Code has been one of the most conspicuous keywords nowadays. As the development of technology and science, nothing can replace the role of code which people use to create so many colorful things to improve human’s life quality, from entertainment to industry production. As the core of computer science, when people talk about code, they talk about wisdom and creation. Code is not only a tool, but a key for everyone to open the doors and lead them to explore the unknown territory. People use code to write all kinds of programs and put them into electric devices or software such as cell phones, robots, drones and video games. Code has changed this world for five reasons: First, most technologies are made by code; Second, Code enhances economy; Third, code has been an irreplaceable part of education. Forth, human use code to achieve most advance entertainment product. Last, code can help people achieve individual success. 

World has been changed by code. It is not a joke, people spend most their time on App, software, website, game every day, and these things are all made by code.  "There's an app for that" is more than just Apple 's marketing mantra (Worcester, Mass). As the description from Amanda Soloway who is an innovation Manager at Intel Corporation, she starts her every day with App Sleep Cycle, and she uses Yahoo Weather to check the weather before she goes out, and then she checks Facebook and Outlook to make sure everything is in plan. Next, SoundCloud plays songs for her when she is on road. At later noon, she exercises follows the tutorials with work out App. App Calendar reminds her the meeting is coming soon, and she always goes to buy some food with Yelp after the long meetings. As she does, people play around different Apps every day because they can do everything with those effective Apps which have different functions. Johnson Khoom, the founder at Wowwwz, says that Apps can not only help people solve problem, such as Google Maps, Uber, Dropbox, but also provides entertainment, such as Flappy Bird, Angry Bird and Pokemon. App is just an example to show why code is creative, actually, there are much more stuff that made by code. People use code to write programs which make human’s life be much more effective and convenient. Code help human achieve efficient production lines which save so much labor and money to make the process of production be more effective and easy. Most Food and IT Companies use efficient production lines to produce their product. With this method, it will be easier for them to manage staff and make much more profit. Also, today, there are many different kinds of drone used in different field such as military detection and photography and videography making. Those drones’ brain are programs which written with code. What’s more, scientists are keeping using code to develop the advance rocket and space technology (Johnson Khoo). As people can see, from individual person to companies even to this world, code is everywhere and meaningful. 

Code pushes forward the development of economy. In Frederick Harris’s research article “Impact of Computing on the World Economy: A Position Paper,” the data shows how greatly that computing has enhanced the growth of economy in the past twenty years. “It is seen in this table that the capital deployment (including Information Technology and non-IT capital) contributed almost 50%, while the othe two major factors, labor contributed 20%-30%, and productivity contributed about 20-30% and 25%, respectively. The contribution of IT capital deployment almost doubled from 0.27% to 0.53% during these periods, while the impact of non-IT capital and labor to economic growth remained pretty much flat.” (Frederick Harris) As the result, computing gives incredible contribution to the growth of economy, and Alan S. Blinder and Richard E. Quant gives the answer that why and how computing has such amazing power. “Evidence for "productivity miracles" arising from the computer and from information technology (IT) in general appears to be all around us. Modern steel mills run virtually without labor. The New York Stock Exchange handles electronically a volume of transactions that was inconceivable in the pre-computer age. Businesses nowadays can compute and communicate far faster than they could, say, a decade or two ago. The improvements have indeed been prodigious. For example, if over the past thirty years or so automobile efficiency had increased as dramatically as computer efficiency has in some respects, you would now be able to drive your car coast to coast on about four milliliters of gasoline.” (The Computer and the Economy) They says, even some factory floors and the inventory-management are ameliorated by code and computing. It is amazing that there has no labor works in modern steel mills, and it is easy to understand how code is powerful and accurate. Code has enhanced many companies’ production speed, by writing programs with code, the developments of their businesses grow faster and faster. As the successes of these companies, their products sold well so that currency circulation becomes faster, and that is how code improves the economic. Also, “E-commerce and online-banking capabilities have also helped reduce the cost of doing business” (dol.gov), and these two processes are all operate based on code. According to Lylah Alphonse’s research, in BaltimoreIn, more and more young men and women start leaning code as their skills to find job, and it works well (Cracking the Code: How Computer Science Can Change Lives). The CEO of Baltimore-based nonprofit Digit All Systems Inc, Lance Lucas says, the main goal of education is employment. He told STEM Solutions attendees “In Baltimore, as few as three out of every 100 people are able to used code to escape poverty. We do consider it a war, poverty versus technology, and coding is one of the weapons in our utility belts." (Lance Lucas) Maybe, using code to work is the only legitimate job which can truly lift people out of poverty. In fact, there are several evidences which are more obvious to show how code enhances the economy, because code actually helps incalculable people get jobs. Rather than just writing code, there are much more platforms like Uber, Airbnb which made by code, they help people earn money individually with their resource, skills, or service. These kinds of softwares, Apps and websites contribute a lot to today’s employment status. Therefore, the global economy can never grow such fast without code and computing.

