A cademic report
tải về 3.81 Mb.
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- Điều hướng trang này:
- Year
- 2. Time and venue
- Smartphone (Textbook)
- 4. Diễn biến của quá trình báo cáo / Progress of academic report
- Summarize the presentation of the group/student
- Next, Trung Van presented about "Tech of 3rd screen work Digital
- Then, Kieu My talked about the industry work.
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A CADEMIC REPORT PRACTICE 2 – MED 201 BÁO CÁO HỌC THUẬT NHÓM BÀI TẬP 2 – MÔN MED Semester: SPRING - Year: 2023 Chủ đề/topic: HOST SMARTPHONE (TEXTBOOK) 1. Member of Host: 1. Trần Mai Anh. (Leader, MC) 2. Trần Nguyễn Hoàng Anh. 3. Kiều Quốc An. 4. Võ Nguyễn Nguyên Quốc. 2. Time and venue: Time: 17:19-18:11, 22/02/2023 Venue: Room 618 3. Giới thiệu chủ đề thảo luận và nhóm trình bày/introduction of the topic and member of the group: Chủ đề/topic: Smartphone (Textbook) Thành viên nhóm thuyết trình/members of presentation: 1. Đỗ Nguyễn Hữu Trí 2. Trần Kiều My. 3. Đặng Trung Văn. 4. Nguyễn Trung Tín. Thành viên nhóm debate/members of debate: 1. Nguyễn Hoàng Anh Tuấn. 2. Lê Cao Hạnh Nhân. 3. Nguyễn Nhật Gia Hân. 4. Diễn biến của quá trình báo cáo / Progress of academic report: (Name of the report): Starting time: Slot 4 Ending time: 18h15 Summarize the presentation of the group/student: First, Trung Tin started the present with "What does the Third Screen mean?" I. What does the Third Screen mean? - Smartphone and tablet computers are ushering in a new phase of our relationshíp with telecommunications networks, becoming the third screen (after computers and TVs) in our lives. => The third screen is seen as the game changer. Growing out of its predecessors, the handheld third screen enables us to keep in touch with people wherever or whenever they are; brings us a growing array of mobile entertainment and information options. A. The third screen arrrives: - Cell phones have completely replaced landline phones in nearly half of U.S homes. - The introduction of Apple’s iPhone in 2007 and the iPad in 2010 marked a shift in content though they did not invent the cell phone itself. - The idea of adding visual displays dated back to the 1920s when AT&T’s pioneering experimented with TV. Later they announced that video phones were going to be “the next big thing” but failed to catch on. - The first cell phone was IBM’s Simon, introduced in 1992 with a touch screen, data and voice capabilities, and built-in apps including calendar, calculator, email, and games though it aimed at business users. - In 1996, Nokia came out with a line of cell phones that added emails and address book functions which we might also call the first smartphone. - The Blackberry was recognized as the handheld telecommunications device that made mobile messaging a popular cultural phenomenon. - Apple introduced a pen-based handheld computer called the Apple Newton in 1993 though it was a flop towards consumers owing in part to a flawed handwriting recognition system. Microsoft's Tablet PC preceded the iPad by a decade, but was aimed at business users rather than consumers. B. The social impact: - On one hand, mobile phones can convey a sense of security in emergency situations while traveling and intensify the nature of our social interactions. - On the other hand, using mobile phones has plenty of cons including: talk or text while driving is a serious safety hazard; constant texting and chatting are annoying in public places; they can be a way of withdrawing from face-to-face interactions between ours loved ones; some concerns about “addictive” qualities of smartphone use or the health hazard of the electromagnetic radiation that leaks from them. C. Media face the Third Screen: - The advent of the iPad made media executives rethink the future of media distribution. - There is great interest in the media industry in apps that deliver versions of print publications to the device. The market for mobile video is also promising. - Mobile media are making big media money and drawing large audiences. + App sales are big business, grossing $50 million a year. + Mobile ads account for over $12 million a year in ad revenues and continually grow at a fast pace. + Smartphones and tablets are also making inroads on online purchases, commonly called m-commerce. => It’s a matter of time before the third screen surpasses both TVs and computer screens at the center of commerce and culture in modern society. Next, Trung Van presented about "Tech of 3rd screen work? Digital wireless world". II. Tech of 3rd screen work? Digital wireless world A. From analog to digital - The basic way to transmit computer data is to turn on a tiny electrical voltage to represent a 1 and to turn off the voltage to represent a 0. - Modem (modulator -demodulator) : Modems used on dial-up networks convert data between the analog form used on telephone lines and the digital form used on computers or convert pulse to signals that can be accepted and processed by phone system as if they were sound. - DSL ( digital subscriber line) transmits digital video as well as data and voice at the speed of millions of bits per second over standard telephone lines. - DSL is a broadband technology, so it can transmit data at speeds of over 768 thousand bits per second. faster than dial-up; in a lot of cases it’s faster than satellite (and no latency for gamers). B. Digital Networks - The T-carrier system is a fully digital transmission system developed by Bell Labs and introduced in the US in 1962 with the T-1 line, which supported digitized voice transmission through pulse , which greatly increased the number of telephone calls that a given telephone network was capable of handling at one time. - Laser: produce intense beams of pure, concentrated light. - Fiber-optic: the science of transmitting data, voice, and images by the passage of light through thin, transparent fibers. Their method for sending information is turning the light source on and off, well suited to the 1s and 0s. - Capable TV: companies also install fiber optics but the final connection to subscribers is with the coaxial cable ( copper-based medium), connected to cable modems. C. Mobile network : - The first generation cell phones : the Advanced Mobile Phone System (AMPS): used analog transmission, now extinct in the United States - Second-generation digital phones: now you can text message but it is also extinct - Third-generation (3G): conclude Web browser and e-email service. 3G network has broadband transmission speeds of 1-3 million bits per second. - Fourth- generation (4G): introduced in 2010 , treat both voice and data streams as packets of data like those on the Internet. Telecom carriers around the world are adopting the LTE( long-term evolution) 4G users get speeds of up to 100 Mbps - Wifi ( wireless fidelity): are formally known as IEEE 802.11, send the Internet’s TCP/IP packets through the air to wireless receivers at speeds of over 1 billion bits per second, - Bluetooth( name after a tenth-century Danish king with dental issues): desktop version of wireless networking. Linking your earpiece to phone or phone to personal computer, or now we can link mouse or keyboard to computer. - Satelite: Wireless voice and data service can also be provided by satellites that fly in low Earth orbit (LEO) - Locator technologies: Your smartphone knows your location and lét others know,too + GPS ( geo-positioning satellite): locates your smartphone’s position in the real world by comparing the strength of signals received from three or more satellites turning overhead. + NFC ( near field communication) capabilities : short-range radio transmitters allow you to send information. If you’ve ever used a key card to access an office building or hotel room, you’re already familiar with how it works. Then, Kieu My talked about the industry work. tải về 3.81 Mb. Chia sẻ với bạn bè của bạn:
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