Introduction to the World of Computers--计算机世界简介课件
电脑的介绍英语作文
电脑的介绍英语作文Computers have revolutionized the way we live and work. They are an integral part of our daily lives, from personal use to professional applications. Here's an introduction to computers in an English composition:The Evolution of ComputersIn the modern era, the computer has become an indispensable tool for communication, education, and business. The journey of the computer began with the invention of the abacus, an ancient calculating device, which was later replaced by mechanical calculators. The first electronic computer, the ENIAC, was developed in the 1940s, marking the beginning of the digital age.Types of ComputersThere are various types of computers, each designed for specific purposes. Personal computers (PCs) are designed for individual use and are commonly found in homes and small businesses. Laptops offer portability, making them ideal for travel and on-the-go computing. Servers are powerful computers that manage networks and store data. Supercomputers are the most powerful and are used for complex calculations and simulations.Components of a ComputerA computer system consists of several key components. The central processing unit (CPU) is the brain of the computer, executing instructions and performing calculations. The memory (RAM) stores data temporarily during operation.Storage devices, such as hard drives and solid-state drives (SSDs), hold data and programs. The motherboard connects all the components and provides the platform for expansion. Input devices like keyboards and mice allow users to interact with the computer, while monitors and printers are output devices that display and print information.Software and Operating SystemsSoftware is the set of instructions that tell the computer what to do. Operating systems, such as Windows, macOS, and Linux, manage the computer's resources and provide a user interface. Applications, or apps, are programs designed for specific tasks, like word processing, web browsing, or gaming.Networking and the InternetComputers have transformed the way we communicate through networking. Local Area Networks (LANs) connect computerswithin a building or campus, while the Internet connects computers worldwide. The Internet has become a platform for social interaction, commerce, and the sharing of information.Security and PrivacyWith the increasing reliance on computers, security and privacy have become critical issues. Viruses, malware, and hacking are threats that can compromise data and systems. Antivirus software, firewalls, and secure coding practices are essential to protect against these threats.Future of ComputingThe future of computing is promising, with advancements in artificial intelligence, quantum computing, and the Internet of Things (IoT). These technologies are set to make computers even more powerful and integrated into every aspect of our lives.In conclusion, computers have come a long way since their inception. They are now an essential part of our society, driving innovation and shaping the future. Understanding the basics of computers is crucial for anyone looking to navigate the digital world effectively.This composition provides a comprehensive overview of computers, touching on their history, types, components, software, networking capabilities, security concerns, and future prospects.。
英语作文介绍计算机
英语作文介绍计算机Title: Exploring the Wonders of Computers。
Computers have become an indispensable part of ourdaily lives, revolutionizing the way we communicate, work, learn, and entertain ourselves. In this essay, we willdelve into the fascinating world of computers, exploring their history, components, functions, and impacts on society.First and foremost, let's journey back in time to understand the origins of computers. The concept of a programmable computing device dates back to ancient times, with early examples such as the abacus and the Antikythera mechanism. However, it was not until the 20th century that modern computers began to take shape. The invention of the electronic computer is often attributed to pioneers such as Alan Turing, John von Neumann, and Charles Babbage, whose groundbreaking work laid the foundation for the digital age.At the heart of every computer lies its hardware components. These include the central processing unit (CPU), which serves as the brain of the computer, processing instructions and performing calculations; memory modules, such as RAM and ROM, which store data and programs temporarily or permanently; storage devices, such as hard disk drives and solid-state drives, which retain data even when the power is turned off; input devices, like keyboards and mice, which allow users to interact with the computer; and output devices, such as monitors and printers, which display information and produce tangible results.In addition to hardware, computers rely on software to perform tasks and execute commands. Software can be broadly categorized into two types: system software and application software. System software includes operating systems like Windows, macOS, and Linux, which manage the computer's hardware resources and provide a platform for running other software. Application software, on the other hand, consists of programs designed to perform specific tasks, such asword processing, web browsing, graphic design, and gaming.One of the most remarkable features of computers istheir versatility and programmability. Unlike traditional machines, which perform a single predefined function, computers can be programmed to perform a wide range of tasks, from simple calculations to complex simulations.This flexibility has led to the development of various