Get the hardware architecture of a java card:RAM,EEPROM,ROM

[Character]

The Applets developed with technology JavaCard on all smart cards based on this technology, regardless of the card provider and the underlying hardware, The API of JavaCard is compatible with international standards for smart cards such as ISO 7816 or EMV. Can anybody give the hardware architecture of a java card:RAM,EEPROM,ROM.

[MindSpace]

The configuration is the basis of J2ME . It consists of the virtual machine and low- level libraries . There are currently two types of configurations : CDC and CLDC . Their use depends on the type of material which will run the Java environment . The configurations are stackable , so that what is planned to run on a CLDC configuration can run on a CDC configuration , not against the converse is not true.

[Zecho]

A map is composed of a communication interface, a memory and a processor to perform calculations and process information. In addition to the memory and processor , a card with JavaCard technology contains an entire software package :

* Applets
* JavaCard Framework
* Business classes
* JavaCard Virtual Machine
* O.S and native functions

[opaper]

The security policy of Java , called sandbox , which prohibits any interaction between objects of different applets , has been modified and relaxed . Thus, JavaCard can share an object between different applets. Although a subset of Java , JavaCard has specific mechanisms related to the specificities of smart cards. Thus there are 2 types of objects : objects transients , stored in RAM and lose their value when the card withdrawal or a power failure, and persistent objects stored in EEPROM .

[Reegan]

JavaCard , although it is a subset of the Java language , has special mechanisms related to the specific SmartCard. Thus there are two types of objects: the temporary objects (stored in RAM , which take their values upon removal of the card, a power outage , the deselection of the applet or after each transaction) and persistent objects stored in EEPROM. JavaCard ensures the atomicity of transactions . It also allows sharing of objects between applets under certain conditions. The security lines are implemented by the virtual machine.

[KennedII]

JavaCard applications are called applets identified only by their AID (Application Identifier) isolated from each other by applets firewall . Several applets can coexist on a map even if they belong to different companies. card applets are handled by the JCRE . The minimum required to run a program JavaCard are 24 KB of ROM , 16KB of EEPROM and 1 Kbytes of RAM.