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Functions on SAT Math Linear, Quadratic, and Algebraic

Capacities on SAT Math Linear, Quadratic, and Algebraic SAT/ACT Prep Online Guides and Tips SAT capacities have the questionable respe...

Tuesday, October 29, 2019

Michigan history-Oldsmobile Research Paper Example | Topics and Well Written Essays - 250 words - 1

Michigan history-Oldsmobile - Research Paper Example In 1901, Oldsmobile got recognition in the United States as first car builder of the country that had sourced the components from external suppliers. Consequently, Ransom E. Old was began to be dubbed as the father of auto industry of America which Ransom had denied himself as he was out of country at that particular time (Mccleland). Later it was revealed that John De Lorean was the real father of auto industry of America who was executive engineer of General Motors and founder of John De Lorean Motors Company. Especially the matter related to assembly lines that were claimed to be made by General Motors. The trip taken in the Oldsmobile to attract buyers was also failed badly and the car was severely damaged (Michael). Ransom E. Olds died in 1950 and his last words also settle in the controversy as he said, â€Å"If Oldsmobile croak today, then Buicks a goner a week from Monday or "Pursue utes† (Phillips). As a consequence it can be inferred that Ransom E. Olds was not obviously the father of auto industry of the United States. In fact there were many other contributors of the industry including John De

