1. Randy Kendzior, Dell, Inc. September 24, 2004 Wireless Technology Discussion Massachusetts Digital Government Summit

2. Client Technologists Dell Confidential 2 of 23 Wireless Networks – A Simple Overview WPAN WLAN WWAN Personal space Home, Campus, Hotspots Metros, Countries, Global

3. Client Technologists Dell Confidential 3 of 23 Current WLAN Technology Comparisons 802.11b802.11a802.11b/g802.11a/b/g Maximum Data Rate11 Mbps54 Mbps Frequency Band2.4 GHz5 GHz2.4 GHz5/2.4 GHz Channels312312/3 Typical RangeUp to 300’Up to 180’Up to 300’Up to 180/300’ 802.11b CompatibleYesNoYes 802.11b – Broadly deployed, lowest cost solution moving to cell phones and handhelds 802.11b/g - New mainstream WLAN solution, best for majority of mobile workers 802.11a - Provides added capacity in crowded enterprise environments 802.11a/b/g – Future-proof for maximum capacity and compatibility

4. Client Technologists Dell Confidential 4 of 23 2006 2005 2004 Past Security Radio WLAN standards will emphasize throughput, QoS, security & management… WLAN Technology Roadmap QoS Other Wi-Fi 802.11b Wi-Fi 802.11b 802.11g 802.11a 802.11n WME (eDCF) WME (eDCF) 802.11e WEP WPA (TKIP) WPA (TKIP) 802.11i (AES) 802.11i (AES) 802.1x Cisco CCXv1 Cisco CCXv1 CCXv2 CCXv3 Migration to dual-band Faster data rates with.11n Migration to dual-band Faster data rates with.11n VoIP & streaming support Strong AES encryption Port-based authentication Strong AES encryption Port-based authentication Cisco interoperability Measurements & regulatory Cisco interoperability Measurements & regulatory 802.11d 802.11h 802.11k

5. Client Technologists Dell Confidential 5 of 23 WLAN Market Overview Wireless technologies, characterized according to range and mobility, will evolve to higher data rates WLAN market growth will be driven by improved costs, capabilities & usages WLAN standards will address throughput, QoS, security and management Security remains a key perceived barrier to enterprise WLAN adoption WLAN security solutions exist today and will be enhanced in the future WLAN Market Overview

6. Client Technologists Dell Confidential 6 of 23 Wireless technologies, categorized by mobility and range, will continue to evolve to higher data rates... Wireless Technology Roadmap WLAN Wi-Fi 802.11b Wi-Fi 802.11b 802.11g 802.11a 802.11n 11 Mbps 100+ Mbps 54 Mbps Increasing Range and Mobility  WWAN GSM GPRS GSM GPRS 115 kbps WCDMA (UMTS) WCDMA (UMTS) EDGE HSPDA 384 kbps 2 Mbps CDMA 2000 1xRTT CDMA 2000 1xRTT 1xEV-DV 1xEV-DO 144 kbps2.4 Mbps 3.1 Mbps 2007+ 2006 2005 2004 Past WPAN Bluetooth 1.1 Bluetooth 1.1 Bluetooth 1.2 Bluetooth 1.2 Bluetooth EDR Bluetooth EDR Zigbee 802.15.4 Zigbee 802.15.4 UWB 802.15.3a UWB 802.15.3a Zigbee 802.15.4’ Zigbee 802.15.4’ 3 Mbps 250 Kbps 1 Mbps 100 Mbps+ NG UWB 480 Mbps Bluetooth 2.x Bluetooth 2.x 1 Mbps BWA WiMAX 802.16a WiMAX 802.16a 802.16e MobileFi 802.20 MobileFi 802.20 2-60 Mbps

7. Client Technologists Dell Confidential 7 of 23 Wireless Application Landscape Short Range Long Range Low Data RateHigh Data RateVery high Data Rate PAN LAN WAN Text, Graphics, Internet, Compressed Audio Data, Streaming Video, Internet, Hi-Fi Audio Multi-channel Video & HDTV Wireless technologies, categorized by mobility and range, will continue to evolve to higher data rates... UWB MMDS/LMDS 802.11b/g 802.11g/a GSM/CDMA GPRS/3G Bluetooth 1.1 Zigbee Bluetooth 2 (MR) 802.11n 802.16e MAN 802.16a

8. Client Technologists Dell Confidential 8 of 23 My_Network My_Data Wireless will be pervasive, enabling seamless network and device connectivity… Wireless Everywhere and Anywhere WPAN WWAN BWA WLAN GPS RFID  Airport  Customer  Office  Home

9. Client Technologists Dell Confidential 9 of 23 UWB Usage Scenarios Digital Home Broadband UWB LAN/WLAN Network UWB UWB usage models evolving for Cable replacement in the Digital Home

10. Client Technologists Dell Confidential 10 of 23 RADIUS UWB 802.11a Acronym Anxiety WiMAX Bluetooth WEP 802.11n 802.11g 802.11i AES TKIP Wi-Fi QoS Zigbee CCX EAP 802.11b UWB GPRS CDMA 802.11e 802.11h 802.16 PEAP

11. Thank You