Popular Culture As a Driver of Internet Use
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It Takes Two to Tango: Entrepreneurial Interaction and Innovation by Joe Tidd
Innovation It Takes Two to Tango: Entrepreneurial interaction and innovation By Joe Tidd Innovation management focuses too much on processes and What is Conjoint Innovation? tools, whereas entrepreneurship is pre-occupied with individ- Traditional treatments of the lone, heroic, visionary entre- ual personal traits. However, many of the most successful in- preneur fail to account for the frequency of couples or small novations were co-created by multiple entrepreneurs, and it is groups of entrepreneurs in the creation of successful innova- this interaction of talent that is at the core of radical innovation, tive ventures. The latter qualification is important, because what we call Conjoint Innovation. We examine 15 cases, histor- the focus here is on the creation of innovative new ventures, ical and contemporary, to identify what Conjoint Innovation is and how it works. Table. Examples of Conjoint Innovation ince the pioneering work of scholars such as Joseph Schumpeter and Peter Drucker, the fields of Innovation Apple* Steve Jobs & Steve Wozniak Sand Entrepreneurship have become two separate and dis- Google* Larry Page & Sergey Brin tinct disciplines. However, this division and specialisation has Facebook* Mark Zuckerberg & Eduardo Saverin resulted in a blind-spot: entrepreneurship has become preoc- Microsoft* Bill Gates & Paul Allen cupied with the personalities of individual entrepreneurs and Netflix* Marc Randolph & Reed Hastings small business creation, and innovation is dominated by cor- Intel* Robert Noyce & Gordon Moore 1 porate R&D and new product development processes. As a Marks and Spencer* Michael Marks & Thomas Spencer result, we have failed to identify and understand an important ARM Mike Muller & Tudor Brown part of innovation and entrepreneurship, innovative new ven- Skype Niklas Zennström & Janus Friis tures created by multiple entrepreneurs, what we call Conjoint Sony Masaru Ibuka & Akio Morita Innovation. -
Peer-To-Peer Systems and Massively Multiplayer Online Games
Peer-to-Peer Systems and Massively Multiplayer Online Games Speaker: Jehn-Ruey Jiang CSIE Department National Central University P2P Systems Client/Server Architecture GET /index.html HTTP/1.0 HTTP/1.1 200 OK ... Server Clients 3/66 Peer-to-Peer Architecture Gateway Server Peers 4/66 The architectures Server-based architecture Client-Server / Server-Cluster Problems: Limited resources All loads are centered on the server Server-based architecture has low scalability. The setup and maintenance cost is high. Peer-to-Peer (P2P) architecture Advantages: Distributing loads to all users Users consume and provide resources P2P architecture has high scalability. The setup and maintenance cost is low. The Client Side Today‟s clients can perform more roles than just forwarding users requests Today‟s clients have: more computing power more storage space Thin client Fat client 6/66 Evolution at the Client Side DEC‟S VT100 IBM PC PC @ 4-core 4GHz @ 4.77MHz No storage 300GB HD 360k diskettes „70 „80 2008 7/66 What Else Has Changed? The number of home PCs is increasing rapidly Most of the PCs are “fat clients” As the Internet usage grow, more and more PCs are connecting to the global net Most of the time PCs are idle How can we use all this? Peer-to-Peer (P2P) 8/66 What is peer-to-peer (P2P)? “Peer-to-peer is a way of structuring distributed applications such that the individual nodes have symmetric roles. Rather than being divided into clients and servers each with quite distinct roles, in P2P applications a node may act as both -
Introduction to Peer-To-Peer Systems