Sunday, October 27, 2019

Features of Java Operating System

Features of Java Operating System Introduction: When 1st java card details were issued, the card chips where 8 bits with a few hundred of bytes of RAM and a few kilo bytes of EEPROM. These sever constraints led the java card forum and Sun to issue a had lots of limitations compared to standard java. This specification does not specify and operating system but an execution environment that most player in the smart card industry is able to implement on top of his own proprietary operating system. The silicon market evolution seems to indicate that next generation products will be based on much more powerful machines (32bits, 64bits, RISC, cache are becoming common in chip category) the smart card industry, through the java card forum, has clearly indentified this evolution and has started initiatives like the java card 3.0 details process that aim to define upcoming version of java card adapted nest era of hardware with this hardware evolution, java has also evolved a lot. It is more limited to the desktop environment and is now present in both the server market with J2EE and in the embedded system market with J2ME. This evolution brought interesting feature to the java platform process for running long lived application are popular on the server side and less java subset applicable to categories of devices has been defined with J2ME configuration. The purpose of this assignment is to have overview of what can be considered now as the less java feature that can be integrated to modern smart card hardware and how these features that can be integrated to modern smart card hardware and how these features can be turned into a card operating system that cope with the smart card industry particular constraint like big production, personalization post issuance. The reason for targeting an operating system instead of an additional software layer like its done in the computer world with standard JDK is to use java as the unique hardware abstraction for applications without intermediate levels to reduce the workload and increase the efficiency. Features of Java Operating System: The java platform defined in different techniques the java VM (Virtual Machine) specification and the java language specification. In the context of operating system these techniques are only relevant at the running environment level. The selection of the java Operating System features is guided by the classical needs of OS. The coding, linking, running engine and memory management for the performance. Class file of Java: The class file is Java define in the JVM (Java Virtual Machine) specification as delivery format for the code of classed to load into a Java VM. This format is considered to be verbose and not compact, but it has some other properties that provide a maximum flexibility both for the development and for the code application update. Other formats such as the Java card 2.x Cap file or the JEFF file format are focusing on reducing file size using the command and techniques like linking information removal or file structure reorganization. These techniques have good result in size reduction but induce deployment constraints depending on the degree of size reduction for example a Cap file can be ten percent size of the equivalent set of class files, but it requires an off card conversion step for the developer and to maintain off card a database of linking information to perform card pre linking which is painful work for deployment and card management. We argue that on card class file processing that provides the same reduction ration as the JEFF conversion fifty percent reduction. The process explaining more detail in figure below. Since the load link operation occurs only once in the life times on the class, we think that the development benefits brought by loading standard class files are worth the effort of loading the class file in its entirety and applying an on board conversion process that enable to store in card memory a structure equivalent to fifty percent of the original class file size. One of the main industrial profits of choosing the class file and defining you own conversion process is that it gives freedom for differentiation most of the card manufacture can choose an internal format adapted to his own particular constraints. Engine Multithreaded Execution: the java platform has native support for multithreaded and synchronization and even in the lowest configuration defined for the embedded system market like CLDC, this help to maintained the one may think that for embedded and resource constrained devices the Support for the multithreading may be too heavy to be reasonable, well there are lots of reason to have multithreading support in the core of very small java operating system. The core reason is that it enables to write power application framework on top of the Operating System, in java without needing complex native modifications of the Operating System and its happen when the SIM Toolkit application model has been explained in java card. There are also lots of classical reasons to use threads that are briefly described in the literature. In limited devices like smart cards, memory such as the Virtual Machine implements must be carefully choose an efficient and resource helping implementation of the multithreading support. The existence of java application only on the top of java operating system collaborating with native code and not with native application like in a desktop computer seems to support a green thread like implementation rather than a native thread implementation. Java Memory Management: One of the interesting feature of Java Virtual Machine (JVM) is the automatically garbage collected heap that is used to allocate java objects when they are created, letting the burden of moving, compacting, freeing the memory to the system instead of the developer. This interesting feature was lacking in the java card specification and give the developer of complex applications to developer their own memory management routines within the application code, which is written in java, this disadvantage of java card to behave as an Operating System. The programs shouldnt handle such sensitive task. There are several types of garbage collectors but the ones that seem the more appropriate to smart card like environments are generational collector. This type of collector are well adapted to server like long lived application which is typically the case of smart card program. Actually the memory manage for the object instances is separate from the memory management of system data like description, threads, code, classes, objects. This normally leading toward the complexity, bigger footprint of the memory management and static segmentation of the memory. We are experimenting an alternative to such a split organization that is to use unified object oriented memory management and static segmentation of the memory. We are experimenting an alternative to such a split organization that is to use a unified object oriented memory manager that both types of programs and system objects, in this case most of the things in the system is an object including java objects instances, loaded, code, classes and every object in the system is subject to garbage collection. This memory management leads to easy management code which is then hopefully smaller and more robust. Different Application Models: Most of the earlier feature of the Java Virtual Machine (JVM) describe above have common objective put in the Operating System the functionality that will make smaller and more efficient application. One great strength of java that was lost in java card and that we think must be reconsidered for next generation smart card Operating System is to be application model independent. The Java Virtual Machine (JVM) doesnt clarify a particular application model, but gives all the core features that are necessary to build various successful frameworks such as applets, serves or RMI Objects. Configurations: The smart card program and system designers and developers have considerations that are very similar to the people working in the mass production embedded system devices market. How to debugging fast/safely the Operating System and the programs, how to build quickly a product configuration, and how to decline and Operating System in product range to leverage the investment. There is more, the smart card industry has his own particularities like for instance the need for personalization of every issued card with the holder information. Development Issues: The use of java is in itself the beginning of a solution for some of these problems, because of the wide range of products freely or commercially available to help designers and developers. But the high safety exigency on smart card products implies that maximum effort must be made on any tools that would allow the developers to operate in an environment as close as possible to the actual device. Debugging the code while it runs. Issues: Product issue and other tools are help in the production and personalize phase of the cards. The ROM intervenes at the production step, to generate the code to mask into the chips ROM. It is complemented by the memory serialize which is used to build memory images saves in files. It will be sent to the card at initialization and personalize time to build the right memory structure that will put the card in the right state. Such tools are usually difficult to write and to maintain, but these tasks can be greatly simplified using the introspection capabilities provided by the unified object oriented memory management introduce above. Integrated Operating System: A solution to minimize the cost of these tools is to build an operating system that includes them from the beginning, in a configurable manner, and that can be declined from the same set of sources in different editions adapted to the targeted device. Such a configurable Operating System is illustrated in the following figure. Feature Categories Developer edition of the Operating System would include any developer features like an embedded debugging interface based on the JPDA standard, a shell based console to administer the Operating System load remove classes, create threads. Such a complete edition would of course run on computer and on emulator only not on real cards. Another declination would be the post issuance enabled edition that would be the high end embeddable version of the Operating System, targeted for high end cards with post issuance facilities with a loader linker. On the other eternity would be the minimal edition, targeted for low end cards, without any post issuance capabilities, that would have a much smaller footprint. Conclusion: In this assignment we have highlighted some features of an embedded java Operating System suitable for next generation smart cards considered as java micro server platforms. Three important java Operating System characteristic have been explained class file format acquisition, multithreaded support and unified memory management. Their implementation has been shown feasible and their usage and advantages has been explained in the context of configurable card platform architecture. Thanks to tools such shell console, debugger, ROMizer and Serialzier, the migration path from a rich platform configuration up to a customized platform configuration has been explained. The overall advantages of this embedded java Operating System architecture is its adaptability for being used, on one hand as full fledge java environment to quickly develop and test programs and on the another hand as an engineering environment for mass production of optimized embedded code hosted by limited devices. Though originally developed in the context smart cards, such architecture could be suitable in any embedded system device in which the java development platform can different from the final Java deployment platform. References: [1] The Java Card Virtual Machine specification 2.1.1. Sun Microsystems http://java.sun.com/products/javacard/ [2] Java 2 Micro Edition, Sun Microsystems http://java.sun.com/j2me/ [3] Java Virtual Machine Specification, Tim Lindholm, Frank Yellin. Sun Microsystems. http://java.sun.com/docs/books/vmspec/index.html [4] Java Language Specification, James Gosling, Bill Joy, Guy Steele, Gilad Bracha. Sun Microsystems. http://java.sun.com/docs/books/jls/index.html [5] The JEFF File Format, J-Consortium http://www.j-consortium.org/jeffwg/index.shtml [5] J2ME Connected Limited Device Configuration http://java.sun.com/products/cldc/ [6] Sim API for Java Card, ETSI TS 143 019 V5.2.0 (2002-03) http://www.etsi.org [7] Concurrent Programming in Java. D. Lea. Sun Microsystems, 1999. ISBN 0-201-31009-0, Addison-Wesley [8] Java Platform Debugger Architecture, Sun Microsystems, http://java.sun.com/j2se/1.3/docs/guide/jpda/index.html Master of Science BITE Innovative Technology 1