Coding education has been an irreplaceable part of the whole education field. "Connecting kids to what they see in their future is critical," as Betsy Hargrove says, who is superintendent of Avondale Elementary School District in Arizona, code is the key which will lead them to future success. According to Frederick Harris’s article “Impact of Computing on the World Economy: A Position Paper,” he says “One of the great impacts of computing will be in the areas of human learning and cognitive and logical inference activities that it can and will inevitably change the way we learn, work and live,” he points that more and more countries start paying more attention on computing education and many of them already invest a lot of money on buying equipment for schools and colleges. Also, in Yasmin B. Kafai’s article “Education From Computational Thinking to Computational Participation in K–12 Education”, she claims that “Computational participation provides new direction for programming in K–12 education. It moves us beyond tools and code to community and context. It equips designers, educators, and researchers to broaden and deepen computational thinking on a larger scale than previously. Users of digital technologies for functional, political, and personal purposes need a basic understanding of computing. Students must understand interfaces, technologies, and systems that they encounter daily. This will empower them and provides them with the tools to examine and question design decisions they encounter.” Learning code is a effective way that help develop children’s thinking and solving ability, while they are organizing and connecting those code together, their brain are being developed. She believes reading code is reading world, in her opinion, learning code is the most effective way for students to improve their understanding of computational thinking which is important for them to think about and solve problem in the future. Some people may argue that code is too difficult for children to understand and learn. Actually, the truth is that code is easy for all the beginners who are at any level of age. The video shows that a normal 10 years old boy is able to understand how make a complete simple program within 1 hour (Change The World - Hour of Code 2015, Code.org). As the conclusion, code has amazing contribution to children’s education. Maybe these are the reasons why former president Barack Obama said “Computer Science for all” in January 2016 (Lylah Alphonse, Cracking the Code: How Computer Science Can Change Lives).

 “In many ways entertainment is the religion of the 21st Century.” William Nicholls, an famous English clergyman and theologian says. It has happened in 21st Century. In order to enhance the quality of life, entertainment is one of the most important parts of human’s daily life. However, code actually contributes a lot for most today’s entertainment modes, especially for video games, which are super popular among the people in different ages. As the result of a research, more than 1 million American families are playing video games at any one moment (Nielsen Media). However, it is impossible to create a truly special and popular game without code writing today. The visual effect and graphic design are also important, but how advance is the code and program will determine the superior limit of the games. With C++ , Python, Visual Basic, Perl and some other tools, the creators are able to achieve many interactive design to enhance the player’s experience. For example, adding audio effects to each action of the characters, making the blooding effect while the characters die, collecting the items when the character touch them, and so on. With the different ways of organizing the code, the video games makers have the ability and opportunity to add more imagination and power to their games to make the games more entertaining and enjoyable ( Tim Crosby, How Making a Video Game Works). 