CSF641 – P2P Computing 點對點計算 Introduction to Peer-to-Peer Systems 吳俊興 國立高雄大學 資訊工程學系 Outline • Introduction –Why P2P • Basic P2P Technologies – Search/Lookup – Centralized – Unstructured – Structured • Comments on P2P 2 Peer-to-peer Model “Peer-to-Peer (P2P) is a way of structuring distributed applications such that the individual nodes have symmetric roles. Rather than being divided into clients and servers each with quite distinct roles, in P2P applications a node may act as both a client and a server.” Excerpt from the Charter of Peer-to-Peer Research Group, IETF/IRTF, June 24, 2003 http://www.irtf.org/charters/p2prg.html Peers play similar roles No distinction of responsibilities 3 Client-server Model Clients and servers each with distinct roles Request Clients Server U11 Service U12 S U13 U21 The server and the network U22 become the bottlenecks and points of failure U32 U31 •DDoS •Flash Crowd 4 Content Distribution Networks U11 U12 CR1 S U13 CRa CRb U21 Overlay Network CR2 U22 CR3 Hosting + Hierarchical Proxies Content Router + DNS Request Routing CR or Peer Node U32 U31 (Akamai, CacheFlow, etc.) Name: lb1.www.ms.akadns.net Addresses: 207.46.20.60, 207.46.18.30, 207.46.19.30, 207.46.19.60, 207.46.20.30 Aliases: www.microsoft.com, toggle.www.ms.akadns.net, g.www.ms.akadns.net Name: www.yahoo.akadns.net Addresses: 66.94.230.33, 66.94.230.34, 66.94.230.35, 66.94.230.39, 66.94.230.40, … Aliases: www.yahoo.com Name: e96.g.akamaiedge.net Address: 202.177.217.122 Aliases: www.gio.gov.tw, www.gio.gov.tw.edgekey.net Name: a1289.g.akamai.net Addresses: 203.133.9.9, 203.133.9.11 Aliases: www.whitehouse.gov, www.whitehouse.gov.edgesuite.net 5 Content Distribution Networks (Cont.) Paradigm ICPs “Serverless ICP” ICPs Shift (Fabless IC Design House) Content Network “Content Foundry” Providers (CNPs) (Semiconductor Foundry) ISPs ISPs I.C. -
04. Peer-To-Peer Applications
Internet Technology 04. Peer-to-Peer Applications Paul Krzyzanowski Rutgers University Spring 2016 February 15, 2016 CS 352 © 2013-2016 Paul Krzyzanowski 1 Peer-to-Peer (P2P) Application Architectures • No reliance on a central server • Machines (peers) communicate with each other • Pools of machines (peers) provide the service • Goals client server – Robustness • Expect that some systems may be down – Self-scalability • The system can handle greater workloads as more peers are added peers February 15, 2016 CS 352 © 2013-2016 Paul Krzyzanowski 2 Peer-to-Peer networking “If a million people use a web site simultaneously, doesn’t that mean that we must have a heavy-duty remote server to keep them all happy? No; we could move the site onto a million desktops and use the Internet for coordination. Could amazon.com be an itinerant horde instead of a fixed central command post? Yes.” – David Gelernter The Second Coming – A Manifesto See http://edge.org/conversation/the-second-coming-a-manifesto February 15, 2016 CS 352 © 2013-2016 Paul Krzyzanowski 3 Peer to Peer applications • P2P targets diverse solutions – Cooperative computation – Communications (e.g., Skype) – Exchanges, digital currency (bitcoin) – DNS (including multicast DNS) – Content distribution (e.g., BitTorrent) – Storage distribution • P2P can be a distributed server – Lots of machines spread across multiple datacenters Today, we’ll focus on file distribution February 15, 2016 CS 352 © 2013-2016 Paul Krzyzanowski 4 Four key primitives • Join/Leave – How do you join a P2P system? -
You Are Not Welcome Among Us: Pirates and the State
International Journal of Communication 9(2015), 890–908 1932–8036/20150005 You Are Not Welcome Among Us: Pirates and the State JESSICA L. BEYER University of Washington, USA FENWICK MCKELVEY1 Concordia University, Canada In a historical review focused on digital piracy, we explore the relationship between hacker politics and the state. We distinguish between two core aspects of piracy—the challenge to property rights and the challenge to state power—and argue that digital piracy should be considered more broadly as a challenge to the authority of the state. We trace generations of peer-to-peer networking, showing that digital piracy is a key component in the development of a political platform that advocates for a set of ideals grounded in collaborative culture, nonhierarchical organization, and a reliance on the network. We assert that this