In line with the company's recent policy on Java, these downloads will disable Apple's built-in Java plugin; users who try to run applets in their browser will instead be prompted to download the latest version of the Java plug-in
from Oracle .
Laptop, Tablet PC Desktop netbook PC Calculator Computing power + - o o Graphics resolution + - o/+ o/+ Battery life + o + Power plug necessary yes no yes no Computer lab required yes no no no Robustness + + - + Prize + - -/o/+ o/- Windows binaries yes no yes no Web applications yes no yes yes Java plug-in
yes no yes no Flash plug-in yes no yes no Table 2: Supported graphics formats of the most popular web browsers.
ATHE page probably uses a program called a Java applet to display webcam images, and to see them you need a Java plug-in
. Windows XP doesn't include this (although earlier Windows versions did), and without it your browser can't display the images so it displays that red X instead.
You have to download Sun's Java plug-in
yourself if you want Java.