Meaning of APPLET in English
This a Java program that can be "embedded" in a web page. The difference between a standard Java application and a Java applet is that applets can't access system resources on the local computer. This means system files and serial devices (modems, printers, scanners, etc.) cannot be called or used by the applet. This is for security reasons -- nobody wants their system wiped out by a malicious Applet on some wacko's web site. Applets have helped make the web more dynamic and functional as well as giving an helpful boost to the Java programming language.
English glossary of computer and Internet terms. Английский глоссарий компьютерных и Интернет терминов. 2012