| Used Operating Systems |
| 1 | 9021 | 56.97 | 2710 | 48.37 | Windows NT |
| 2 | 4347 | 27.45 | 1998 | 35.66 | http://help.yahoo.com/help/us/ysearch/sl... |
| 3 | 1033 | 6.52 | 252 | 4.50 | +http://www.google.com/bot.html |
| 4 | 375 | 2.37 | 143 | 2.55 | Macintosh PPC |
| 5 | 362 | 2.29 | 179 | 3.19 | Windows 98 |
| 6 | 174 | 1.10 | 134 | 2.39 | +http://about.ask.com/en/docs/about/webm... |
| 7 | 159 | 1.00 | 48 | 0.86 | PPC Mac OS X Mach-O |
| 8 | 117 | 0.74 | 5 | 0.09 | Windows XP |
| 9 | 52 | 0.33 | 25 | 0.45 | +http://sp.ask.com/docs/about/tech_crawl... |
| 10 | 40 | 0.25 | 11 | 0.20 | Linux i686 [unknown version] |
| 11 | 28 | 0.18 | 14 | 0.25 | http://misc.yahoo.com.cn/help.html |
| 12 | 23 | 0.15 | 17 | 0.30 | PPC Mac OS X |
| 13 | 18 | 0.11 | 2 | 0.04 | Windows 9x |
| 14 | 12 | 0.08 | 6 | 0.11 | Windows 95 |
| 15 | 12 | 0.08 | 4 | 0.07 | MSIE 6.0 compatible; +http://www.become.... |
| 16 | 4 | 0.03 | 0 | 0.00 | SunOS sun4u |
| 17 | 4 | 0.03 | 2 | 0.04 | Macintosh |
| 18 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20021008 |
| 19 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020928 |
| 20 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20021004 |
| 21 | 2 | 0.01 | 2 | 0.04 | Win32 |
| 22 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X |
| 23 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020622 |
| 24 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020608 |
| 25 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20021120 |
| 26 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020321 |
| 27 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20021006 |
| 28 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20021002 |
| 29 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020522 |
| 30 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020919 |
| 31 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020225 |
| 32 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020511 |
| 33 | 2 | 0.01 | 2 | 0.04 | Solaris 2.4.x |
| 34 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020709 |
| 35 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020613 |
| 36 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020404 |
| 37 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020602 |
| 38 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020327 |
| 39 | 2 | 0.01 | 2 | 0.04 | i686 Linux; 20020309 |
| 40 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020818 |
| 41 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020524 |
| 42 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020906 |
| 43 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020120 |
| 44 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020117 |
| 45 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020205 |
| 46 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20021112 |
| 47 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20021222 |
| 48 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20021001 |
| 49 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020822 |
| 50 | 1 | 0.01 | 1 | 0.02 | i686 Linux; 20020220 |