Friday, October 25, 2019

Comparing Different Types of Love in William Shakespeares Romeo and Ju

Comparing Different Types of Love in William Shakespeare's Romeo and Juliet The three different examples of love between Romeo and Juliet, Romeo and Rosaline and Paris and Juliet do share some similar aspects, but they also have their own differences. These three different types of love show us the variations of love and how it can mask itself into different forms. Romeo's 'love' for Rosaline. He was portrayed as a Petrarchan lover and his 'love' was simply an infatuation. He did not take time to know Rosaline or understand her, but thought that he truly loved her. In actual fact, he was only attracted to her because of her beauty; "The all-seeing sun/Ne'er saw her match since first the world begun." Romeo knows that Rosaline does not love him, that the relationship is not mutual. Romeo became depressed when he realised that Rosaline did not love him. He was moody and withdrawn. His use of oxymorons such as "bright smoke, cold fire, sick health" shows his uncertainty and confusion of this 'love' he has for Rosaline. Romeo's love for Rosaline is clearly infatuation, which really is not true love. Similarly, we question Paris' 'love' for Juliet. Did he really love her? His love for Juliet was not as straightforward. He did not even know Juliet, probably falling for her beauty rather that loving her for who she really was. It was probably superficial, but we cannot completely ignore his attempts to show 'love'. He risks his reputation as a noble by visiting Juliet's grave in the dead of the night so secretly and suspiciously. Also, when Romeo kills him he asks to be put in her tomb, "If thou be merciful, Open the tomb, lay me with .. ...d be one that was approved and acknowledged. Not like the one between Romeo and Juliet, where the choice to get wedded was based purely on their own decision and not one that was consulted with their own parents. Compared with Romeo's love for Rosaline, his best friends knew about it, Benvolio having found out when he spoke to Romeo, and probably telling Mercutio. It wasn't a total secret but was kept hidden from his parents. It is obvious that the love Romeo has for Juliet is true and deep, it is also reciprocated, unlike the one between Romeo and Rosaline, and Paris and Juliet. Also, the three relationships showed signs of hastiness and rashness, which resulted in a short-lived and rather brief relationship. However, the love did affect the characters in some way or other and had changed Romeo into a better person.