programming languages, such as Python, Java, C++, and JavaScript, each tailored to different purposes and preferences.The impact of computers on society cannot be overstated. They have revolutionized countless industries, from healthcare and education to finance and entertainment. In healthcare, computers aid in diagnosis, treatment planning, and medical research, leading to improved patient outcomes and faster advancements in the field. In education, computers facilitate distance learning, interactive tutorials, and personalized instruction, making education more accessible and engaging for learners of all ages. In finance, computers enable real-time trading, risk analysis, and algorithmic trading, driving innovation and efficiencyin the financial markets. In entertainment, computers powerimmersive gaming experiences, virtual reality simulations, and digital content creation, reshaping the way we play, create, and consume media.However, along with their many benefits, computers also raise concerns about privacy, security, and digital divide. The widespread use of computers and the internet has led to an unprecedented amount of personal data being collected, stored, and analyzed, raising questions about individual privacy and data protection. Moreover, the interconnected nature of computer networks makes them vulnerable to cyber attacks, malware infections, and data breaches, posing threats to both individuals and organizations. Additionally, the digital divide persists, with disparities in access to computers and the internet between different regions, socioeconomic groups, and demographics, exacerbating inequalities and limiting opportunities for those left behind.In conclusion, computers have profoundly transformedour world, shaping the way we work, communicate, and live. From their humble beginnings as mechanical calculators totheir present-day ubiquity as powerful digital machines, computers continue to evolve and innovate, driving progress and shaping the future of humanity. As we navigate the complexities of the digital age, it is essential to harness the potential of computers responsibly, ensuring that they serve the common good and empower individuals and communities worldwide.。
电脑用途的英语作文
Computers have become an integral part of our daily lives,transforming the way we work,learn,and communicate.Here is an essay on the various uses of computers in English:Title:The Multifaceted Uses of ComputersIntroduction:In the modern world,computers are indispensable tools that have revolutionized various aspects of our lives.From personal use to professional applications,computers have proven to be versatile machines with a wide range of purposes.Body:munication:One of the most significant uses of computers is in communication.Email,instant messaging,and social media platforms enable people to connect with friends,family,and colleagues across the globe.Video conferencing tools,such as Zoom and Skype,have made remote meetings and virtual collaboration possible,even during the COVID19 pandemic.cation:Computers have transformed the educational landscape by providing access to a wealth of information and resources.Online courses,ebooks,and educational software have made learning more accessible and interactive.Students can now research topics, collaborate on projects,and submit assignments electronically,making the learning process more efficient.3.Entertainment:Computers have revolutionized the entertainment industry,offering a variety of options for users.From streaming movies and music to playing video games,computers provide endless entertainment possibilities.They have also given rise to new forms of media, such as podcasts and online videos,which have become popular sources of content.4.Business and Productivity:In the business world,computers play a crucial role in managing operations,automating tasks,and improving efficiency.They are used for tasks such as data analysis,inventory management,and customer relationship management.Additionally,productivity software like Microsoft Office allows professionals to create documents,spreadsheets,and presentations with ease.5.Research and Development:Computers have become essential tools for researchers and scientists.They enable complex calculations,simulations,and data analysis,which are vital for scientific advancements.In fields such as medicine,engineering,and environmental science, computers have contributed to breakthroughs and innovations.6.Creative Expression:For artists and designers,computers offer a digital canvas to create and edit various forms of art.Graphic design software,3D modeling tools,and digital illustration programs allow creators to bring their ideas to life.Musicians can also use computers to compose, record,and produce music using digital audio workstations.7.Ecommerce and Online Shopping:The rise of ecommerce has made shopping more convenient than puters enable users to browse products,compare prices,and make purchases online.This has led to the growth of online marketplaces and the expansion of businesses beyond traditional brickandmortar stores.Conclusion:In conclusion,computers have a myriad of uses that extend beyond simple data processing.They have become essential tools for communication,education, entertainment,business,research,creative expression,and ecommerce.As technology continues to advance,it is likely that the applications of computers will only continue to grow and evolve,further shaping our world in unprecedented ways.。
英语宣传电脑海报作文
英语宣传电脑海报作文Title: Unleash the Power of Computing: A Captivating Computer Poster。