Besides video games, code also plays an irreplaceable role in other main entertainment modes. For example, previously, in order to change songs, people had to walk near to the CD player and pick another CD or hit the button on the walkman, but code nowadays changes the people’s way of listening music (Jennifer L. DeLeo, How Tech Has Changed Our Lives). With the program written by code, user can choose the playing mode from looping or random. Rather than that, they are able to add their favorite songs to the play list so that they do not have to skip the song over and over again. Even more, today, there are a lot of music software can help the user to discover the potential songs that they may like based on their previous searching and listening and all these function are programs written with code. Let alone how code is important in movie playing, ebook reading, and other fields. In one sentence, code changes human’s entertainment modes and enhances the quality of the user experience.

Code helps people achieve their own success. Hania Guiagoussou born in a poor family in Africa. She loved drawing when she was young and she never thought about learn computer and coding because she thought it was too hard to learn for her. One day, she first tried write code with her father’s guiding, and she created a simple program with her father’s help in two days. At the moment while she finished, she thought she was an artist because she can put all her thought into program and use code to show the people in the world. As she grew up, she never stopped learning code, and she had made a truly useful program for environment protecting field when she was a teenager. The program she made called “WaterSaver” which is a Java-based system can controls water input and output intelligently. She made this program based on California’s severe drought, and she used her software control the negative situation effectively. Because of her truly contribution of the environment protecting, she won 10,000 dollars and her success and experience attracted many newspaper, radio and TV interviews. Code makes her success. As what she said, writing code is not as hard as most people think about, it just need determination and passion, and it is the key to explore everyone’s hidden talent (Hania Guiagoussou, A Teenage Girl’s Journey to Change the World with Code). Hania’s experience tells every people in this world that no matter what they have now, no matter they think they are smart or not, writing code is the fast and easy way to change their bad situations and leads them to make their own success. She uses her real experience to prove that learning and writing code can make people get rid of poverty and achieve an make their value. In addition, what she said is still right today. The writer Lydia Dishman has explained how code is important for young men and women who are seeking great jobs. As she says, almost all the jobs needs the staff who has coding skills. Today, software engineer can easily find a job in IT companies, such as Apple, Amazon, Facebook, Web companies, advertising companies and even in hospital and automotive manufacturer. As the result of a research, there are 7 million jobs occupations are opening for the men and women who have code skills. Another result shows that, “They also found that programming jobs overall are growing 12% faster than the market average.” These jobs need the people who have the ability to understand and write code with Java, C++, HTML and such basic coding language. Therefore, even if it will not be too easy for someone to make huge success in short time, but having the ability of writing code at least can make him or her to get a good job. In conclusion, writing code could make or help people achieve their own success and lead them to make a better life.

However, there are still group of people who hate code and computer and even prevent other to learn code, especially for some parents. In the article “Giving Children Computers Basically Does the Opposite of What You Expect”, the author Jeff Guo claims that it is not right for children to learn code and computer, her thoughts and opinions represent the people who have same idea. She argues that computer make children and teenagers have bad performance in school and effects their mental health. Because children do not have enough self-control ability, it is too easy for them to be addicted to computer games and entertainment instead of learning and absorb knowledge. In addition, it is not safe for them if there is any unhealthy information or advertise jump out to the screen. Therefore, parents should keep their children away from computers. It is obviously that it is impossible for children to learn code if they cannot touch and use computer. Actually, there are a lot of ways for parents to prevent their children be addicted or spend more time on playing computer games. Supervising is helpful because the parents can not only make sure their children are not playing games but also close those bad unhealthy information directly. Besides, playing video games is not as bad as the parents think. As the research shows, playing video games can enhance children’s attention span and give them positive affirmation to improve their concentration, even for those children who has ADHD (Jennifer L. DeLeo, How Tech Has Changed Our Lives).

In conclusion, code has already changed the world and it will keep changing human’s living ways in daily life. It is necessary for people to learn coding in order to contribute the society, enhance the quality of human’s life or make their own success. Code will be the core of future, and it will make the world better.
