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                                                        The Florida SunFlash
 Sun's Operating System Receives XPG3 Base Branding From X/Open
   
SunFLASH Vol 27 #10					          March 1991 
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MOUNTAIN VIEW, Calif. --March 11, l991-- Sun Microsystems today
announced that its UNIX(R) operating system, SunOS(TM), has received
X/Open's Portability Guide 3 (XPG3) BASE branding.  X/Open, the leading
international open systems organization in the computer industry, has
branded the SunOS/SVR4 Development and Test Platform, a suite of
products that enables software developers to create applications based
on UNIX System V Release 4 (SVR4).  SVR4 is the next-generation
operating system standard for UNIX.  BASE branding signifies 100
percent compliance with the foundation level of the XPG3 branding
specifications.  These specifications combine both formal and de facto
standards for open system interfaces.

The SunOS/SVR4 Development and Test Platform is part of Sun's migration
to SVR4.  The company's end user release of SVR4 will be available at
the end of the year and will also carry the XPG3 BASE brand.

XPG3 branding means that SunOS provides standard programming interfaces
that enable easy development of portable applications and encourage
application interoperability. "As a company long committed to
standards, we feel XPG3 BASE branding continues to demonstrate our
efforts to offer an open systems environment," said Cynthia Typaldos,
director of standards at Sun.

To earn the brand, the SunOS product passed a comprehensive set of
tests that determine compliance with major portions of the XPG3 BASE
specifications. Under the branding program, a special X/Open
trademarked symbol is licensed to companies whose computer operating
systems and/or components are tested and verified to meet the XPG3
specifications.

These are not the first Sun products to receive X/Open branding.  Last
June, Sun announced that nine of its essential system software
components and three significant products from third-party vendors had
also been given XPG3 brands.  Among the Sun products were the
OpenWindows(TM) application environment, several components of SunOS
4.1 and various Sun compilers.  Also certified were Structured Query
Language (SQL) database products for Sun systems from Informix, as well
as Ada compilers for Sun from Verdix and Telesoft.

X/Open is a nonprofit organization of vendors, independent software
vendors and end users worldwide that are working to promote an open
systems environment.  The goal of XPG3 compatibility is
interoperability among hardware and software.  As an active member of
X/Open, Sun strongly promotes the acceptance of these specifications
worldwide.

X/Open and the X symbol are trademarks of X/Open Company, Ltd., in the
United Kingdom and other countries.


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