--- For more information contact: MICROSOFT CORPORATION Liz Sidnam/Marty Taucher 206/882-8080 ZIFF-DAVIS PUBLISHING PUBLIC RELATIONS Greg Jarboe 617/393-3313 WAGGENER EDSTROM Catherine Richardson/Claire Lematta 503/245-0905 Microsoft and PC Magazine Develop Winstone Hardware Benchmark San Francisco, Calif., March 2, 1992. Microsoft Corporation and Ziff-Davis Publishing Company today announced plans to create the Winstone benchmark, a software test designed to measure the performance of Microsoft Windows-compatible personal computers. The benchmark will be jointly developed by Microsoft and Ziff-Davis, publisher of PC Magazine, with input from industry sources. The test will be distributed widely to personal computer manufacturers and others conducting independent tests. The Winstone announcement was made at the Microsoft Windows Hardware Engineering Conference being held here March 1-3, attended by over 400 engineers representing nearly two hundred PC and accessory board manufacturers from around the world. The conference focuses on techniques and components for optimizing personal computer designs for better performance running the Windows operating system. Strong customer demand for the Windows operating system has created a need for a test offering a single, reliable indicator of overall PC performance under Windows. "End users will get a more accurate measure of total system performance, allowing an objective comparison of various systems before making a purchase decision," said Jonathan Lazarus, general manager of systems software marketing at Microsoft. "Winstone gives consumers a big advantage because it's a real-world benchmark." The Winstone benchmark will test the overall performance of PCs running the Microsoft Windows 3.X operating system and related applications by precisely reproducing the demands that the software environment places on hardware by emulating typical application usage scenarios. The Winstone benchmark will be based on a range of spreadsheets, word processors and other software manipulating data files of different sizes and types that reflects the mix of tasks undertaken by the typical PC user. Ziff-Davis, as publisher of several widely-read computer industry periodicals, will help select applications scenarios reflective of the broadest segment of the Windows computing market and develop models of user activity. "Ziff-Davis and PC Magazine Labs will work to define a benchmark that responds to the needs of users as accurately as possible," said Michael Miller, Editor-in-Chief of PC Magazine. Microsoft and Ziff-Davis will also consult with others in the PC industry, including Intel Corporation of Santa Clara, CA, to ensure the accuracy of the benchmark. The Winstone benchmark will complement other measures of computer performance, including PC Magazine Labs Winbench and other tests, and suites developed by the Business Application Performance Company (BAPCo). Intel, Microsoft and Ziff-Davis are active members of BAPCo, a consortium of hardware and software vendors that is focused on developing application-based benchmarks that accurately reflect the performance of computing systems. Microsoft Corporation (NASDAQ MSFT) develops, markets and supports a wide range of microcomputer software for business and professional use, including operating systems, network products, languages and applications, as well as books, hardware and CD-ROM products for the microcomputer marketplace. In addition to PC Magazine, Ziff-Davis Publishing Company publishes PC Week, PC/Computing, Computer Shopper, PC Sources, MacUser and MacWeek in the U.S. and a variety of sister publications in Europe. Ziff-Davis Publishing, a division of Ziff Communications Company, also produces trade shows, conferences and newsletters though its Interop and Seybold operations. ###