politics expresses itself in a philosophy that was formed together with the development of the state-evading forms of communication that perpetuate unmanageable networks. Keywords: pirates, information politics, intellectual property, state networks Introduction Digital piracy is most frequently framed as a challenge to property rights or as theft. This framing is not incorrect, but it overemphasizes intellectual property regimes and, in doing so, underemphasizes the broader political challenge posed by digital pirates. In fact, digital pirates and broader “hacker culture” are part of a political challenge to the state, as well as a challenge to property rights regimes. This challenge is articulated in terms of contributory culture, in contrast to the commodification and enclosures of capitalist culture; as nonhierarchical, in contrast to the strict hierarchies of the modern state; and as faith in the potential of a seemingly uncontrollable communication technology that makes all of this possible, in contrast to a fear of the potential chaos that unsurveilled spaces can bring. -
Get Real: Print This
Get Real: Print This http://www.corante.com/getreal/archives/032237print.html from Get Real by Marc Eisenstadt January 11, 2005 BitTorrent, eXeem, Meta-Torrent, Podcasting: "What? So What?" SUMMARY: The index that facilitates the sharing of files on a large scale is also the Achilles heel of peer-to-peer file-sharing, because it is vulnerable to litigation and closure. So what happens if the index is itself distributed? I try to get my head around the latest in peer-to-peer file sharing, and explain a bit about what I've learned, including the fact that BitTorrent's power rests in its 'swarm' distribution model, but not necessarily in your end-user download speed. What has this got to do with podcasting? (Answer: invisible P2P plumbing helps the podcasting wheel go round). [Warning: lengthy article follows]. First, some history (skip ahead to the next section if you're already bored with the Napster, Gnutella, KaZaa, and BitTorrent saga). Napster opened our eyes to the power of distributed file sharing on a massive scale. But it was closed down by lawsuits to stop it from listing copyrighted works for which the owners would naturally have preferred to collect royalties (there are thousands of commentaries on the pros and cons of such royalties, but that's not the focus of this posting). Successive generations of tools such as Gnutella, KaZaa, and now BitTorrent have created their own buzz, their own massive followings, their own headaches, and their own solutions to others' headaches. Here's my rundown of the 'big ideas' (and the people behind them): Napster (Shawn Fanning): This was the Mother of big-time peer-to-peer (P2P) file transfers, i.e. -
Title: P2P Networks for Content Sharing
Title: P2P Networks for Content Sharing Authors: Choon Hoong Ding, Sarana Nutanong, and Rajkumar Buyya Grid Computing and Distributed Systems Laboratory, Department of Computer Science and Software Engineering, The University of Melbourne, Australia (chd, sarana, raj)@cs.mu.oz.au ABSTRACT Peer-to-peer (P2P) technologies have been widely used for content sharing, popularly called “file-swapping” networks. This chapter gives a broad overview of content sharing P2P technologies. It starts with the fundamental concept of P2P computing followed by the analysis of network topologies used in peer-to-peer systems. Next, three milestone peer-to-peer technologies: Napster, Gnutella, and Fasttrack are explored in details, and they are finally concluded with the comparison table in the last section. 1. INTRODUCTION Peer-to-peer (P2P) content sharing has been an astonishingly successful P2P application on the Internet. P2P has gained tremendous public attention from Napster, the system supporting music sharing on the Web. It is a new emerging, interesting research technology and a promising product base. Intel P2P working group gave the definition of P2P as "The sharing of computer resources and services by direct exchange between systems". This thus gives P2P systems two main key characteristics: • Scalability: there is no algorithmic, or technical limitation of the size of the system, e.g. the complexity of the system should be somewhat constant regardless of number of nodes in the system. • Reliability: The malfunction on any given node will not effect the whole system (or maybe even any other nodes). File sharing network like Gnutella is a good example of scalability and reliability. -
