S&T Information Age.pptx

SciTech The Information Age Learning Outcomes ❏ Link learned concepts to the development of the information age and its impact on society ❏ Illustrate how social media and the information age have impacted our lives Introduction There are so many modern technologies today. These technol...

SciTech The Information Age Learning Outcomes ❏ Link learned concepts to the development of the information age and its impact on society ❏ Illustrate how social media and the information age have impacted our lives Introduction There are so many modern technologies today. These technologies influence human lives and the society as a whole. One aspect that technologies has greatly affected is INFORMATION. Communicating or exchanging information is important to humans due to a wide array of reasons. However, it can be limited by: Distance Time Location Introduction The attempt of humans to address the three limitations of communication or exchange of information led to new technologies. These technologies affected the social, political and economic role of information leading to the so-called Information Revolutions. The Information Age ➔ Is also called the DIGITAL AGE and the NEW MEDIA AGE because it was associated with the development of computers. James R. Messenger Proposed the Theory of Information Age in 1982 The information age is a true new age based upon the interconnection of computers via telecommunications, with these information systems operating on The modern both age is regarded a real-time and as as-needed basis 1 a time in which information 2 The present time, in which has become a commodity that large amounts of information is quickly and widely are available because of disseminated and easily developments in computer available esp. through technology (Cambridge computer technology (Merriam Dictionary) Webster) Introduction The start of the information revolution was made possible by the invention of language, writing and printing. History of the Information Age The invention of language, writing and printing greatly improved how human exchange information and communicate. From these, early and primitive forms of information and History of the Information Age The following were ways of exchanging information in the past: drum rolls, fire signals, hand signals, use of pigeons, use of flags and papyrus. Many of them are still in use today. However, they remain to have limitations. First Information Revolution Information Revolutions aimed to address the limitations of communication. The first Information Revolution began in the mid-nineteenth century with the invention of the telegraph, telephone and radio. It lasted until the 1950s.  First Information Revolution American inventor SAMUEL MORSE was credited for developing the first operational model of the telegraph. His prototype was patented in 1940, but was first used in 1945. The use of the telegraph became widespread in America and then in Europe. It increased the connection between people separated by great First Information Revolution The telegraph played an important role during the AMERICAN CIVIL WAR. It was used by the US Government to communicate military information, command, and intelligence reports to its troops. First Information Revolution Telegraphs were also used by diplomatic offices in Europe to communicate with other countries. This enabled easier communication and linkage among countries. First Information Revolution After the invention of the telegraph, the telephone was invented. The first telephonic device was developed by Johann Philip Reis. However, Alexander Graham Bell was credited for the invention of the telephone in 1876. Unlike telegraphs, telephones can send sound waves. First Information Revolution After its invention, the telephone became very popular in the US and eventually, in Europe. Networks of telephone communication were established. It impacted businesses, military, foreign affairs and many other human activities. First Information Revolution The radio is another important technology of the First Information Revolution. It was Guglielmo Marconi who invented and patented the first radio. However, his radio can only send Morse codes. It was Reginald Fessenden who discovered how to send voice and music through the radio. Guglielmo Marconi Reginald Fessenden First Information Revolution Radio networks and stations were eventually established in the US and in Europe. Radios were used by the military during the World Wars. After the wars, the radio played a key part in the development of the broadcasting (news) and the music industries. Second Information Revolution The second information revolution began in the 1950s until the 1980s. The second Information Revolution further improved communication due to the invention of the television, early generation computers and satellites. This revolution made the “world smaller.” Second Information Revolution The television was actually developed in the 1920s based on the work of 3 inventors. Farnsworth invented the process of image scanning. Zworykin invented the iconoscope tube and the kinescope television tube. Dumont invented the receiver Second Information Revolution However, the television’s immense improvement and wide use happened after World War II. Until now, televisions are ubiquitous and have significant global impact. Second Information Revolution The development of the early computers were due to the needs of the military. John Vincent Atanasoff was credited for developing the 1st electronic digital computer in 1939. Alan Turing developed the first working