What is Java Ring?
A
Java Ring is a finger ring that contains a small microprocessor with built-in
capabilities for the user, a sort of smart card that is wearable on a finger.
Sun Microsystem's Java Ring was introduced at their JavaOne Conference and, instead of a gemstone, contained an inexpensive microprocessor in a
stainless-steel iButton running a Java virtual machine and preloaded with
applets (little application programs). The rings were built by Dallas
Semiconductor.
Workstations
at the conference had "ring readers" installed on them that
downloaded information about the user from the conference registration system.
This information was then used to enable a number of personalized services. For
example, a robotic machine made coffee according to user preferences, which it
downloaded when they snapped the ring into another "ring reader."
Although
Java Rings aren't widely used yet, such rings or similar devices could have a
number of real-world applications, such as starting your car and having all
your vehicle's components automatically adjust to your preferences.
The
Ring, first introduced at JavaOne Conference, has been tested at Celebration
School, an innovative K-12 school just outside Orlando, FL. The rings given to
students are programmed with Java applets that communicate with host
applications on networked systems. Applets are small applications that are
designed to be run within another application. The Java Ring is snapped into a
reader, called a Blue Dot receptor, to allow communication between a host
system and the Java Ring.
i-BUTTONS
An
iButton is a microchip similar to those used in a smart card but housed in a
round stainless steel button of 17.35mm x 3.1mm - 5.89mm in size .The iButton
was invented and is still manufactured exclusively by Dallas Semiconductor
mainly for applications in harsh and demanding environments.
A
Java Ring--and any related device that houses an iButton with a Java Virtual
Machine--goes beyond a traditional smart card by providing real memory, more
power, and a capacity for dynamic programming. On top of these features, the
ring provides a rugged environment, wear-tested for 10-year durability. You can
drop it on the floor, step on it, forget to take it off while swimming and the
data remains safe inside. Today iButtons
are primarily used for authentication and auditing types of applications. Since
they can store data, have a clock for time-stamping, and support for encryption
and authentication, they are ideal for audit trails.
iButton Viewer
With
the TMEX Windows installations you get the iButton Viewer, an application for
exploring iButton features from your PC. Before using the Viewer, you need only
connect a serial port kit (DS9097U + DS1402D-DR8) or a parallel port kit (DS1410E
+ DS1402D-DB8 ) to your PC. iButton Viewer automatically finds iButtons or
1-Wire chips on your system and displays their serial numbers with a
description of relevant features and menu options. As the iButton family grows,
iButton Viewer's capabilities will be expanded to include the new iButtons. The
OneWireViewer supports a wider array of iButtons and 1-Wire devices.
Java-powered cryptographic iButton
A
microprocessor and high-speed arithmetic accelerator generate the large numbers
needed to encrypt and decrypt information. The Java-powered iButton adds its complete cryptographic
circuitry to a Java Virtual Machine (VM) that is Java Card™ 2.0-compliant,
enabling the world's large pool of Java programmers to tap into a powerful
development tools to get an application up and running quickly. The
Java-powered iButton's greatest promise lies in its capacity to interact with
Internet applications to support strong remote authentication and remotely
authorized financial transactions.
Applications Of Java Ring
1)
Tracking Snail Mail
2) Sturdy Data Trackers
Java Ring - The Tidal Wave Of Future
A
Java Ring contains a processor compatible with Java Card 2.0, a Java Virtual
Machine, sizeable RAM and ROM memory capacity, and a real-time clock. Most
importantly, the iButton supports multiple applets that can be loaded
dynamically. Freed from the usual constraints of connectivity, this ring lets
you roam the world and bring with you your personal preferences--your computing
environment, your medical information, your choices of colors or coffee.
3 comments:
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