Windows 8 Ecosystem Introduction2.ppt

1、Windows 8 Ecosystem Introduction,2009 December,Introduce Windows 8 system Connected Standby USB3.0 Wi-Fi Direct Near-Field Communication UEFI Push-Button Reset Q & A,Agenda,Windows 8 system,Windows 8 system,Fast and Fluid touch experience Long Battery Life Fun and Intuitive Connecting to Device Conf

2、ident and Safe from malware,Windows 8 system,Fast and Fluid touch experience -Smooth & Precise System Operations are effortless Panning gestures are smooth Multipoint manipulations are immediate Targeting with fingers is precise Typing on the screen is quick and efficient App behavior is consistent,

3、Windows 8 system,Long Battery Life -Power management Suspended Connected Standby Network offload/coalescing,Windows 8 system,Fun and Intuitive -Sensor Fusion Integrate Windows integrates support for sensors ALS, gyroscope, accelerometer, compass, IR HID-compatible class driver for USB or I2C Driver

4、model for other low-power peripheral busses Sensor Fusion integrates input from multiple sensors to represent complex actions (motion/orientation) Easily accessible from Metro style apps,Windows 8 system,Connecting to Device,Bluetooth LE delivers low power wireless connectivity for longer battery li

5、fe or new classes of low power devices,Wi-Fi Direct provides high bandwidth, secure, peer-to-peer device connectivity between PCs and devices,USB 3 offers up 10 x speed of USB 2.0, higher power for charging, lower power requirements,Near-field Communication is a low bandwidth, short range communicat

6、ion technology perfectly suited for person-to-person sharing and simplifying device pairing,Windows 8 system,Confident and Safe from malware Fast, beautiful boot Reduce root/boot kit attacks Enhance malware detection Encrypt and protect user date Push-Button Reset,+ BitLocker,Connected Standby,USB 3

7、.0,USB 3.0,USB 3.0 overview Fundamentals Easy to use, energy efficient, and reliable Backwards compatible with existing devices/classes Storage Higher transfer rates, up to 10 x faster than USB 2.0 New protocol, USB Attached SCSI High Definition A/V Higher transfer rates enable devices to send uncom

8、pressed A/V data,USB 3.0,USB 3.0 General guidelines Enable boot Support USB 3.0 in your BIOS Offer USB ports Use a micro A/B connector and dongle if a standard “A” port is too thick Save power Support Selective Suspend in all of your device drivers Ensure SuperSpeed hubs and devices support Link Pow

9、er states (U1/U2),USB 3.0,Expected USB performance,Standard Definition Movie (6 GB),USB 1.0,High Definition Movie (25 GB),Song or Picture (4 MB),5.3 seconds,2.2 hours,9.3 hours,0.1 seconds,3.3 minutes,13.9 minutes,0.01 seconds,20 seconds,70 seconds,USB 2.0,USB 3.0,USB 3.0,Power & Compatibility More

10、Power efficient No more polling New power states (U1/U2) Function power Management Faster transfers,Improved power distribution 900mA of current 80% more than USB 2.0,USB 3.0,Windows 7 USB driver stack,USB Driver Stack,USB Hub,USBPORT,USBEHCI,USBOHCI,USBUHCI,EHCI Controller,OHCI Controller,UHCI Cont

11、roller,USBCCGP,WinUSB,Client Drivers,USB 3.0,Windows 8 USB driver stack,EHCI, UHCI and OHCI Driver Stack,USBHub,USBPORT,USBEHCI,USBUHCI,USBOHCI,EHCI Controller,OHCI Controller,UHCI Controller,xHCI Driver Stack,USBHub3,UCX (Host Controller Class Extension Driver),USBxHCI,xHCI Controller,Client Driver

12、s,USBCCGP,WinUSB,Demo video -USB 3.0 in action,Wi-Fi Direct,Wi-Fi Direct,What is Wi-Fi Direct ? Is a peer-to-peer connectivity technology Provides a secure, wireless connection between two devices Does not require a Wi-Fi router or joining a Wi-Fi network In Windows 8 Wi-Fi Direct Is integrated into

13、 the Wi-Fi stack & the Device Experiences Builds on existing Wi-Fi hardware Allows concurrent connection to Internet & Devices Is optimized for power savings,Wi-Fi Direct,What is Wi-Fi Direct ?,Wi-Fi Direct 的特性 1.行動性 -不需要任何連線設備，或是Router/AP 2.即時性 -只需一台支援Wi-Fi Direct的裝置，即可使用現有的Wi-Fi環境資源，與其他無線裝置進行連線 3.