digital computer, the “Collossus”. It was used during World War II to decode Nazi war codes. Alan Turing Second Information Revolution ENIAC In 1946, J.Presper Eckert and John Mauchly developed ENIAC or Electronic Numerical Integrator and Calculator. The problem with ENIAC and other first-generation computers was that they used vacuum tubes which generated a lot of heat causing overheating or burning out. Second Information Revolution The problem on overheating led to the development of transistors by William Shockley, Walter Brattain and John Bardeen. The use of transistors are the basis for the second-generation computers. The second- generation computers were smaller, faster and more reliable Second Information Revolution The invention of integrated circuits led to the development of the 3rd- generation computers. The development of the early computers is significant as it demonstrated the synergy from the collaboration among the government, the military and the industry in doing innovation. Second Information Revolution Early computers made it easier to manipulate, transmit, process and store data. It helped in linking people, industries and governments together. Early computers were replaced by modern, more advanced models. To-date, the impact of computers to society continues Second Information Revolution In order to transmit telephone and television signals in a global scale, satellites were developed. Satellites enabled global communication. Sputnik 1, was the first artificial satellite. It was developed by the Soviet Union and was launched in 1957. This marked the beginning of the so-called Space Age. In the US, the military launched its first satellite, the SCORE or Signal Communications by Orbiting Relay Second Information Revolution The development of satellites were initially done by the military for military purposes. Eventually satellites were developed by civilians for non-military use. Syncom III, was the first civilian telecommunications satellite. It was launched into orbit in 1964. It was developed by NASA and was used to broadcast the 1964 Summer Olympics. Second Information Revolution Intelsat I or the “Early Bird” was the first commercial communications satellite. It was launched in 1965 and was developed by Hughes Aircraft Company (now Boeing Satellite Systems) Second Information Revolution Later on, satellite technologies were further improved and developed. This enabled global communications, and the rise of television networks, and telecommunications companies. Satellites allowed governments and companies to send information with privacy, reliability and timeliness. Third Information Revolution The technologies of the first two Information Revolutions paved the way for more technologies and innovations which led to the Third Information Revolution. The main technologies of the Third Information Revolution are: Advanced semiconductors Advanced computers Fiber optics Cellular technology Satellite technology Advanced networking Improved human-computer interaction Digital transmission and digital compression Third Information Revolution Semiconductors are the most significant technology that significantly increased the ability of storing, processing, and transmitting information. Because of semiconductors, memory storage increased dramatically from 10,000 bits of information in 1978 to 160 trillion bits of information in 2017. Third Information Revolution Microprocessors were also rapidly developed, In the 1980s, a microprocessor contained around 10,000 transistors. In 2018, microprocessors with 6.9 billion transistors were developed. Third Information Revolution The fourth generation computers were made possible by the development of computer chips that have hundreds of thousands of components. Third Information Revolution The fifth generation computers used multiple processing units allowing the simultaneous processing of data. Supercomputers were part of the fifth generation. Advanced computers allowed easier and faster transmission of voices, photos, digital data and other forms of Cray Supercomputers information. Processing and storage of data were made Third Information Revolution Cable television, telephone and telegraph use copper wires or coaxial cables. The problem with copper wires is that they are prone to attenuation and leakage. Also, copper wires and coaxial cables have limitations on the data that they can handle. Third Information Revolution The invention of fiber optics addressed these problems. Fiber optics are extremely thin glass fibers that can carry information from one source to another. It is faster in terms of transmission of information. Copper wires can transmit hundreds of thousands of bits of information while fiber optics can transmit billions of bits of information. Third Information Revolution Transmitters and receivers are usually large, heavy and difficult to carry or move. The development of cellular technology solved the problem. Cellular technologies led to the development of cellular phones which made communication easier among individuals. Third Information Revolution Cellular phones can also store and process data. Its widespread use started in the 1970s. Today, cellular phones are not only being used for communication but also for other purposes such as photography, music, videos, navigation, and eLearning among others. Third Information Revolution Satellite technologies helped build the global communication infrastructure. They are being used for telephone, television, radio and even weather and climate equipment. Satellites enabled the global broadcast of