Introduction:Welcome to the world of computing, where endless possibilities unfold with every keystroke. In this digital age, computers have become indispensable tools, revolutionizing the way we live, work, and communicate. Through this captivating computer poster, we embark on a journey to explore the boundless opportunities that computing offers.Section 1: Embrace Innovation。
Computing is the driving force behind innovation in today's rapidly evolving world. From artificial intelligence to virtual reality, computers empower us to push the boundaries of what is possible. Through thisposter, we celebrate the spirit of innovation and encourage viewers to embrace the endless possibilities that computing presents.Section 2: Connect Globally。
简要介绍计算机的英语作文
简要介绍计算机的英语作文Introduction to Computers。
Computers are electronic devices that can accept and store data, process it into useful information, and output the results. They have become an essential part of ourdaily lives and are used in many different fields, such as education, business, entertainment, and communication.Computers are made up of hardware and software components. The hardware includes the physical parts of the computer, such as the central processing unit (CPU), memory, storage devices, input devices (such as a keyboard and mouse), and output devices (such as a monitor and printer). The software includes the programs and applications thatrun on the computer, such as operating systems, word processors, and web browsers.The development of computers can be traced back to the 19th century, when Charles Babbage designed the firstmechanical computer. However, it wasn't until the mid-20th century that electronic computers were invented, and they quickly became more powerful and efficient. The first personal computer (PC) was introduced in the 1970s, and since then, computers have become smaller, faster, and more affordable.Computers have many advantages, such as their speed and accuracy in processing data, their ability to store large amounts of information, and their versatility in performing different tasks. They have revolutionized the way we work, communicate, and learn, and have opened up newopportunities for innovation and creativity.However, computers also have some disadvantages, such as their potential to cause addiction and social isolation, their vulnerability to viruses and hacking, and their impact on the environment due to electronic waste and energy consumption.In conclusion, computers are powerful tools that have transformed the way we live and work. They have bothadvantages and disadvantages, and it is important to use them responsibly and ethically. As technology continues to evolve, it is likely that computers will become even more integrated into our daily lives, and it is up to us to ensure that they are used for the greater good.。
计算机在社会发展中的作用英语作文
计算机在社会发展中的作用英语作文全文共3篇示例，供读者参考篇1The Role of Computers in Social DevelopmentIntroductionWith the rapid advancement of technology, computers have become an essential part of our daily lives. They have significantly impacted various aspects of society, including education, healthcare, business, and communication. In this essay, we will explore the role of computers in social development and discuss their importance in shaping the modern world.EducationComputers have revolutionized the way we learn and acquire knowledge. They provide students with access to a wealth of information online, allowing them to conduct research and study at their own pace. In addition, educational software and online courses have made learning more interactive and engaging. Computers have also transformed the way teachers instruct their students, enabling them to create multimediapresentations and interactive lessons that cater to different learning styles. Overall, computers have greatly enhanced the quality and accessibility of education, leveling the playing field for students of all backgrounds.HealthcareIn the field of healthcare, computers have streamlined processes and improved patient care. Electronic health records have made it easier for healthcare providers to access and update patient information, leading to more coordinated and efficient care. Medical imaging technology, such as MRIs and CT scans, have also become indispensable tools for diagnosing and treating diseases. With the help of computers, doctors can now perform complex surgeries with greater precision and accuracy. Telemedicine, which allows patients to consult with healthcare providers remotely, has become increasingly popular, especially in rural areas where access to healthcare is limited. In short, computers have played a crucial role in advancing medical technology and improving healthcare outcomes.BusinessComputers have revolutionized the way businesses operate and compete in today's global economy. They have automated repetitive tasks, such as data entry and inventory management,freeing up employees to focus on more strategic initiatives. Online shopping and e-commerce platforms have opened up new opportunities for businesses to reach customers worldwide. Social media and digital marketing have transformed the way companies advertise and engage with consumers. Moreover, data analytics and artificial intelligence have enabled businesses to gain valuable insights into customer behavior and market trends, helping them make informed decisions and stay ahead of the competition. In essence, computers have become indispensable tools for businesses to innovate, grow, and succeed in a rapidly changing marketplace.CommunicationComputers have revolutionized the way we communicate and connect with others. The internet has made it possible for people to communicate instantly and virtually, regardless of geographical boundaries. Social media platforms, such as