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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<title>
NetLogo User Manual: System Requirements
</title>
<link rel="stylesheet" href="netlogo.css" type="text/css">
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<h1>
System Requirements
</h1>
<div class="version">
NetLogo User Manual&nbsp;&nbsp;&nbsp;
</div>
<p>
NetLogo runs on almost any current computer.
<p>
If you have any trouble with NetLogo not working, see <a href=
"contact.html">Contacting Us</a>.
<h2>
Application Requirements
</h2>
<h3>
Windows
</h3>
<p>
NetLogo runs on Windows 7, Vista, 2000, and XP.
<p>
The NetLogo installer for Windows installs Java 6 for NetLogo's
private use only. Other programs on your computer are not affected.
<h3>
Mac OS X
</h3>
<p>
Mac OS X 10.6 or newer is required. (NetLogo 5.0 was the last version
to support 10.5 and 10.4.)
<p>
We recommend you use Software Update to ensure that you have the
latest Java.
<h3>
Other platforms
</h3>
<p>
NetLogo should work on any platform on which Java 6 or later is
installed. (If you have any
trouble, try using the official Java from Oracle, not some alternate.
GNU libgcj does not work. Very recent versions of OpenJDK,
1.6.0.0-22.b22 or newer, may work; older ones don't.)
<p>
Start NetLogo by running the provided <code>netlogo.sh</code> script.
Double-clicking NetLogo.jar may appear to work but is not
recommended.
<h2>
<a name="applet" id="applet">Applet Requirements</a>
</h2>
<p>
NetLogo models saved as Java applets should work in any web browser
where Java 6 (or later) is installed.
<p>
If you are using Firefox 4 on Mac OS X 10.6 or earlier and NetLogo
applets don't work, try updating Java through Software Update,
and if that doesn't help, try a different browser such as Safari.
(There are two different Java applet browser plugins Mac OS X, known
as &quot;plugin1&quot; and &quot;plugin2&quot;. Safari uses plugin1
by default, Firefox 4 uses plugin2. plugin1 works with NetLogo,
plugin2 doesn't. Plugin1 is considered legacy; Oracle and Apple
are now only improving plugin2. As of Mac OS X 10.7, only plugin2 is
available.)
<h2>
<a name="threed" id="threed">3D Requirements</a>
</h2>
<p>
Occasionally an older, less powerful system is not able to use the 3D
view or NetLogo 3D. Try it and see.
<p>
Some systems can use 3D but can't switch to full-screen mode. It
depends on the graphics card or controller. (For example, the ATI
Radeon IGP 345 and Intel 82845 probably will not work.)
<h2>
<a name="jre" id="jre">Java Notes for Windows Users</a>
</h2>
<!-- this needs to be kept in sync with dist/index.html and dist/windows.html -->
<p>
Most Windows users should choose the standard NetLogo download, which
includes a bundled Java 6 which is for NetLogo's private use
only; other programs on your computer are not affected.
<p>
There are two reasons you might want to use the alternate download,
without bundled Java:
<ol>
<li>You want a smaller download so it arrives faster and uses up less
space on your hard drive.
<li>For specific technical reasons of your own, you want to run
NetLogo using a different Java than the one we bundle.
</ol>
<p>
If you think the alternate download might be appropriate for you,
please read on.
<p>
Even if you already have Java installed on your computer, using that
Java may make NetLogo run slowly.
<p>
For maximum performance, NetLogo uses a special option called the
&quot;server&quot; VM. The default Java Runtime Environment (JRE)
installer from Oracle does not install this option. It is only
included in Oracle's Java Development Kit (JDK).
<p>
If you are not a Java developer, then you probably have the JRE, not
the JDK, and if you use it with NetLogo, models may run somewhat
slower.
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