PALO ALTO, Calif., July 7, 1993 -- Sun Microsystems Computer Corporation
(SMCC) and Intergraph Corporation announced today that they have signed a
development agreement that will accelerate delivery of future generations
of SPARC microprocessors. In addition, Intergraph will port Microsoft
Corporation's Windows NT operating system to future SPARC
microprocessors.

Under terms of the agreement, Intergraph's Advanced Processor Division
(APD), located here, will develop high-end 64-bit SPARC microprocessors
jointly with SMCC's SPARC Technology Business (STB). Intergraph and SMCC
both have the right to use these processors in their system level
products, while STB will make these components available to the open
market.

As part of the agreement, APD will assume responsibility for porting
Microsoft's Windows NT to Intergraph systems using future versions of
SPARC processors. The APD port will support the "little-endian" byte
ordering feature to be included in future SPARC implementations. This
means that Windows NT itself and Windows NT applications will transition
easily to the SPARC architecture. Solaris will continue to support
"big-endian" byte ordering, as defined in current and future versions of
the SPARC architecture, which to date runs more than 7500 hardware and
software solutions.

With the official release of Windows NT, Intergraph will offer its
technical applications on Windows NT-based systems incorporating Intel and
Clipper microprocessors. As a result of this agreement, Intergraph now
expects to offer SPARC-compatible Windows NT systems and  applications
during 1995. SPARC systems represented more than 52 percent of worldwide
reduced instruction set computer (RISC) workstation/server shipments in
1992, according to International Data Corporation, more than all
competitive RISC system marketshare combined.

"This agreement marks another milestone as the SPARC community broadens. We
are pleased to see industry-leading vendors like Intergraph adopt SPARC,"
said Scott McNealy, chairman and chief executive officer of Sun
Microsystems, Inc. "We're also pleased that APD's Windows NT porting
expertise will add another key software environment to SPARC. This
agreement means the three most popular operating systems -- Solaris from
SunSoft, NetWare from Novell, and now Windows NT from Microsoft -- will be
ported to SPARC, the powerful, high volume RISC standard."

Jim Meadlock, Intergraph's CEO, noted: "This represents the next logical
step in our relationship with Sun. We already have several of our major
UNIX applications running on SPARC, and we resell Sun workstations in
selected markets. By devoting APD resources to SPARC, we leverage our
expertise in high-end processor development. Porting Windows NT to SPARC
will benefit the entire SPARC and Windows NT communities, and expands our
own marketing options around the Windows NT standard. Windows NT's
source-language compatibility across different machine architectures lets
us sell our applications solutions on whatever hardware architectures best
address our customers' needs. This announcement reinforces Intergraph's
capability to provide interoperability between UNIX and Windows
environments. Our Clipper-based products, representing the midrange of our
product lines, will continue to be enhanced and supported for both UNIX
and Windows NT. The future SPARC-based Windows NT products are planned for
high-end workstations and compute-servers."

SPARC Technology Business (STB) is an organization within SMCC that makes
SMCC- developed SPARC processor and system product designs, operating
system-independent computers, and engineering services available to the
open market. Future chips from STB and APD will be part of the UltraSPARC
family on the SPARC Technology Roadmap recently unveiled by STB. The
roadmap details many current and future microprocessor designs,
demonstrating SPARC's unsurpassed scalability.

SMCC Background Information

Sun Microsystems Computer Corporation is the world's leading supplier of
open client/server computing solutions. An operating company of Sun
Microsystems, SMCC has its headquarters in Mountain View, Calif.

Intergraph Background Information

Intergraph Corporation, the world's largest producer of interactive
computer graphics systems, offers a broad range of complementary
workstations and network servers, as well as complete application-specific
systems for computer-aided design, engineering, manufacturing, and
publishing, plus numerous earth science applications. Intergraph has its
headquarters in Huntsville, Ala.; Intergraph's Advanced Processor Division
is located in Palo Alto, Calif.

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