Assignment 1

The advantages of Wireless LAN in the globalisation

 

 

 

            Wireless LAN is one of the most popular telecommunication systems in the world because it creates easy and flexible communication. On the other hand, it is a new technology that comes to the society not long time ago and has the standard IEEE 802.11 of Wireless system. It has an option like Wired network system. In addition, many countries use this system to connect between organizations such as companies, schools, the government offices, and hotels. It is very nice and modern for communication technology in this period like the digital generation. Although there are many advantages, but I will show only three main advantages that consist of Connection, Convenience, and Technology support as below.

             Firstly, it is very useful for connection both inside and outside the building. It uses ISM frequency to connect with communication devices on the network area because ISM frequency is appropriate for connection on Ethernet. Furthermore, it is usually used in the industrial, scientific, and medical fields. It is safe and suitable for the people. Besides, the area is not an obstacle for Wireless network because this system can transmit the signal cover 5 kilometers. Therefore, it is a popular communication in big cities especially in the Metropolis such as Bangkok, Tokyo, Shanghai,   Berlin and other cities. In the future, it will expand to other communities and the people will know more about Wireless network.

             Secondly, it is very convenient for everyone. The people can use Wireless network in every place and situation. For example, you can use wireless while on the bus. And you can use wireless network at some places when you do not stay at the office or at home. It will help you if you want to contact with other people in rush hours. By the way, it is not connected only from computer to computer but connected between other hardware to computer too such as hub, switch, and mouse. It does not use many accessories to connect with the device in the network area.

              Thirdly, it has a new technology to support on many devices. You can observe from digital equipments such as camera, mobile phone, palm, and electrical devices. These devices were designed and has been added more features to support Wireless technology. Moreover, this system can be used for security and commercial. For security, it is used to check and detect something wrong that happened in the network area. In the part of commercial, it helps many businessmen to connect their organization directly and doesn’t waste time to connect with people. It is a good way for people who would like quick time to communicate and do many jobs in open office.

              From these three main advantages, it can show the capability and performance of Wireless LAN. In my opinion, this system will grow more than the past and many people will use it more. However, there are some mistakes in this system. For instance, this system has very bad signal when the climate is changing such as rain, storm, and snow. Moreover, there is interference from other digital devices that have the same frequency or bandwidth. Therefore, the signal will disappear from those situations. Lastly, I believe that if we know how to use and mange this system, then it is a good way for us to communicate with each other and very helpful in the global network. Unfortunately, it can make some problems too if we do not know how to use it. Therefore, we should learn about Wireless network and use it in a correct way.     

Mr.Anirut  Kantasa-ard 49270350

 

 

Assignment 6

Oracle database and DB2

            At the present time, many organizations use database software to store and manage data in the office because this software is appropriate and easy to collect a lot of data especially business data and commerce data. Moreover, most companies create databases with this software via the internet. By the way, database software has many different types to choose from such as MS SQL, MS Access, Sybase, and others. Each application is suitable for different jobs. For example, MySQL database is suitable for collecting and managing databases on the web. In this essay, I will suggest two popular database applications that we use in big companies and store large data. There are Oracle database and DB2.

            Firstly, Oracle database is good software for the companies. It consists of a relational database management system or RDBMS and supports with many operating platforms such as Linux and Windows. Besides, it can create applications on database that follow user requirements such as accounting system, hotel booking system, and dormitory system. This software is easy to use and not complicated because it was designed for everyone. Therefore, most organizations use it to manage data in their office. Furthermore, it has many versions to choose from such as Oracle 10g, and Oracle 11G. It can connect with PHP language via the website. At the same time, many people know more about this database software than people in the past.

            Next, DB2 is one of the popular database software that is used in organizations. It consists of a relational database management system like Oracle database. In addition, it supports with many operating platforms such as Linux, Unix, and Window particularly in Z/os. DB2 can process data with ODBC(Microsoft), JDBC(java database), and CORBA and add data by using XML language. Most banks use DB2 to store and manage data via a mainframe. Therefore, DB2 is an interesting database application at this time.

