也许很多人都没有注意到，今年9月份，微软更新了通过Windows根证书认证程序（Windows Root Certificate Program）的厂商清单，并首次将Startcom公司列入了该认证清单，这还是微软首次将提供免费数字验证技术 的厂商加入根证书认证列表中。现在，在Windows7或安装了升级补丁的Vista或XP操作系统中，系统会完全信任由Startcom这类免费数 字认证机构认证的数字证书。此举无疑在普及数字验证技术，从而增强用户网络数据安全性方面意义重大。
除了能简化验证程序之外，数字认证的另一个好处是使加密过程透明化，并能充分保证通过HTTP端口连接到服务器上时的安全性。目前为止，数字认证市场基本被大型公司所把持，要让自己的数字证书通过这些大公司的认证，通常需要缴纳昂贵的认证费，这就造成很少有公司使用HTTP端口进行数字验证。不过，火狐和Safari却很早便开始支持一些免费的数字验证技术，而微软则一直没有对其进行支持。
现在Windows终于将Startcom加入了根证书认证清单，这样网络开发者便可以在IE浏览器和其它Windows程序中使用Startcom提供的免费数字验证技术，以保证网站和网络服务的安全性。
这不仅对开发者而言意义重大，对用户而言也是一件好事，他们现在可以利用这些免费的数字验证技术，以密文的形式向这些网站收发数据，这样即便这些数据被黑客中途截获，也较难获知所传送数据的实际内容，这一点对确保无线网络或公网中用户数据安全的意义尤其重大。
| Position Sep 2009 | Position Sep 2008 | Delta in Position | Programming Language | Ratings Sep 2009 | Delta Sep 2008 | Status |
|---|---|---|---|---|---|---|
| 1 | 1 |  | Java | 19.383% | -1.33% | A |
| 2 | 2 | | C | 16.861% | +1.48% | A |
| 3 | 5 |  | PHP | 10.156% | +0.91% | A |
| 4 | 3 |  | C++ | 9.988% | -0.73% | A |
| 5 | 4 | | (Visual) Basic | 9.196% | -1.29% | A |
| 6 | 7 | | Perl | 4.528% | -0.31% | A |
| 7 | 8 | | C# | 4.186% | -0.15% | A |
| 8 | 6 | | Python | 3.930% | -1.08% | A |
| 9 | 9 | | JavaScript | 2.995% | -0.14% | A |
| 10 | 11 | | Ruby | 2.377% | -0.38% | A |
| 11 | 10 | | Delphi | 1.972% | -1.08% | A |
| 12 | 18 | | Pascal | 0.961% | +0.56% | A |
| 13 | 16 | | Lisp/Scheme | 0.842% | +0.42% | A-- |
| 14 | 13 | | PL/SQL | 0.819% | +0.12% | A |
| 15 | 14 | | SAS | 0.781% | +0.14% | A |
| 16 | 24 | | ABAP | 0.705% | +0.42% | A |
| 17 | 12 | | D | 0.588% | -0.68% | B |
| 18 | 42 | | Objective-C | 0.585% | +0.48% | B |
| 19 | 17 | | Lua | 0.507% | +0.09% | B |
| 20 | 25 | | MATLAB | 0.506% | +0.25% | B |
新华网南京１１月２８日电（记者蔡玉高、周润健）江苏、天津两地天文学会通报，１２月天宇将上演“双星拱月”、２号小行星智神星冲日、双子座流星雨极盛和小熊座流星雨极盛等四大天象。
１２月１日傍晚金星、木星将与月亮一起上演“双星拱月”的美妙天象。公众在晴夜观赏时，应选择在西南方的开阔地，避开
山丘和建筑物的遮挡。“双星拱月”在太阳落山后不久就要闪亮出场。精彩的演出时间仅为半小时左右，如有望远镜，还可欣赏金星“小月亮”般的芳容，并观赏木星附近几个排成一排的卫星。
一颗名叫智神星的小行星将在１２月１０日冲日，天文爱好者可以通过小型天文望远镜一睹其神秘风采。冲日期间，智神星与太阳的黄经相差１８０度，太阳一落山智神星即从东方地平线升起，直到第二天日出才从西方落下，因此整夜均可观测。
因为有双子座流星雨，１２月的天空从来都不寂寞。今年的双子座流星雨的活跃期从 １２月７日开始到１７日结束，其中极盛将发生在１３日。令人遗憾的是，原本值得期待的流星雨极盛时观测将受到满月的严重干扰。不过，由于双子座流星雨活跃 期的流量也比较大，因此感兴趣的公众从７日开始就可对其进行观测。
作为今年最值得期待的流星雨之一，小熊座流星雨将是２００８年天宇奉献给公众的最后一场好戏。今年小熊座流星雨极盛的精确预报是在北京时间２２日１５时３０分，极盛时的流量可达每小时５０颗以上。对于我国的观测者来说，当日晚至次日清晨都是较为理想的观测时间。
转载的一篇文章，用于安装Vista时关闭SATA，之后需要打开却无法启动的情况
Advanced Host Controller Interface (AHCI) mode is a BIOS option in my computer for the SATA hard disk controller. It lets the OS use Native Command Queuing (NCQ/aka SATA mode) to reorder disk read or write requests to make the reading and writing more efficient, particularly if the disk is very busy.
My BIOS has options IDE, RAID, or AHCI mode. RAID includes all of the ACHI features and Intel recommend that you choose the RAID before you install an OS because changing it afterward can be painful (or "unsupported" if you have an Intel motherboard!).
The process in Vista seems to be less painful than in Windows XP because VISTA includes AHCI drivers by default. However, if AHCI mode was not enabled at the time you installed Vista then the new drivers will not be loaded, and if you change the BIOS setting then Windows doesn't boot.
Simple solution:
- Start with IDE mode selected in the BIOS, and boot Windows Vista.
- Exit all Windows-based programs.
- Click Start, type regedit in the Start Search box, and then press ENTER.
- If you receive the User Account Control dialog box, click Continue.
- Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci
- In the right pane, right-click Start in the Name column, and then click Modify.
- In the Value data box, type 0, and then click OK.
- On the File menu, click Exit to close Registry Editor.
- Reboot, and change to AHCI mode in the BIOS. Windows will detect some changed hardware (anything connected to a SATA port).
- For good measure I downloaded and (re)installed the chipset drivers for my motherboard. I have an my motherboard uses an Intel G33 chipset and I wasn't sure if I needed to install the Intel Matrix Storage Manager, but when I tried it told me that I already had a more recent version of the software installed. I guess part of the chipset driver package overlaps with the Storage Manager software.
Finally, I'm not sure if it is to do with the change to AHCI or not, but I've had intermittent trouble shutting down the PC - Vista seems to hang on the "Shutting down" screen and the hard disk light keeps flashing. According to my event log the machine reboots itself after 20 minutes of that, but there were no other clues in the event log. (Someone with a related problem? http://episteme.arstechnica.com/eve/forums/a/tpc/f/77909774/m/433004204831)
This worked fine for me. Choosing RAID mode still stops Windows from booting, but I'm not worried about that!
KB信息 http://support.microsoft.com/kb/922976