Facebook and Twitter, have transformed the way we share information, express ourselves, and build communities online. Video conferencing and messaging apps have made it easier for people to stay in touch with family and friends, even when separated by long distances. Online forums and discussion groups have created spaces for people to exchange ideas, seeksupport, and collaborate on projects. In essence, computers have facilitated a new era of communication that is faster, more diverse, and more inclusive than ever before.ConclusionIn conclusion, computers have had a profound impact on social development, shaping the way we learn, work, communicate, and interact with the world around us. They have revolutionized education, healthcare, business, and communication, making processes more efficient, accessible, and interconnected. As technology continues to evolve, the role of computers in society will only become more prominent, driving further innovation and progress in the years to come. Ultimately, computers have become indispensable tools for social development, empowering individuals and communities to thrive in a rapidly changing world.篇2The Role of Computers in Social DevelopmentIntroductionIn the modern digital age, computers play an indispensable role in various facets of society. From education and healthcare to business and entertainment, computers have revolutionizedthe way we live and work. This essay aims to explore the significance of computers in social development and the myriad ways in which they have positively impacted our lives.EducationIn the field of education, computers have transformed the way students learn and teachers teach. With the advent ofe-learning platforms and digital textbooks, students now have access to a wealth of educational resources at their fingertips. Online courses and virtual classrooms also make education more accessible to those in remote areas or with special needs. Additionally, educational software and apps can help students improve their academic performance and develop critical thinking skills.HealthcareComputers have also made significant advancements in the healthcare industry. Electronic medical records allow healthcare providers to access patient information quickly and efficiently, improving the quality of care. Computer-aided diagnosis systems can help doctors make more accurate diagnoses, leading to better treatment outcomes. Telemedicine services enable patients to consult with healthcare professionalsremotely, reducing the burden on healthcare facilities and increasing access to medical care.BusinessIn the business sector, computers have revolutionized the way companies operate and communicate. From online marketing and e-commerce to data analysis and inventory management, computers streamline business processes and increase efficiency. Cloud computing services enable businesses to store and access data securely from anywhere in the world, facilitating collaboration among teams and promoting innovation. Artificial intelligence and machine learning technologies also help businesses predict trends, automate tasks, and improve decision-making.EntertainmentComputers have transformed the entertainment industry, providing endless opportunities for creativity and expression. Video games, virtual reality experiences, and streaming platforms offer entertainment options for people of all ages and interests. Social media platforms connect people from around the world, allowing them to share experiences, collaborate on projects, and build online communities. Digital art and musicproduction tools empower artists to create and distribute their work easily, reaching a wider audience than ever before.Challenges and OpportunitiesWhile computers have undoubtedly brought about numerous benefits to society, they also pose challenges that must be addressed. Issues such as data privacy, cybersecurity, and digital divide must be tackled to ensure that the benefits of technology are accessible to all. Additionally, as computers become more advanced, ethical considerations surrounding artificial intelligence, automation, and the impact of technology on jobs and human interaction must be carefully considered.ConclusionIn conclusion, computers have become an integral part of social development, driving innovation, efficiency, and connectivity across various industries. The role of computers in society will only continue to grow as technology advances and new opportunities emerge. By harnessing the power of computers responsibly and ethically, we can leverage their capabilities to create a more inclusive, sustainable, and prosperous future for all.篇3The Role of Computers in Social DevelopmentIn today's rapidly advancing society, computers play an integral role in transforming and shaping various aspects of our daily lives. From communication to education, business, entertainment, and beyond, computers have become an essential tool for enhancing efficiency, productivity, and connectivity. This essay will explore the significant impact of computers on social development and how they have revolutionized the way we live and interact with one another.One of the most prominent ways in which computers have influenced social development is through communication. With the advent of the internet and social media platforms, people can now connect with one another instantaneously, regardless of their geographical location. This has facilitated the exchange of ideas, information, and resources on a global scale, fostering greater collaboration and understanding among individuals from diverse backgrounds. Moreover, the rise of email, messaging apps, and video conferencing has revolutionized