            From both of Oracle and DB2, they are very similar and popular database software. When we compare Oracle and DB2, we can observe they both have the similar and different features. For the similar feature, they are free software and query data by using SQL language. Moreover, Oracle and DB2 can support many platforms such as Linux, Unix, and Window and were written with C language. Although Oracle and DB2 are beneficial and appropriate for collecting data in a big organization, they have some differences in the software. Firstly, they are from different companies. Oracle is from Oracle Corporation but DB2 is from IBM Company. Secondly, Oracle is available to multiple human languages but DB2 is available only English. Thirdly, Oracle can query data by using PL/SQL structure but DB2 cannot use it. Lastly, DB2 is smaller size than Oracle.

            Finally, Oracle and DB2 are popular database software both governments and private organizations. I think each application is appropriate for different jobs and users. If someone likes Oracle database, he or she can use it to manage his or her data. I have used Oracle database to collect and create data in organization. So, I like Oracle database very much because it was easier and less complex to create data. On the other hand, users should choose the database software for appropriate for their job.

Anirut Kantasa-ard  49270350                  

Assignment_5

The Level of Programming Language

            Programming language is one of major parts of computer science because the most computer systems use the process of the programming language to build the structure of the applications. Moreover, each language is appropriate for each application. For instance, Java language is suitable for Object-Oriented applications and PHP is suitable for Web applications. However, many programming languages have different levels and structures. The three languages are Low level, Medium level, and High level following as below.

            Firstly, there is the low level of programming languages. The concept of low level’s language is how to make the machine understand the instructions. It also called as “Machine-oriented language”. Most languages of this level are similar to the machine language because the low level’s language has the structure and syntax the same as machine processing. An example of this level is “Assembly language,” which uses the English alphabet to encode the command and translate by “Assembler” into machine language. For example, if we would like to combine numbers together then we use the “ADD” command to encode and translate in a machine. However, the languages at this level is not popular at this time because it is difficult to use and hard to understand in its structure. This language will use to control the processing in machine.

            Next, there is the medium level of programming languages. The languages at this level are easier than the languages at low level because it uses more English words to build commands and has the structure similar the language in high level. Another name of this level is “Structure language.” So, it does not complicate how to encode and translate language to the machine. On the other hand, the language at this level has the same speed of processing as the low level’s language. Many people usually use languages at this level, too. An example of this level is C, Pascal, and COBOL language.      

            Lastly, there is the high level of programming languages. The languages in this level use more English words and sentences that we call a “statement” to encode and translate language into machines. Besides, the language at this level is like the human language. Therefore, it is not complex to build an application or the object-oriented program. The language at this level uses an “Interpreter” to translate single command and a “Compiler” to translate multiple commands in machine. An example of this level is C++, Java, and Visual Basic language.

            In conclusion, the programming language has many levels that are appropriate with each application. I think every programming language is important for each operating system because it is the main part of the application. Furthermore, many languages help us to create different applications that are beneficial for business organization such as Calculator, Mind mapping, and Web application. If we don’t have programming languages to build a program, we may not have good tools to help us to do the activities in computer. I believe that programming language will develop the structure to be better and easier to understand than the past.

Anirut Kantasa-ard  49270350          

Assignment_4

Making Good Decisions by Fuzzy Logic

            Fuzzy Logic is a new branch of mathematic which is used in Information Technology. It is a tool to make your decisions better because this algorithm has the ideas and logics as human thinking. Moreover, this algorithm can help you to analyze and decide in many situations especially uncertain and inaccurate situations. Therefore, Fuzzy Logic is a benefit for human decisions. In this essay, I will show three main examples that use Fuzzy Logic to analyze and solve the problems in the real world. They are job matching, making business decision, and measuring the stage of life.