Skype Is a P2P (Peer-To-Peer) Voice-Over-IP (Voip) Client Founded by Niklas Zennström and Janus Friis—Also F
Signals Codes Analog and Digital Signals Compression Data integrity Skype Signals Codes Analog and Digital Signals Compression Data integrity Skype What is Skype? Why is Skype so successful? Everybody knows! Skype is a P2P (peer-to-peer) Voice-Over-IP (VoIP) client founded Because: by Niklas Zennstr¨omand Janus Friis—also founders of the file it provides better voice quality than anybody else (Skype sharing application Kazaa (the most downloaded software ever, transmits the full range of human hearing, 20 Hz to 20KHz Skype’s 309 million registered users have made more than 100 (compare with the best telephone supporting frequencies in billion minutes worth of free Skype-to-Skype calls). the range 300Hz to 3.4KHz); Skype is an application that allows free phone calls between it is reliable and can work almost seamlessly behind NAT’s computers, and extremely cheap calls to (practically) everywhere and firewalls; on Earth! it is extremely easy to install and use (probably the most Skype (founded in 2002, acquired by eBay in 2005; on September user-friendly application). 1st, 2009, a group of investors led by Silver Lake bought 65% of Skype for $1.9 billion) is the fastest growing service in the history of the Internet. Data Communications Fundamentals 172 / 191 Data Communications Fundamentals 173 / 191 Signals Codes Analog and Digital Signals Compression Data integrity Skype Signals Codes Analog and Digital Signals Compression Data integrity Skype How does Skype actually work? 1 How does Skype actually work? 2 Skype network has three types of machines, all running the same A Skype client (SC) (or ordinary host) is the computer of a regular software and treated equally: Skype user connected to the network in order to communicate with other users. -
Chapter 1 the Entrepreneur: Concepts and Evidence
24 Chapter 1 The Entrepreneur: Concepts and Evidence The following case material is extracted frem a case study written by Professor Hans Bent Martinsen at Aarhus " Business Scheoj, Denmark and we aTle grateful f0F the permission to lise it Source: Martinsen (2006) Why were Janus Friis and Niklas Zennström successful with Kazaa and Skype?, Aarhus Business School, Denmark. Three important technological trends occurred in the 1990s: • The growth of digital recordings via CDs and move away from analogue recordings • 'flue growth of home PC use • The growth and availability of the Internet allowing the possibility of sharing digital files with other users During the 1990s the music industry had seen th€ introduction of digital CDs, and with the advent and take• up of home pes copying CDs and retaining qualify of sound became viable. The I!flternet brought the pos• sibility of sharing and exchanging files. In 1999 Napster was created by American student Shawn Fanning: This was a software program that made MP3 files available for all other Napster users via the Internet. In this way Napster turned thousands of computers into one huge server. However, the Recording Industry Association of America (RIAA) took Napster to court and Napster was forced to close its server in August 2000. But Napster had shown the way and soon there were a whole swarm of peer-to-peer file servers on the Internet. The result was that companies could try to get court injunctions, but because servers could be ænywhere in the world, the growth of downloading digital recordings via the Internet continued unabated. -
What Are the Uses of Skype? What Does It Do? Who Uses Skype?