events, shows, international teleconferencing, international phone calls and other forms of global connectivity. Third Information Revolution Networking or advanced networks enhanced the connectivity and communication worldwide. The largest form of advanced network is the INTERNET. The use of the internet is so widespread, more than half of the world’s population is using it. There are at least 1.6 billion websites worldwide. The internet made possible the development of social media, online libraries, electronic mail, video calls, e-learning and e- commerce. Today, the goal is to develop a fully integrated, high-speed, high-capacity network. Third Information Revolution Initially, one key challenge in the use of computers is the lack of “good human-computer interaction.” Previous models of computers were not user-friendly; they were complex to operate. Today, with advancement in technologies and industrial design, major progress were made in terms of human-computer interaction. The increase in the data processing capacity of computers led to the simplification of user interphase. Today, computers are easy to use and also have become more affordable. This allowed the democratization of access to Third Information Revolution In order to further improve communication, digital transmission was developed. It used digital signals instead of analog signals. Digital signals are more efficient and effective. The use of digital signals allowed the development of digital compression or the lowering of the size of data or information. Digital compression allowed more data storage, which resulted to easier and faster data transmission. Digital technologies are so ubiquitous nowadays. They are widely used and relevant in almost all aspects of human life. Third Information Revolution The third information revolution resulted to the following: Increase the speed of information transmission Greater capacity to transmit information More flexibility in the flow of information Greater access to information by the people, institutions and businesses Heightened demand for more new technologies or improvements in the current ones Impact of the Information Age The information age has the following positive impacts: 1. It enabled greater connectivity of people around the world. a. Citizens in Japan or Spain would know what is happening in Argentina or Australia. Overseas Filipino workers in the Middle East can talk to their families in the Philippines because of online video calls. 2. It made many aspects of day to day life more convenient a. In getting government documents, online portals can now be used. Shopping can now be done online. Job applications can be done online. Online education is now also possible. 3. It created online communities a. Information technologies made possible the creation of online communities. People with common interests such as hobbies, expertise, and advocacies can now communicate, share ideas, and meet online 4. It made information more accessible a. Almost all information can be accessed through the Internet. Never in human history has so much information become so accessible at so much speed. However, it is important to validate the source of information and to critically  Impact of the Information Age The information age also has the following downsides: 1. Many information are false and misleading a. Sharing and access to information in the internet is difficult to regulate. This leads to proliferation of false information like “fake” news. This can result to many serious negative social, political and economic implications 2. It allowed the conduct of crimes and illegal activities a. Information technologies were also used for crimes and illegal activities. Online sharog of dirty and pronographic materials, illegal trading, phising, hacking and identity theft in social media, and cyber bullying became possible 3. It created a “digital divide” a. Divide refers to the non-physical boundary between those who have access and are literate on information technologies versus those who are not. Those who have access can take advantage of the benefits of the information age, while those who don’t have access are further deprived of opportunities. 4. It affected humans productivity and flourishing a. Many human skills are being replaced by information technology, hence,= workers face the constant threat of losing jobs. On one hand, many individuals are also addicted to online media, online games, and other online activities that take away  ? Which developments in the Information Age brought significant changes in the way you live your life today? Why? Online video TED Talk: Julian Assange on “Why the world needs wikileaks” Activity: Illustrate how social media impacted our lives 1. Divide the class into 5 groups 2. Each group will make a creative presentation. Illustrate how social media and information age have impacted our lives positively and/or negatively 3. Be creative i.e. make a poster, use doodles, create memes, etc 4. Each group will be given 7 minutes to make the presentation Conclusion/Summary Information Age is characterized by the rise of information and communications technology. These technologies aimed to address the limits imposed by distance, time and location in exchanging information. Definitely, the information age has significant impact to human society. There are many benefits brought about by technologies developed during this period, but there are also downsides that we need to be aware of and need to address References https://k12.starbooks.ph/pluginfile.php/10356/mod_resource/content/3/index.html