AT&T GLOBAL INFORMATION SOLUTIONS ANNOUNCES INDUSTRY'S BEST
PRICE/PERFORMANCE TPC-B BENCHMARK RESULT

-- AT&T Globalyst S40 PC server and Microsoft SQL Server 6.0 combine for
new world's record --

DAYTON, Ohio, June 19, 1995 - AT&T's computer unit announced a new world's
record for Transaction Processing Performance Council benchmark B (TPC-B)
using its Globalyst S40 PC server. These results set a new standard for
price/performance in a Microsoft Windows NT/SQL Server environment.

The AT&T Globalyst S40 PC server, using two 133MHz Intel Pentium processors
moving data across dual PCI buses, achieved 440.98 transactions per second
(tpsB) at a price/performance of $253.61/tpsB. This benchmark was
accomplished using Microsoft SQL Server 6.0 in a Windows NT Server 3.51
operating system.

The Globalyst S40 server, scalable up to four processors, is positioned as
the price/performance workhorse of AT&T's comprehensive line of
Intel-based PC servers.

The TPC Benchmark B, developed in 1992 by the Transaction Processing
Performance Council (TPC), is considered to be a leading workload
benchmark test for evaluating real-world application performance.

"These record TPC-B benchmark results further demonstrate AT&T's leadership
in offering PC server solutions with the best price/performance," said Rob
Howe, vice president, Worldwide PC Marketing, AT&T Global Information
Solutions. "These benchmarks also reflect the combined strengths of
Microsoft's client/server-oriented software and AT&T GIS' expertise in
enterprise-wide servers solutions."

Microsoft SQL Server 6.0 is a powerful multithreaded database server
designed to enhance the capabilities of both SMP and uniprocessor
architectures to deliver breakthrough database scalability, manageability
and performance. Microsoft SQL Server 6.0 provides the most effective
database technology available to help organizations manage increasingly
larger, more complex databases while substantially improving overall
system performance and scalability.

"These benchmark results highlight AT&T's excellent price/performance and
ability to exploit the scalability that Microsoft SQL Server 6.0 and
Windows NT Server offer," said Gary Voth, group product manager, Business
Systems Division, Microsoft Corp. "Together, Microsoft's server software
and AT&T's scalable PC server line provide customers with a strong
foundation for mission-critical business solutions."

The TPC-B benchmark simulates the activities found in complex OLTP
environments, such as disk I/O, fast transaction execution times, and
transaction integrity, and defines a standard for calculating data
throughput as measured by transactions per second (tpsB) and
price/performance, which represents total system cost of usage over five
years ($/tpsB).

AT&T Global Information Solutions, manufacturer of the award-winning
Globalyst PC family that ranges from laptops to PC servers, is leading the
world to personal computing and communications (PC&C). AT&T Global
Information Solutions helps its customers better understand and serve
their customers by more effectively getting, moving and using
information.

AT&T Global Information Solutions
1529 Brown Street, EMD-4
Dayton, OH 45479
800-447-1124

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