Skype Unknown macro: {align} Unknown macro: {logo} http://wiki.itap.purdue.edu/download/attachments/4293019/rsz_logo_-_skype-1.jpg "> Unknown macro: {align} Unknown macro: {logo} http://wiki.itap.purdue.edu/download/attachments/4293019/rsz_logo_-_skype-1.jpg What Are the Uses of Skype? What Does It Do? The main purpose of Skype is to connect people. People from around the world can connect through many different ways. They can connect through one or two way audio, one or two way video, one or two way audio and video or through text. People can also call any telephone around the world though this costs money, but talking between Skype users does not cost a thing. It can be used on Windows, Mac, and Linux operating systems so almost all computers are compatible. It also works with many different cell phones and mobile devices so individuals can use it whenever/wherever they want. It also can be used by a teacher who is teaching an online class. Unknown macro: {center} Who Uses Skype? Skype in Business Skype is used for businesses that need to reach people around the country or world for as cheap as possible. When business workers use Skype they can get more done, talk more to your clients, and cut your phone bill. Business workers can make free calls to people when they are using Skype and if they choose to call mobile phones or landlines it is very cheap.They can also use Skype from many mobile phones so you can use it anywhere. Skype also allows users to make video calls so business workers can make conference calls for free anytime, anywhere. -
Essay the Evolution and Revolution
Essay The Evolution and Revolution of Napster* By PETER JAN HONIGSBERG** As I TURNED the corner onto Seventh Street from Mission Street in San Francisco on that Monday morning, October 1, 2000, I knew I was watching history unfold. The satellite dishes, the neon-bright lights set atop the media vans, and members of the press fidgeting anxiously had replaced the homeless who usually encamp near the main en- trance to the Federal Court of Appeals building. As many as two hun- dred members of the national and international media had arrived that day, some as early as 4:15 A.M., although the music industry's law- suit against Napster was scheduled to begin at 11:00 A.M.I A television reporter was interviewing a balding man in a blue striped suit, the artificial lamps barely making a dent in the gray, dull natural light. I. Piracy-the Word of the Day While I watched the reporters lining up at the door to the court- house, I could not help but see the "P" word flashing overhead. The five major record companies ("the majors") and the Recording Indus- try Association of America ("RIAA")-the association that represents the companies-had paid their publicity agents and lawyers well. Piracy was the word of the day. Actually, at least where Napster was concerned, it was the word of the entire millennium year of 2000, and continued to be the word after the Ninth Circuit issued its unanimous * Just like the technology upon which this essay is based, the essay itself will be out of date the moment the typing stops. -
Ahistory of ONLINE GATEKEEPING
Harvard Journal of Law & Technology Volume 19, Number 2 Spring 2006 A HISTORY OF ONLINE GATEKEEPING Jonathan Zittrain* TABLE OF CONTENTS I. INTRODUCTION..............................................................................253 II. TWO KINDS OF GATEKEEPERS .....................................................254 III. EARLY APPLICATIONS OF GATEKEEPING ONLINE: SUPPLEMENTS TO EXISTING PRIVATE MONITORING AND ENFORCEMENT REGIMES ..............................................................257 IV. LIMITED GATEKEEPING CONTINUES AS THE INTERNET MATURES: COPYRIGHT INFRINGEMENT, ISPS, AND OSPS............263 V. LIMITED GATEKEEPING IS TESTED AS THE INTERNET DEVELOPS FURTHER: COPYRIGHT INFRINGEMENT, PEER- TO-PEER SERVICES, AND RENEWED CONSIDERATION OF DUTIES TO PREEMPT OR POLICE ...................................................271 VI. GATEKEEPING ON THE GRID: GROKSTER AS FORBEARANCE..............................................................................286 VII. THE END OF REGULATORY FORBEARANCE?: FROM KRAAKMAN’S GATEKEEPERS TO LESSIG’S GATEKEEPERS ...........294 VIII. CONCLUSION............................................................................298 I. INTRODUCTION The brief but intense history of American judicial and legislative confrontation with problems caused by the online world has demon- strated a certain wisdom: a reluctance to intervene in ways that dra- matically alter online architectures; a solicitude for the collateral damage that interventions might wreak upon innocent activity; and, in the balance, a refusal