Sun Microsystems Eliminates Development and Pricing Barriers with Sun Studio 11; Offers Latest Version Free to Developers

13 World Records on Sun Studio Software Demonstrates the Performance Levels Available for Development on Multi-Core and Multithreaded Systems

MENLO PARK, California - November 16, 2005 - Sun Microsystems (NASDAQ: SUNW) today announced its latest development tool, "Sun Studio 11, and eliminated pricing barriers by offering the product free of charge to all developers.

Integrated into a fully-featured IDE, the latest enhancements made to Sun Studio 11 software include an advanced graphical debugger and a suite of performance analysis tools that simplifies the development process for even the most sophisticated C, C++, and Fortran programming needs.

Through close collaboration with chip and systems designers, Sun Studio 11 compilers deliver the highest optimizations and the best performance for the development of scalable 32-bit and 64-bit applications on multi-core and multithreaded systems, including Sun’s newest UltraSPARC T1 processors with CoolThreads technology and x64 (x86, 64-bit) Sun Fire systems running on the Solaris 10 Operating System (OS).

This results in an increase of developer productivity while requiring less hardware, electricity, and footprint when deploying these demanding applications into production. Sun Studio software has contributed to 13 performance world records announced in 2005, with 5 recorded on this latest release.

“Sun is not only leading the market in delivering multi-core and multithreaded systems, but we are taking it one step further and delivering the software and development tools needed to optimize the performance of those systems,” said John Loiacono, executive vice president of Software, Sun Microsystems. “Sun Studio 11 is just the latest enhancement we have made to our software and developer offering. We are also including Sun’s complete developer toolset into the Java Enterprise System and the Solaris OS, enabling developers access to the highest performing, most productive suite of tools on the planet, without the burden of additional costs.”

Sun Studio 11 is available now, with the multilingual version to be delivered within the next 60 days. Please visit: http://developers.sun.com/sunstudio11.

Information on Sun Studio world record benchmarks can be found at: www.sun.com/software/products/studio/benchmarks.xml

About Java Enterprise System

The Java Enterprise System is an open, standards-based software system that delivers a core set of industry-leading shared enterprise network services as a single, integrated entity on a predictable release cycle. It serves as the strategic underpinning of Sun’s software strategy. For more information on the Java Enterprise System please visit: http://www.sun.com/software/javaenterprisesystem

About Sun Microsystems, Inc.

A singular vision -- “The Network Is The Computer” -- guides Sun in the development of technologies that power the world’s most important markets. Sun’s philosophy of sharing innovation and building communities is at the forefront of the next wave of computing: the Participation Age. Sun can be found in more than 100 countries and on the Web at http://sun.com.

Sun, Sun Microsystems, the Sun Logo, Java, Solaris, and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries.

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Carrie Kasten

Sun Microsystems, Inc.

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