14、便利性 -Device Discovery & Service Discovery幫助使用者確定可用的設備&服務 4.安全性 -Wi-Fi Direct採用的WPS的機制，簡化連線設定，卻提高的連線的安全性,Wi-Fi Direct,Wi-Fi Direct Experience in windows 8 Devices : Streaming Media to Devices Simple setup High bandwidth connection Apps : Communicate over Wi-Fi Direct Leverages proximity API No additi

15、onal setup needed,Wi-Fi Direct,How Wi-Fi Direct works in windows 8,pair,connect,+,+,Wi-Fi Direct,Wi-Fi Direct additional information Not support 802.11 /b Wi-Fi Direct的連線需視設備本身的功能來判斷是否能夠支援1對多 Wi-Fi Direct的設備無法取代原先的無線基地台，因為所採用的規範和定位皆不同。 Wi-Fi Direct的連線方式與原本Wi-Fi的Ad hoc不同，因為它同時還提供了交叉連接的功能，讓你能夠同時使用傳統的W

16、i-Fi連線，以及P2P的連線模式。 Wi-Fi Direct的連線方式採取WPS認證，最好還是使用在支援WPA2的設備上。(WPS 目前已到了v2.0) 在必要情況之下，可以切斷傳統Wi-Fi連線和Wi-Fi Direct之間的互通,Near-Field Communication,Near-Field Communication,NFC introduction Based on RFID transfer technology. Low Bandwidth :13.56MHz Speed: 106848Kbit/s Transfer distance: 1020 cm Communica

17、tion mode: Passive and Active More secure and convenience,Near-Field Communication,Proximity User Model Tap and go is a gesture thats a natural interaction between people in close proximity to each other through devices they are holding to do something together.,Near-Field Communication,NFC 的主要應用介紹

18、Tap and go experience -主要可應用在門禁管製或車票及門票等，使用者只需攜帶儲存著票證或門控代碼的裝置靠近讀取裝置 Confirm information -主要涵蓋行動付費機製，通常使用者必須輸入密碼，以確認交易行為 Connect to NFC device -將兩個內建NFC的裝置相連接，以進行點對點資料傳輸 Touch and explore - NFC裝置所提供的功能極為豐富，還可作為簡易的資料擷取應用，例如從海報上的智慧型標簽直接讀取網址(類似QR code的功能),UEFI Unified Extensible Firmware Interface,UEFI,

19、Delivering a secure and fast boot experience with UEFI Improving the boot experience,POST,POST,OS initialization,Service & app initialization,Service & app init,Hiberfile read,Device initialization,Explorer ready,Explorer ready,Windows 7,Windows 8,Looks and feels like a regular shutdown / boot Lever

20、ages Hibernate technology to cache the core system Enabled by default Delivers considerable improvements: -Boots more than twice as fast on SSD-based netbooks, including POST -Need partners to continue work to reduce POST times,UEFI,A seamless experience,POST,Explorer init.,Device init.,Hiber resume

21、,2s 4s 6s 7s,OEM Logo,OEM Logo,Seconds,Boot phase,User view,Clean, high-resolution branding elements persist through OS boot,Post with highest supported native resolution,Seamless single graphics transition from firmware to native OS driver,UEFI,Enhancing Security -Secure boot Current issues with bo

22、ot -Growing class of malware targets the boot path -Often the only fix is to reinstall the operating system UEFI and Secure Boot harden the boot process -All firmware and software in the boot process must be signed by a trusted Certificate Authority (CA) -Required for Windows 8 client -Does not requ