            The first example is job matching. Every people have different personality and attitude. For instance, the people who have good skills in communication should do a service or sell job. Moreover, some people don’t like their careers after they choose them. So, they should have a good tool to make a better decision. Fuzzy Logic is an appropriate tool to help them because it can help you to think and choose the best choice for your life. On the other hand, this algorithm uses the process base on human brains and measures the result in the part of qualitative more than quantitative. In this case, it will match each job by using each characteristic and attitude following the process. Therefore, we can believe that the Fuzzy Logic is one of the suitable algorithms to make your decision true.

            Another example is making business decisions. At the present time, many business processes use skills to analyze what are good points or mistakes in some processes. In addition, these processes should be accurate and correct because there are important keys to make decision for the people doing the next step on the business processes. So, we should have a good tool to help you to do our business successfully. Fuzzy Logic can help you to analyze the risks of each business choice. We use it to find and present the best result by using the linguistic variables, which explain the meaning of each process clearly.

            The last example is measuring the stage of life. In our society, we can separate the ages of people into four main periods such as childhood, adulthood, midlives, and old age. However, we may have some mistakes from measuring and analyzing the ages of people in the big areas because we can’t control the size of them. Consequently, we should keep the Fuzzy Logic to measure and distinguish the appropriate stage of life. For example, the stage of ages between 12 to 18 years old can measure and consider being both child and youth. Besides, Fuzzy Logic is a good tool to measure the stage of life, too. 

In conclusion, Fuzzy Logic is one of the best ways to make your decisions more accurate than other algorithms because this algorithm uses the process as human thinking and predicts the future following the flexible situation. On the other hand, this algorithm shows the examples of being use the Fuzzy Logic. This is a good idea to make you more understand the concept of Fuzzy Logic.

 

Anirut  Kantasa-ard  49270350              

                                                                                                       

Assignment 3

The story of PHP language

            Nowadays, a website is one of the most important applications in the globalization because it is a good media to communicate and guide between organizations and people. Moreover, many websites are developed in many ways such as graphic interface, latest features, and new technology. On the other hand, one of the most popular functions on the website in this period is an e-commerce via internet. We can observe that many shops should sell their goods on the website such as E-Bay, Reader Dijet, and Herbal life. However, we have many kinds of appropriate language to do the modern websites on internet such as ASP, JSP, VB.net, and HTML. Besides, we have another language that is suitable for doing the web application. This language is PHP. In this essay, we will know the meaning, the instruction, and the advantages of PHP better than the past.

            PHP is an abbreviation from “Personal Home Page Tool.” It is a script language on server-side. Then every command is collected in script files the same as JavaScript and Perl. This language was built in 1994 by Mr.Rasmus Lerdorf. He developed this language from C language then the feature of PHP is like C language, too. The characteristic of PHP is different from other script’s language because PHP is designed for doing the web application on HTML language and attaching or improving the content on the website via the database server automatically. Therefore, it’s called HTML-embedded scripting language. Furthermore, this language has an important tool to make the feature in Dynamic HTML efficiently.

            By the way, PHP has been developed from the Open Source group. Therefore, it should grow faster and support other web servers especially the Apache Web Server on Linux and FreeBSD. Moreover, PHP is supported to the web server on Windows operating systems such as Windows 95, Windows 98, Windows Me and etc. Despite the fact that PHP is supported in many Operating systems, it is different on the part of the web server. So, we should check if the web server can use the PHP script or not because each web server has different feature to compile and run the script languages. For example, PHP is appropriate with the Apache Web Server and the Personal Web Server (PWP) on Window operating systems. For the Apache Web Server, we can use PHP both two versions, CGI and Apache Module. These versions are not quite different but Apache Module is better than CGI because it can run automatically with PHP and be used easily with the internal feature.

            There are many advantages of PHP language but I will describe only three main topics. Firstly, it is a freeware application because users can download from the related website everywhere and don’t have to pay for downloading this application. Secondly, it is easy to use on the web server because PHP is combined with HTML language and the structure is not complicated. So, it is easier to learn and understand how to process and compile the website by using this language. Lastly, it is more efficient and modern when it is used on the web server particularly using on Apache server. Moreover, it can be used with XML language, image processing, database server, and array structure.

