Java Ring | Advantage , Disadvantage, iButton

What is Java Ring?

Java ring

About Java Ring: A Java Ring could also be a finger ring that contains a little microprocessor with built-in capabilities for the user, a sort of revolving credit that's wearable on a finger. The Java Rings were built by Dallas Semiconductor. Java Ring is a stainless-steel ring,16-millimeters (0.6 inches) in diameter. Java Ring contains an inexpensive microprocessor in a stainless-steel iButton that runs JVM and is preloaded with the applet. 

The Java Ring is a highly secure electronic token powered by Java. Java Ring has a number of real-world applications. A Java Ring may be a personal thing that the user and only the user carry along anytime and anywhere to authenticate you in every situation. Since Java Ring has not been very popular these days, it’s really a new opening. The main components are RAM (134 KB), ROM (32 KB), a real-time clock, and a java virtual machine (JVM). 

As per the History of Java Ring 

Dallas Semiconductor, a company founded in 1989, developed a stainless steel-encased storage device. It followed the Dallas Semiconductor 1-Wire communication protocol's rules. It was upgraded to a self-contained memory device in 1990. It was previously known as touch memory before being renamed to iButtons. They took the shape of batteries. 

The RS232C serial port adaptor was employed, which was a very cost-effective option. Using the Blue Dot receptor, this memory was able to provide users with read and write functions. It has a life expectancy of roughly ten years thanks to the lithium energy supply. 

It is possible to perform a variety of read and Write operations without wearing out the memory. Canadian Cows wore these as earrings to store vaccination information. They were eventually improved to include temperature sensors, timers, and even microprocessors in order to provide secure financial transactions.


The components of Java Ring: - 

Java Ring has mainly 6 components: -  

1. JVM (Java Virtual Machine)  

2. RAM  

3. ROM  

4. Real-time clock  

5. iButton  

6. Blue dot receptor

Application/Use of Java Ring: -   

  • Access control to buildings and equipment.   
  • It secures the network log in using challenge/response authentication.   
  • Storage vault for user names and passwords.   
  • It is the user profile for rapid internet form-filling.   
  • It provides a digital signature or E-Commerce.   
  • Digital photo ID and fingerprint biometrics.  
  • The java ring is often wont to hold secret codes, credit card numbers, driver licenses, other wallet contents, and even some electronic cash.   
  • Its greatest promise of java ring is to dwell its capacity to interact with Internet applications to support stronger remote authentication and remotely authorized financial transactions easily.   


Advantage of Using Java Ring: -   

  • A Java Ring becomes a customized key to protected assets and knowledge. The specified event, like opening a lock, is enabled by touching the right key to an iButton reader.    
  • Java Ring provides authentication to users which is crucial for several applications. It is easier for the administrator to maintain the security infrastructure.   
  • The Java Ring provides an easy, secure way of identifying an individual or asset. It can function as an electronic serial number that's never duplicated.   
  • Java Ring is often a customized token and acts sort of a chickenfeed purse for one or multiple applications. They are perfect for a good sort of e-Cash function like mass transit systems, parking meters, gaming systems, vending, and fleet refueling.   


The disadvantage of Using Java Ring:-  

  • iButton (or java iButton) features limited processor power and memory. For better performance and scalability, it's imperative to maneuver the processing load to the appliance server.   
  • Even though iButton is often purchased for a cheaper price, so as to function, it needs a receiver like a blue dot receptor which might be very expensive.   
  • A Java Ring-based system doesn’t automatically allow any user mobility. The problem with the Java Ring that a lot of the organizations don’t even know the existence of Java Ring.   
  • Since the limited amount of data are often stored which suggests a private might got to carry quite one Java Ring.   




An iButton may be a device with a microchip that's encased during a durable chrome steel enclosure measuring 16 mm thick and meant to resemble a button, hence the name. It is designed to be durable and mountable anywhere in order that it is often wont to carry up-to-date information, even in harsh outdoor environments.  

  • The jewel of the java ring is that the iButton.   
  • iButton may be a computer chip enclosed during a thick chrome steel can.   
  • it's originally called “touch memory devices they were later renamed as “iButton”.   
  • Java ring uses a 1-wire protocol for communication with the host and therefore the iButton.   
  • The iButton may be a mechanical packaging standard that places a 1-Wire component inside a little chrome steel "button" almost like a disk-shaped battery.   
  • Each iButton features a unique and unalterable address laser attached to its chip inside the can lid.   
  • The address is often used as a key or identifier for every iButton.


Conclusion: -   

Although Java Rings aren't widely used yet now, such rings and similar devices could have a number of real-world applications and work to make your lifestyle more comfortable, such as starting your car and automatically adjust to your preferences.   

The key issue a few wearable computers (java ring) isn't whether it's a hoop or another form factor: the deciding point is that you simply will always have it with you.   

Post a Comment