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The Advanced Research Projects Agency Network (ARPANET) was the first wide-area network and it is considered as the foundation of the Internet.

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The concept of a local area network appeared

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A local area network ( LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. By contrast, a wide area network (WAN) not only covers a larger geographic distance, but also generally involves leased telecommunication circuits.

Ethernet and Wi-Fi are the two most common technologies in use for local area networks. Historical network technologies include ARCNET, Token Ring and AppleTalk.

The increasing demand and usage of computers in universities and research labs in the late 1960s generated the need to provide high-speed interconnections between computer systems. A 1970 report from the Lawrence Radiation Laboratory detailing the growth of their "Octopus" network gave a good indication of the situation.

A number of experimental and early commercial LAN technologies were developed in the 1970s. Ethernet was developed at Xerox PARC between 1973 and 1974. Cambridge Ring was developed at Cambridge University starting in 1974. ARCNET was developed by Datapoint Corporation in 1976 and announced in 1977. It had the first commercial installation in December 1977 at Chase Manhattan Bank in New York. In 1979, the Electronic voting systems for the European Parliament was the first installation of a LAN connecting hundreds (420) of microprocessor-controlled voting terminals to a polling/selecting central unit with a multidrop bus with Master/slave (technology) arbitration.[dubious ]

The development and proliferation of personal computers using the CP/M operating system in the late 1970s, and later DOS-based systems starting in 1981, meant that many sites grew to dozens or even hundreds of computers. The initial driving force for networking was to share storage and printers, both of which were expensive at the time. There was much enthusiasm for the concept, and for several years, from about 1983 onward, computer industry pundits habitually declared the coming year to be, "The year of the LAN".

In practice, the concept was marred by the proliferation of incompatible physical layer and network protocol implementations, and a plethora of methods of sharing resources. Typically, each vendor would have its own type of network card, cabling, protocol, and network operating system. A solution appeared with the advent of Novell NetWare which provided even-handed support for dozens of competing card and cable types, and a much more sophisticated operating system than most of its competitors.

Of the competitors to NetWare, only Banyan Vines had comparable technical strengths, but Banyan never gained a secure base. 3Com produced 3+Share and Microsoft produced MS-Net. These then formed the basis for collaboration between Microsoft and 3Com to create a simple network operating system LAN Manager and its cousin, IBM's LAN Server. None of these enjoyed any lasting success; Netware dominated the personal computer LAN business from early after its introduction in 1983 until the mid-1990s when Microsoft introduced Windows NT.

In 1983, TCP/IP was first shown capable of supporting actual defense department applications on a Defense Communication Agency LAN testbed located at Reston, Virginia. The TCP/IP-based LAN successfully supported Telnet, FTP, and a Defense Department teleconferencing application. This demonstrated the feasibility of employing TCP/IP LANs to interconnect Worldwide Military Command and Control System (WWMCCS) computers at command centers throughout the United States. However, WWMCCS was superseded by the Global Command and Control System (GCCS) before that could happen.

During the same period, Unix workstations were using TCP/IP networking. Although the workstation market segment is now much reduced, the technologies developed in the area continue to be influential on the Internet and in all forms of networking-and the TCP/IP protocol has replaced IPX, AppleTalk, NBF, and other protocols used by the early PC LANs.

In 1979, the Electronic voting systems for the European Parliament was using 10 kilometers of simple unshielded twisted pair category 3 cable -the same cable used for telephone systems-installed inside the benches of the European Parliament Hemicycles in Strasbourg and Luxembourg.

Early Ethernet ( 10BASE-5 and 10BASE-2) used coaxial cable. Shielded twisted pair was used in IBM's Token Ring LAN implementation. In 1984, StarLAN showed the potential of simple unshielded twisted pair by using category 3 cable-the same cable used for telephone systems. This led to the development of 10BASE-T (and its twisted-pair successors) and structured cabling which is still the basis of most commercial LANs today.

While optical fiber cable is common for links between network switches, use of fiber to the desktop is rare.

In a wireless LAN, users have unrestricted movement within the coverage area. Wireless networks have become popular in residences and small businesses, because of their ease of installation. Most wireless LANs use Wi-Fi as wireless adapters are typically integrated into smartphones, tablet computers and laptops. Guests are often offered Internet access via a hotspot service.

Network topology describes the layout of interconnections between devices and network segments. At the data link layer and physical layer, a wide variety of LAN topologies have been used, including ring, bus, mesh and star.