Thursday, October 24, 2019

Jean-Jacques Rousseau’s The Confessions: A Review Essay

In Confessions by Jean-Jacques Rousseau, Rousseau seeks to explain who he is by trying to paint layer by layer, a portrait of himself, without missing any details and having his end product being interpreted by his readers. Rousseau was born into a lower class family, part of the commons, in a childhood mixed with medieval and modern values and lifestyles. Rousseau was a product of a mother and father who married out of love, being born into a nuclear family rather than the traditional big family of the medieval times. His mother passed away at Rousseau’s birth and even though his father abandoned him at a young age, he still had a close relationship to Rousseau for he thought him how to read. As Rousseau grew older, he became independent and begun an apprenticeship as an engraver. In his confessions, he reveals an experience of being beaten at the age of 11 by a much-loved female nanny twice his age—and desiring to be beaten again, which he evaluates as being his admission into the world of adult sexuality. Rousseau does not agree with the medieval traditions of corporal punishment. He believes beating children will lead them to become mischievous, sneaky, and sexual deviances. Rousseau’s intended audience was made for the general public of Europe to read. He wanted to express his individualism and try to get his audience to know his true self. Rousseau also wanted the public to know all his secrets and love him regardless so he can establish the personal bonds which he describes were stripped by money, â€Å"the money you have gives you freedom. The money you pursue enslaves you†. Given that man contributes his mutual consent to money as a store of value in a society, Rousseau believes money has both positive and negative traits. He states that money is virtuous since it gives an individual independence but goes on to also state that money brings the disadvantage of breaking personal bonds. Moreover, the significance and effects of The Confessions reaches toward the emphasis of discipline and upbringing of children. Rousseau tells his audience how childhood experiences can carry psychologically into adulthood, especially in relation to the development of sexuality and deviance. The Confessions influenced society to change. Even though some members where not comfortable with this change Rousseau had regardless already brought upon the ideas which reformed the way of many individuals’ outlook and thinking towards their families, children, money, personal bonds, private properties, etc.

Wednesday, October 23, 2019

Fahrenheit 451 Son’s Book Report 9th Grade

Guy Montag, a fireman in the future who burns books, is the main character, and the story is told from his point of view. Mildred is Montag’s wife, who is depressed and watches television all day. Captain Beatty is Montag’s boss and becomes his enemy. Clarisse McClellan, Montag’s 17 year old neighbor, comes from an unconventional family and has a powerful effect on Montag. Professor Faber who is Montag’s friend that helps him by making a plan to reprint books. The Hound who is a mechanical dog that hunts down Montag after he disobeys the law. The events take place in an unnamed time in the future in an American city. There are several settings: the firehouse, Montag’s home, the city streets, and the forest outside the city. In this world, books are banned, and everyone’s lives are isolated from each other. Guy Montag is a fireman and his purpose is to burn books. One day Montag meets a young girl named Clarisse McClellan who helps him realize that his life is empty. When Clarisse dies, and his wife attempts suicide, Montag decides to read books. But in Montag’s world a person caught reading books has his house burned down. Then Montag goes back to work, and he is forced to burn down a house holding books with the owner inside. After that he seeks help from an English professor named Faber, and they make a plan to destroy the firemen and to preserve books by publishing them. Mildred tells the firemen about the books that Montag has been hiding, and he is forced to burn down his own house. When Beatty tries to arrest Montag, he runs away and is pursued by the police. After Montag escapes, he runs into group of people outside the city called â€Å"the Book People. † They hold memories of books they have read and are waiting for a chance to start a new world. I think this is a great book. Ray Bradbury was very descriptive and the story has a great plot, because it was suspenseful. I would recommend it to people because it made me think about the value of books.