windows 7 / Windows Server 2008 R2";
if (opSys2.search ("windows nt 6.0") > -1) osName2 = "Windows Server 2008 / Windows Vista";
if (opSys2.search ("windows nt 5.2") > -1) osName2 = "Windows Home Server / Windows Server 2003 / Windows XP x64 Edition";
if (opSys2.search ("windows nt 5.1") > -1) osName2 = "Windows Fundamentals for Legacy PCs / Windows XP";
if (opSys2.search ("windows nt 5.01") > -1) osName2 = "Windows 2000 Service Pack 1";
if (opSys2.search ("windows nt 5.0") > -1) osName2 = "Windows 2000";
if (opSys2.search ("windows nt 4.0") > -1) osName2 = "Windows NT 4.0";
if (opSys2.search ("windows nt 3.51") > -1) osName2 = "Windows NT 3.51";
if (opSys2.search ("windows nt 3.5") > -1) osName2 = "Windows NT 3.5";
if (opSys2.search ("windows nt 3.1") > -1) osName2 = "Windows NT 3.1";
if (opSys2.search ("windows ce") > -1) osName2 = "Windows CE";
if (opSys2.search ("windows 98; win 9x 4.90") > -1) osName2 = "Windows ME Millenium Edition";
if (opSys2.search ("windows 98 se") > -1) osName2 = "Windows 98 SE";
if (opSys2.search ("windows 98") > -1) osName2 = "Windows 98";
if (opSys2.search ("windows 95") > -1) osName2 = "Windows 95";
if (opSys2.search ("windows 6.1") > -1) osName2 = "Windows 7 / Windows Server 2008 R2";
if (opSys2.search ("mac_powerpc") > -1) osName2 = "Mac PowerPC";
if (opSys2.search ("linux i686") > -1) osName2 = "Linux i686";
if (opSys2.search ("intel mac os x") > -1) osName2 = "Macintosh Intel Mac OS X";
document.write(""+osName2+"");
//-->

and refer to it in the <body> of your html document

<script src="/js/opsystem.js" type="text/javascript"></script>

Computer Operating System - Displays:

 

Option 3.   Embed this script in the <body> of your html document

<script type="text/javascript">
<!--
var opSys3 = navigator.userAgent.toLowerCase ();
var osName3 = "";
if (opSys3.search ("sunos") > -1) osName3 = "Sun OS";
if (opSys3.search ("ppc mac os x") > -1) osName3 = "Macintosh PPP Mac OS X";
if (opSys3.search ("windows x86_64") > -1) osName3 = "Windows x86_64";
if (opSys3.search ("windows nt 6.2") > -1) osName3 = "Windows 8";
if (opSys3.search ("windows nt 6.1") > -1) osName3 = "Windows 7 / Windows Server 2008 R2";
if (opSys3.search ("windows nt 6.0") > -1) osName3 = "Windows Server 2008 / Windows Vista";
if (opSys3.search ("windows nt 5.2") > -1) osName3 = "Windows Home Server / Windows Server 2003 / Windows XP x64 Edition";
if (opSys3.search ("windows nt 5.1") > -1) osName3 = "Windows Fundamentals for Legacy PCs / Windows XP";
if (opSys3.search ("windows nt 5.01") > -1) osName3 = "Windows 2000 Service Pack 1";
if (opSys3.search ("windows nt 5.0") > -1) osName3 = "Windows 2000";
if (opSys3.search ("windows nt 4.0") > -1) osName3 = "Windows NT 4.0";
if (opSys3.search ("windows nt 3.51") > -1) osName3 = "Windows NT 3.51";
if (opSys3.search ("windows nt 3.5") > -1) osName3 = "Windows NT 3.5";
if (opSys3.search ("windows nt 3.1") > -1) osName3 = "Windows NT 3.1";
if (opSys3.search ("windows ce") > -1) osName3 = "Windows CE";
if (opSys3.search ("windows 98; win 9x 4.90") > -1) osName3 = "Windows ME Millenium Edition";
if (opSys3.search ("windows 98 se") > -1) osName3 = "Windows 98 SE";
if (opSys3.search ("windows 98") > -1) osName3 = "Windows 98";
if (opSys3.search ("windows 95") > -1) osName3 = "Windows 95";
if (opSys3.search ("windows 6.1") > -1) osName3 = "Windows 7 / Windows Server 2008 R2";
if (opSys3.search ("mac_powerpc") > -1) osName3 = "Mac PowerPC";
if (opSys3.search ("linux i686") > -1) osName3 = "Linux i686";
if (opSys3.search ("intel mac os x") > -1) osName3 = "Macintosh Intel Mac OS X";
document.write(""+osName3+"");
//-->
</script>

Computer Operating System - Displays:

 

An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer. A user cannot run an application program on the computer without an operating system, unless the application program is self booting. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting for cost allocation of processor time, mass storage, printing, and other resources. For hardware functions such as input and output, and memory allocation, the operating system acts as an intermediary between application programs and the computer hardware; although the application code is usually executed directly by the hardware and will frequently call the OS, or be interrupted by it. Operating systems are found on almost any device which contains a computer, from cellular phones and video game consoles, to web servers and super-computers.





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