the way we communicate, making it easier and more convenient to stay in touch with friends, family, and colleagues.In the field of education, computers have revolutionized the way students learn and teachers teach. From online courses anddigital textbooks to interactive educational games and simulations, technology has transformed the classroom into a dynamic and engaging environment that caters to diverse learning styles. Computers also provide students with access to a wealth of information and resources, allowing them to conduct research, complete assignments, and collaborate with peers more effectively. Furthermore, educational software and tools can personalize learning experiences, enabling students to progress at their own pace and develop critical thinking, problem-solving, and digital literacy skills.In the business world, computers have become indispensable tools for enhancing efficiency, productivity, and innovation. From managing inventory and processing transactions to conducting market research and analyzing data, technology enables companies to streamline operations, optimize resources, and make informed decisions. Moreover, the internet has opened up new opportunities for businesses to reach a global audience, expand their market presence, and connect with customers through e-commerce platforms, social media marketing, and online advertising. As a result, businesses can operate more competitively and adapt more quickly to changing market trends and consumer demands.In the realm of entertainment, computers have revolutionized the way we consume and create media. Streaming services, online gaming platforms, and social networking sites offer a vast array of content and interactive experiences that entertain and engage audiences of all ages. Additionally, computer-generated imagery (CGI) and virtual reality technology have transformed the film, television, and gaming industries, enabling creators to craft immersive and visually stunning worlds that captivate viewers and players. Furthermore, social media influencers and content creators can leverage digital platforms to share their talents and ideas with a global audience, building communities and engaging fans in new and innovative ways.In conclusion, computers play a vital role in social development by enhancing communication, education, business, and entertainment. As technology continues to evolve and advance, the impact of computers on our society will only continue to grow, shaping the way we live, work, and interact with one another. By embracing the possibilities and opportunities that technology offers, we can harness its power to create a more connected, informed, and prosperous world for future generations.。
计算机简要介绍英语作文
计算机简要介绍英语作文Introduction to Computers。
Computers have become an integral part of our daily lives. From the moment we wake up to the time we go to bed, we are surrounded by technology that has been made possible by the invention of the computer. In this essay, we will explore the history of computers, their impact on society, and the future of computer technology.The history of computers dates back to the 19th century when Charles Babbage, an English mathematician, conceptualized the idea of a mechanical computer. However, it wasn't until the mid-20th century that the first electronic computers were developed. These early computers were large, expensive, and had limited capabilities compared to modern-day computers. Over the years, advancements in technology have led to the development of smaller, faster, and more powerful computers that have revolutionized the way we live and work.The impact of computers on society has been profound. They have transformed the way we communicate, conduct business, and access information. The internet, which is made possible by computers, has connected people from all over the world and has made it possible to access a wealth of knowledge with just a few clicks. Computers have also revolutionized industries such as healthcare, education, and entertainment, making processes more efficient and accessible to a larger audience.Looking to the future, the possibilities for computer technology are endless. With the development of artificial intelligence and machine learning, computers are becoming increasingly intelligent and capable of performing complex tasks. This has the potential to revolutionize industries such as transportation, manufacturing, and finance. Additionally, the rise of quantum computing has the potential to solve complex problems that are currently impossible for traditional computers to solve.In conclusion, computers have had a profound impact onsociety and will continue to shape the way we live and work in the future. As technology continues to advance, the possibilities for computer technology are endless, and we can expect to see even more groundbreaking developments in the years to come.。
介绍电脑发明的英语作文
