SANTA CLARA, Calif. and SHANGHAI �� June 1, 2004 �� During its second quarterly Network Computer '04 launch today, Sun Microsystems, Inc. (Nasdaq: SUNW) announced the immediate availability of the Sun Java(TM) Enterprise System 2004Q2 and unveiled details of its per-citizen pricing model for federal, state and local governments of developing nations. Already available on the Solaris(TM) Operating System (OS) for SPARC(R) and x86 based systems, including Xeon and AMD Opteron-based systems, the latest release of the Java Enterprise System extends platform support to now include Linux. Sun plans to extend multiplatform support for the Java Enterprise System to Windows and HP-UX in upcoming releases.

"The Java Enterprise System radically reshapes the way software is architected, acquired and managed for enterprises, and we are continually extending the Java Enterprise System to new markets, new price points, new applications and new platforms. Today, we are doing the same for entire nations," said John Loiacono, executive vice president, Software at Sun. "With our new per citizen pricing model, governments of developing nations can now reallocate punitive software licensing fees to critical tasks such as healthcare and education. And the expanded platform support allows these nations to deliver network services to citizens and customers on the architecture of their choice."

The Java Enterprise System enables enterprises to replace costly, unpredictable middleware components with a high-performance software system available on a predictable release schedule and affordable subscription basis. As part of Sun's radically simplified customer pricing, US$100 per employee per year, the Java Enterprise System subscription includes delivery of new features, support and maintenance. New features in this release include:

• Support for Linux, expanding the range of operating system choice for Java Enterprise System customers and broadening the reach of open and secure network services.
• Inclusion of the Java System Application Server Enterprise Edition 7 2004Q2, providing a scalable and reliable Web services platform featuring failover functionality that boasts 5-nines of availability and dramatically improved scalability of more than 112 CPUs linear.
• Support for the Solaris OS on both SPARC and x86 based systems with
• Sun Cluster 3.1 4/04 software providing customers with fully integrated, high-availability solutions.
• The Java Enterprise System offers support for both the server and client implementations of the OASIS Web Services for Remote Portlets (WSRP) specification version 1.0, with the ability to both produce and consume conforming Web services. Using WSRP, the Java Enterprise System can now integrate remote applications and services �� whether Java or .NET �� in literally minutes vs. months. The Java Enterprise System implementation provides full featured and configurable capabilities for administering the WSRP services.
• The Sun Java System Portal Mobile Access, now a fully integrated component of the Java Enterprise System, provides a feature rich, yet easy-to-use, multi-channel gateway with support for thousands of devices, voice access, and integration with all portal services such as user authentication, single sign-on, and Secure Remote Access -- all out of the box.
• The Sun(SM) Enterprise Messaging Migration service, provides companies with comprehensive tools and consulting services to migrate users from Microsoft Exchange 5.5 and other messaging platforms to the Java Enterprise System, allowing them to realize 2:1 TCO advantage.
• Up to 80% faster access to messaging and collaboration services with a new extensible web-based client for the Java Enterprise System, providing users with anywhere, anytime access to e-mail, calendar and address book.

Since its inception, the Java Enterprise System's revolutionary simple pricing and licensing models have helped eradicate complexity from enterprise software procurement and management. Sun is continuing this business innovation by introducing a per-citizen pricing model in which federal, state and local governments of developing nations will receive a complete network service software system for a single annual price.

Sun's Model for Per Citizen Pricing for Developing Nations:

• Government entities such as countries, provinces, states and cities in less developed and least developed countries and regions can now take advantage of this special licensing offer for the Sun Java Enterprise System. Pricing ranges from USD $0.33 to $1.95 per citizen per year, and is determined based on two factors: the number of citizens in the respective government entity and the stage of development of the country as defined by the United Nations' Department of Economic and Social Affairs classification(http://www.un.org/esa/population/publications/wpp2002/wpp2002wc.htm). This is the first time a company has offered governments around the world a complete network infrastructure software system that assists their populations in bridging the technological divide.

Since its general availability in January 2004, the Java Enterprise System has seen global customer adoption across numerous industries and is serving more than 175,000 employees. In addition, there are more than 250 commercial ISV applications available for the Java Enterprise System. Recent OEM wins include companies such as Caveo Technology Group, Informatica Corporation, Steamroller Systems, Inc., Unicon, Polaris Software Lab Ltd., ecQuaria Technologies and Singapore Computer Systems, Ltd.

Availability

The Java Enterprise System 2004Q2 is available for download now and will be generally available directly through Sun and Sun iForce(SM) partners. Free evaluation for 90 days is available for the Java Enterprise System or any of its component products. Sun also offers a no-hassle automatic term renewal each year based on the then current number of employees. Customers and partners wishing to learn more or download the Java Enterprise System can visit: http://www.sun.com/partners/javaenterprisesystem

Tune-in to the NC04Q2 web event at www.sun.com/nc26. Go to www.sun.com/sncasia2004 for up-to-the-minute information live from the SunNetwork Conference in Shanghai.

About Sun Microsystems, Inc.

Since its inception in 1982, a singular vision -- "The Network Is The Computer" -- has propelled Sun Microsystems, Inc. (Nasdaq: SUNW) to its position as a leading provider of industrial-strength hardware, software and services that make the Net work. Sun can be found in more than 100 countries and on the World Wide Web at http://sun.com

Sun, Sun Microsystems, the Sun logo, Java, Solaris, iForce and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the United States and other countries. Products bearing SPARC trademarks are based upon an architecture developed by Sun Microsystems, Inc.