操作系统统计
Web 统计和趋势
统计信息是非常重要的。下面的统计，整理自 W3School 超过 5 年的日志文件，您可以从中总结出操作系统使用的长中期趋势。
OS 平台统计
Windows XP 是最常用的操作系统。而 windows 家族占到使用率的 90%：
| 2008 | WinXP | W2000 | Win98 | Vista | W2003 | Linux | Mac |
|---|---|---|---|---|---|---|---|
| March | 72.6% | 3.7% | 1.1% | 8.4% | 1.9% | 3.9% | 4.4% |
| February | 72.3% | 4.0% | 1.0% | 7.6% | 1.8% | 3.8% | 4.3% |
| January | 73.6% | 4.0% | 0.8% | 7.3% | 1.9% | 3.6% | 4.4% |
| 2007 | WinXP | W2000 | Win98 | Vista | W2003 | Linux | Mac |
| November | 73.8% | 5.1% | 1.0% | 6.3% | 2.0% | 3.3% | 3.9% |
| September | 74.3% | 5.4% | 0.9% | 4.5% | 2.0% | 3.4% | 3.9% |
| July | 74.6% | 6.0% | 0.9% | 3.6% | 2.0% | 3.4% | 4.0% |
| June | 74.6% | 6.2% | 0.9% | 3.2% | 2.0% | 3.4% | 4.0% |
| May | 75.0% | 6.5% | 0.9% | 2.8% | 1.9% | 3.4% | 3.9% |
| April | 75.8% | 6.8% | 0.9% | 2.6% | 1.9% | 3.4% | 3.9% |
| March | 76.0% | 7.2% | 0.9% | 1.9% | 1.9% | 3.4% | 3.8% |
| February | 76.1% | 7.4% | 0.9% | 1.2% | 1.9% | 3.5% | 3.8% |
| January | 76.1% | 7.7% | 1.0% | 0.6% | 1.9% | 3.6% | 3.8% |
| 2006 | WinXP | W2000 | Win98 | WinNT | W2003 | Linux | Mac |
| December | 75.7% | 7.9% | 1.0% | 0.2% | 1.9% | 3.6% | 3.8% |
| November | 74.9% | 8.0% | 1.0% | 0.3% | 1.9% | 3.5% | 3.6% |
| October | 74.6% | 8.9% | 1.2% | 0.3% | 2.0% | 3.5% | 3.6% |
| September | 74.6% | 9.2% | 1.4% | 0.3% | 2.0% | 3.5% | 3.6% |
| August | 74.4% | 10.1% | 1.4% | 0.3% | 2.1% | 3.5% | 3.6% |
| July | 74.3% | 10.1% | 1.5% | 0.3% | 2.0% | 3.4% | 3.6% |
| June | 74.1% | 10.6% | 1.6% | 0.3% | 2.0% | 3.4% | 3.6% |
| May | 74.2% | 10.7% | 1.6% | 0.2% | 2.0% | 3.4% | 3.6% |
| April | 74.0% | 11.2% | 1.8% | 0.3% | 1.9% | 3.3% | 3.6% |
| March | 72.9% | 11.9% | 2.0% | 0.3% | 1.8% | 3.4% | 3.5% |
| February | 73.3% | 12.3% | 2.1% | 0.3% | 1.8% | 3.4% | 3.6% |
| January | 72.3% | 13.1% | 2.4% | 0.3% | 1.7% | 3.3% | 3.5% |
| 2005 | WinXP | W2000 | Win98 | WinNT | W2003 | Linux | Mac |
| November | 71.0% | 14.6% | 2.7% | 0.4% | 1.7% | 3.3% | 3.3% |
| September | 69.2% | 15.8% | 3.2% | 0.5% | 1.7% | 3.3% | 3.1% |
| July | 65.3% | 17.7% | 3.9% | 0.6% | 1.6% | 3.5% | 3.0% |
| May | 64.5% | 19.4% | 3.9% | 0.8% | 1.4% | 3.3% | 2.9% |
| March | 63.1% | 20.2% | 4.7% | 0.9% | 1.4% | 3.2% | 3.0% |
| January | 61.3% | 21.6% | 5.3% | 1.0% | 1.2% | 3.2% | 2.8% |
| 2004 | WinXP | W2000 | Win98 | WinNT | Win95 | Linux | Mac |
| November | 59.1% | 23.7% | 5.6% | 1.2% | 0.1% | 3.1% | 2.7% |
| September | 55.9% | 26.2% | 6.4% | 1.5% | 0.2% | 3.1% | 2.6% |
| July | 52.5% | 28.4% | 7.5% | 1.9% | 0.2% | 3.1% | 2.4% |
| May | 51.0% | 29.6% | 8.2% | 2.0% | 0.3% | 2.9% | 2.5% |
| March | 48.0% | 31.1% | 9.4% | 2.4% | 0.4% | 2.6% | 2.4% |
| January | 44.1% | 33.6% | 10.4% | 3.0% | 0.4% | 2.7% | 2.4% |
| 2003 | WinXP | W2000 | Win98 | WinNT | Win95 | Linux | Mac |
| November | 42.6% | 36.3% | 10.9% | 3.5% | 0.4% | 2.6% | 2.2% |
| September | 38.0% | 37.9% | 12.1% | 4.1% | 0.5% | 2.4% | 2.0% |
| July | 33.9% | 40.6% | 12.6% | 5.3% | 0.6% | 2.3% | 1.9% |
| May | 31.4% | 41.0% | 13.9% | 5.8% | 0.7% | 2.2% | 1.8% |
| March | 29.1% | 41.9% | 14.8% | 6.6% | 0.8% | 2.2% | 1.8% |
统计信息经常会成为一种误导
您 - 作为一位 web 开发者 - 仅仅依靠统计是不行的。统计或许会成为一种误导。
全球的平均值并不总是与您自己的网站相对应。不同的站点会吸引不同的受众。某些站点的受众是那些使用专业硬件的职业开发者，而其他的站点所吸引的用户则使用着低规格的电脑。
（以上的统计提取自 W3School 的日志文件，但是我们同样会监控互联网上的其他数据源，以确保数据的质量）。
注释：以上数据均引自 W3School 英文版。