介绍电脑发明的英语作文The computer, an indispensable tool in the modern world, has its roots in the early 20th century. Its invention revolutionized the way we process information, communicate, and solve complex problems. This essay delves into the history of the computer, from its initial conceptualization to the sophisticated devices we use today.The concept of a computing machine dates back to ancient civilizations, where simple tools like the abacus were used for arithmetic. However, it was in the 19th century that the seeds of the modern computer were sown with the invention of the Jacquard loom, which used punched cards to control the weaving process. This mechanized approach to processing information laid the groundwork for more complex machines.The 20th century marked the true beginning of computer development. In 1937, John Vincent Atanasoff and Clifford Berry developed the Atanasoff-Berry Computer (ABC), which is considered one of the first electronic computers. The ABC used electronic components to perform calculations, a significant departure from the mechanical and electromechanical technologies of the time.During World War II, the need for rapid computation led to the development of the Colossus, a digital computer designed by Tommy Flowers to decrypt German communications. This machine, although not programmable by today's standards, wasa significant step towards the computers we know.The most pivotal moment in computer history came with the invention of the Electronic Numerical Integrator and Computer (ENIAC) in 1946 by John Mauchly and J. Presper Eckert. ENIAC was a giant machine that filled a room and was capable of performing complex calculations at unprecedented speeds. It was the first general-purpose electronic computer, marking the transition from mechanical to electronic computing.The 1950s and 1960s saw the rise of mainframe computers, which were large, expensive, and used by businesses and government agencies. These machines were the precursors to the personal computers that would become household items in the following decades.The 1970s brought about the microprocessor, which miniaturized the computer's core components onto a single chip. This innovation by Intel allowed for the creation of smaller, more affordable computers, paving the way for the personal computer revolution.The 1980s and 1990s were characterized by the proliferation of personal computers in homes and workplaces. Companies like IBM, Apple, and Microsoft played crucial roles in making computers accessible to the masses. The development of the graphical user interface (GUI) made computers more user-friendly, and the advent of the internet transformed theminto tools for global communication and information sharing.Today, computers have evolved into highly sophisticateddevices that are integral to every aspect of life. From smartphones and tablets to supercomputers and cloud computing, the evolution of the computer continues to shape the world in ways that were unimaginable in the early days of computing.In conclusion, the invention of the computer has been ajourney marked by innovation and the relentless pursuit of efficiency and accessibility. As we stand on the brink of new technological advancements like quantum computing andartificial intelligence, the legacy of the computer'sinvention continues to inspire and challenge us to push the boundaries of what is possible.。
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7. Explain what a network, the Internet, and the World Wide Web are, as well as how computers, people, and Web pages are identified on the Internet.解释网络、因特网、万维网，同时说明因特网中如何识别
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Computers in Your Life生活中的计算机
• Why learn about computers?为什么学习计算机相关（知识） – Pervasive computing 普适计算 • Also known as ubiquitous computing也称作无处不在的计算 • Computers have become an integral part of our lives计算机变成我们生活的必要组成部分 – Basic computer literacy基本的计算机文化（知识） • Understanding what a computer is and how it works理解计算机是什么，它如何工作
• Microcomputers in the early 1980s上世纪80年代早期的微机 – Inexpensive personal computers不昂贵的个人电脑 – Computer use increased dramatically计算机使用（率）极大地提高
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Computers in Your Life
• Today现在 – Nearly 90% of US households include a computer, and most use computers at work接近90%的美国家庭拥有计算机，大部分用于工作 – Electronic devices are converging into single units with multiple capabilities电子设备正把各种功能融合到单个设备中 • Check e-mail on living room 在客厅的电视机上收电子邮件 television • View Internet content on mobile 在移动设备上查看互联网内容 devices – Computer literacy is an essential skill for everyone计算机文化（知
业务和个人生活的方方面面
2. Define a computer and describe its primary operations.阐明计算机
并描述它的基本操作
3. List some important milestones in computer evolution.列举计算机
演变史中的一些重要里程碑
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Computers in Your Life
• Before 1980在上世纪80年代以前 – Computers were large and expensive庞大而且昂贵 – Very few people had access to them很少有人能接触它们 – Computers were mostly used for high-volume processing tasks主要用于大批量处理任务
了解计算机Undersday and Tomorrow
综合了解Comprehensive
Chapter 1
Introduction to the World of Computers
计算机世界简介
Learning Objectives学习目标
1. Explain why it is essential to learn about computers today and discuss several ways computers are integrated into our business and personal lives.解释为什么有必要了解今天的计算机，讨论计算机融入我们的
5. Define software and understand how it is used to instruct the computer what to do.阐明软件并理解它如何指挥计算机做什么
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Learning Objectives
6. List the six basic types of computers, giving at least one example of each type of computer and stating what that computer might be used for.列举6种基本的计算机类型，每种类型给出一个例子并阐述其
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Overview内容概览
• This chapter covers:本章内容涵盖 – What computers are, how they work, and how they are used – Computer terminology计算机术语 – An overview of the history of computers计算机历史概览 – The basic types of computers in use today如今使用的计算机的基本类型 – How to access resources on the Internet如何访问互联网资源 – Societal impacts of computers计算机的社会影响
4. Identify the major parts of a personal computer, including input, processing, output, storage, and communications hardware.识别个人计算机的主要组成，包括输入、处理、输出、存储和通信硬件
计算机、用户和网页
8. Describe how to access a Web page and navigate through a Web site.描述如何访问一个网页并通过网站进行导航
9. Discuss the societal impact of computers, including some benefits and risks related to their prominence in our society讨 . 论计算机的社会影响，包括益处与风险，与它们在社会中的重要程度联系起来（思考）