            In conclusion, I think this language is appropriate and interesting to make the web application because the structure is not complex and it is easy to understand the working process on the script language. Besides, we can download PHP language from related websites. In the future, this language will be developed in the Object-Oriented program such as the graphic interface. I hope that PHP will be useful for web masters and popular in the web application language.

 

Anirut  Kantasa-ard  49270350                 

           

            

Assignment 2

Ada Byron:  Lady of the Digital era

At the present time, a technology of computer is modern and interesting in the globalization more than the past because of the growth of society and the development of communication in the world. Then a computer is one of the most important things in people’s life. This machine has 2 parts that consists of hardware and software. However, many people could know and learn about the software more than the hardware because we are a general user and manage only essential applications in our computers. On the other hand, we don’t know much about the origin and history of the application and the software. For instance, we don’t know how to make a good application from the old theory. From these reasons, we should know the profile of the person who is a mathematician in the first generation of the world. Her ideas were given to improve and develop the software in the present. Her name is “Ada Byron.” Moreover, we will know more about her life, research, and evolution ideas.

Ada Byron is the first programmer of the world. She was born on 10 December, 1815 in London, England. Her father’s name is Lord Byron and her mother’s name is Anabel Milban. Besides, her mother was a famous mathematician in that era. After her parents divorced, she stayed with her mother all the time. Moreover, she learned more sciences and mathematics such as algebra, logic and calculus from her mother. Therefore, she liked mathematics very much. Despite the fact that her mother tried to train her to know more in mathematics, she still liked and interested in poetry like her father too. When she was 17 years old, she had a chance to meet Mrs. Somerville who is a genius lady of Cambridge at the party in London. She had translated the Laplace‘s thesis in English version. Furthermore, Ada met Charl Babbage at the first time in this party, too. Once a day, Ada had a chance to talk with him about how to make a calculator had more efficient to react and do many things more than the past. She was interested in his project very much. Then, she tried to help him in the part of programming and built the language for the Babbage’s analytical engine. In addition, she always tried to learn and search about mathematical programs for the analytical engine and improved it better.

During the time she was alive; she had a chance to talk with Charl Babbage about how to calculate the mechanical engine. He has the ideas about how to build a good machine to calculate the result correctly and accurately. From this reason, Ada had a good impression in his ideas and tried to follow his working all the time. During a period in 1843, Ada translated Babbage’s thesis in French language. After that, she gave the notes to him for checking and considering. Babbage suggested her to add more features and ideas in his project. When she finished it, the notes were longer than the old version and included in complete detail for calculating Bernoulli numbers with the engine. Moreover, she predicted the capability of this engine in other factors such as graphical, musical, and scientific and presented her technique about how to do a good program in the engine by using a loop and subroutine in application. These techniques will help you to write good software and decrease the mistakes from errors in the longer coding. We can observe that her ideas are the important ways to develop the software in the present.

Ada died at the age of thirty-six on 27 November, 1852 with uterine cancer and bloodletting by her physicians. She was interested in many things in her life such as music, jockey, and calculator engine. She is beautiful and charming to every people around her. Therefore, most scientists know her well including the people who were interested in computer. Over one hundred years after her death in 1979, the Ministry of Defense wrote a computer language as follow the ISO standard and gave the name for this language is “ADA.” Even though she doesn’t stay alive in the world, the people will remember her in their hearts and keep her ideas to develop and apply the software.

In conclusion, if we don’t have a good programmer in the past, we may not have a chance to learn and know the computer languages. In my opinion, programming is one of the important parts in computer because it will control every hardware and operating systems in our computer. Besides, the logic idea is a basic of good programming and helps to analyze the process of application the same as Ada’s ideas.

 

Mr. Anirut  Kantasa-ard  49270350                                   

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