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Technology Stocks : Intersil - ISIL

ISIL 22.49

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Feb 27 4:00 PM EST

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To: Jack Hartmann who started this subject	11/3/2001 3:21:09 PM
From: Dexter Lives On	of 467

Microsoft nixes certification for 5-GHz wireless LAN chips By Patrick Mannion EE Times (11/02/01, 7:43 p.m. EST) MANHASSET, N.Y. — Atheros Communications Inc.'s plans to announce that its 5-GHz wireless LAN chip has received the coveted Windows Hardware Quality Labs (WHQL) certification from Microsoft Corp. is mired in uncertainty. Microsoft apparently will only grant the certification to devices that also support 802.11b (2.45-GHz) WLANs, and Atheros' device is a 5-GHz-only product. WHQL certification is a guarantee of a device's interoperability and usability on any PC with a Microsoft Windows operating system, and is regarded as a stepping stone to full Windows native support. "The requirement that any 802.11a [5-GHz] device also have a backward-compatibility mode for 802.11b is in the WHQL requirements," a Microsoft spokesman said. "This ensures that there is a clear upgrade path to 802.11a, which is good for the customer." The requirement implies that suppliers of 5-GHz-only chips must incorporate 802.11b functionality through either their own development work or through a partnership with an 802.11b chip vendor in order to obtain Microsoft's certification. At least one 802.11b vendor has told EE Times that 5-GHz chip vendors have come looking for 802.11b support. The Microsoft strategy makes sense to some analysts, who said the company has put great time and effort into natively supporting 802.11b technology. While Atheros is holding off on making a formal announcement on certification while the issue is sorted out, the Atheros reference board with the AR5000 chip set can nonetheless be found on the WHQL Web site as a certified product. eetimes.com

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