23、ire a Trusted Platform Module (TPM) -Reduces thelikelihood of bootkits, rootkits, and ransomware,UEFI,Enhancing Security -UEFI, Windows 8, and BitLocker Native support for encrypted hard drives -Requires Windows 8, TPM, and UEFI -BitLocker offers central key management, predictable protection, zero-

24、cost provisioning, and security against loss/theft -Encrypted hard drives add instant encryption and great performance Network unlock for BitLocker -Requires Windows 8, TPM, DHCP, and UEFI -Allows admins to boot remote systems without user interaction -If taken outside the trusted location, the mach

25、ine will require a PIN in order to boot -No more trade-offs between security and power management or servicing,UEFI,Design Guidance -UEFI Firmware evolution,Firmware,Platform Specific UEFI Firmware,Windows OS,System hardware,UEFI Runtime Services,UEFI OS Loader,ACPI BIOS,ACPI registers,ACPI tables,A

26、CPI driver,UEFI Win32/NT APIs,Compatibility Support Module (CSM),BIOS OS loader,BIOS mode,Legacy BIOS,UEFI mode,Pre-1998,1998 ,Today,UEFI,Design Guidance -Advantages of UEFI vs. BIOS,UEFI,UEFI的特性與優點 定址空間更彈性 - UEFI BIOS利用載入EFI driver的形式，來進行硬體的辨識控制及系統資源掌控。 傳統BIOS是以真實模式中斷向量的方式增加硬體功能。它要將一段類似於驅動程式的16位元代碼

27、，放置在記憶體0 x000C0000至 0 x000DFFFF之間。這段記憶體空間有限(128KB)，因此，當必須放置的option ROM超過128KB時，傳統BIOS便無能為力。 UEFI BIOS可以更有系統的分配儲存空間，避免使用強制定址。 什麼系統都能用 -UEFI系統下的驅動並不是可以直接在CPU執行的代碼，而是用EBC（EFI Byte Code）這種專用於EFI driver的虛擬機器指令，該指令必須在UEFI的DXE階段被解壓縮後翻譯執行。如此便有更佳的向下相容性，因為EFI driver是彈性的驅動程式模組架構，可不斷的擴充驅動程式及介面，不用重新編寫，所以就無需考慮因系統

28、升級所衍生的相容性因素。,UEFI,UEFI的特性與優點 開發維護更容易 -加上EFI driver開發簡單，所有的PC零組件廠商都可以參與，有了 EFI driver，也可以讓顯示卡在開機階段就載入某種程度的功能，進而可以把傳統文字介面為主的BIOS轉成圖形介面。 精簡系統用途大 -EFI Shell，這是個精簡的作業系統，可以讓使用者進行BIOS的更新、系統診斷、安裝特定軟體。有了UEFI BIOS甚至可以播放CD和DVD而不需完全載入OS，EFI driver可以被載入或卸載，連TCP/IP核心程式都可以使用。基於EFI的driver model可使UEFI系統接觸到所有的硬體功能，在進

29、入作業系統之前瀏覽網站不再是天方夜譚，甚至實作起來也非常簡單。總之，對使用者而言，多了一個方 便的環境以及華麗的圖形介面，是最明顯的好處。,Push-Button Reset,Push-Button Reset,Overview Push Button Reset enables customers to reset their PCs while keeping the things they care about Two modes of operations -Refresh Fixes problems by resetting just Windows while leaving u

30、ser data, personalization settings, and Metro style apps unaffected -Reset Prepares the PC for recycling or for transfer of ownership by resetting Windows and removing all user data and applications Refresh can address most difficult-to-diagnose issues and is preferred over reset when a PC is experi

31、encing problems,Push-Button Reset,Refresh vs. Reset What happens when customers refresh their Windows 8 PCs A fresh copy of Windows will be installed User data will not be touched and do not have to be backed up beforehand Settings and configurations such as machine name, user accounts, wireless profiles, and personalization settings will be preserved