Java Ring a seminar report

 

A Java Ring is a wearable finger ring embedded with a small microprocessor designed to provide various user capabilities, resembling a smart card that can be worn on the finger. Introduced by Sun Microsystems at the 1998 JavaOne Conference, these rings substituted traditional gemstones with an affordable microprocessor enclosed in a stainless-steel iButton, which ran a Java virtual machine and came preloaded with applets (small application programs). Dallas Semiconductor was responsible for manufacturing these rings.

 

During the conference, workstations were equipped with "ring readers" that could extract user information from the conference registration system. This data was then utilized to enable personalized services. For instance, a robotic coffee machine could prepare coffee tailored to the user's preferences by accessing this information when the ring was placed into another "ring reader."

 

While Java Rings haven't gained widespread usage, they hold the potential for various real-world applications. These could include starting your car and automatically adjusting various vehicle components like seats, mirrors, and radio settings according to your personal preferences.

The Java Ring is a highly secure electronic token powered by Java, featuring a continuously running, unalterable real-time clock and sturdy packaging suitable for various applications. At its core is the Java iButton, a single-chip microcomputer with one million transistors, equipped with a robust Java Virtual Machine (JVM), all housed within a secure and durable stainless-steel casing.