Simple LANs generally consist of cabling and one or more switches. A switch can be connected to a router, cable modem, or ADSL modem for Internet access. A LAN can include a wide variety of other network devices such as firewalls, load balancers, and network intrusion detection. Advanced LANs are characterized by their use of redundant links with switches using the spanning tree protocol to prevent loops, their ability to manage differing traffic types via quality of service (QoS), and their ability to segregate traffic with VLANs.

At the higher network layers, protocols such as NetBIOS, IPX/SPX, AppleTalk and others were once common, but the Internet protocol suite (TCP/IP) has prevailed as the standard of choice.

LANs can maintain connections with other LANs via leased lines, leased services, or across the Internet using virtual private network technologies. Depending on how the connections are established and secured, and the distance involved, such linked LANs may also be classified as a metropolitan area network (MAN) or a wide area network (WAN).

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A local area network ( LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. By contrast, a wide area network (WAN) not only covers a larger geographic distance, but also generally involves leased telecommunication circuits.

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The Internet was born

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1980

Landweber's proposal has many enthusiastic reviewers. At an NSF-sponsored workshop, the idea is revised in a way that both wins approval and opens up a new epoch for NSF itself. The revised proposal includes many more universities. It proposes a three-tiered structure involving ARPANET, a TELENET-based system, and an e-mail only service called PhoneNet. Gateways connect the tiers into a seamless whole. This brings the cost of a site within the reach of the smallest universities. Moreover, NSF agrees to manage CSNET for two years, after which it will turn it over to the University Corporation for Atmospheric Research (UCAR), which is made up of more than 50 academic institutions.

The National Science Board approves the new plan and funds it for five years at a cost of $5 million. Since the protocols for interconnecting the subnets of CSNET include TCP/IP, NSF becomes an early supporter of the Internet.

NASA has ARPANET nodes, as do many Department of Energy (DOE) sites. Now several Federal agencies support the Internet, and the number is growing.

Research by David Patterson at Berkeley and John Hennessy at Stanford promotes 'reduced instruction set' computing. IBM selects the disk operating system DOS, developed by Microsoft, to operate its planned PC.

1981

By the beginning of the year, more than 200 computers in dozens of institutions have been connected in CSNET. BITNET, another startup network, is based on protocols that include file transfer via e-mail rather than by the FTP procedure of the ARPA protocols.

The Internet Working Group of DARPA publishes a plan for the transition of the entire network from the Network Control Protocol to the TCP/IP protocols developed since 1974 and already in wide use (RFC 801).

At Berkeley, Bill Joy incorporates the new TCP/IP suite into the next release of the Unix operating system. The first 'portable' computer is launched in the form of the Osborne, a 24-pound suitcase-sized device.

The IBM PC is launched in August 1981.

Meanwhile, Japan mounts a successful challenge to US chip makers by producing 64-kbit chips so inexpensively that U.S. competitors charge the chips are being 'dumped' on the U.S. market.

1982

Time magazine names 'the computer' its 'Man of the Year.' Cray Research announces plans to market the Cray X-MP system in place of the Cray-1. At the other end of the scale, the IBM PC 'clones' begin appearing.

An NSF panel chaired by the Courant Institute's Peter Lax reports that U.S. scientists lack access to supercomputers. It contains the testimony of University of Illinois astrophysicist Larry Smarr that members of his discipline have been forced to travel to Germany to use American-made supercomputers.

The period during which ad hoc networking systems have flourished has left TCP/IP as only one contender for the title of 'standard.' Indeed, the International Organization for Standards (ISO) has written and is pushing ahead with a 'reference' model of an interconnection standard called Open Systems Interconnection (OSI) - already adopted in preliminary form for interconnecting DEC equipment. But while OSI is a standard existing for the most part on paper, the combination of TCP/IP and the local area networks created with Ethernet technology are driving the expansion of the living Internet.

Drew Major and Kyle Powell write Snipes, an action game to be played on PC's over the network. They package the game as a 'demo' for a PC software product from SuperSet Software, Inc. This is the beginning of Novell.

Digital Communications Associates introduces the first coaxial cable interface for micro-to-mainframe communications.

1983

In January, the ARPANET standardizes on the TCP/IP protocols adopted by the Department of Defense (DOD). The Defense Communications Agency decides to split the network into a public 'ARPANET' and a classified 'MILNET, ' with only 45 hosts remaining on the ARPANET. Jon Postel issues an RFC assigning numbers to the various interconnected nets. Barry Leiner takes Vint Cerf's place at DARPA, managing the Internet.

Numbering the Internet hosts and keeping tabs on the host names simply fails to scale with the growth of the Internet. In November, Jon Postel and Paul Mockapetris of USC/ISI and Craig Partridge of BBN develop the Domain Name System (DNS) and recommend the use of the now familiar user@host.domain addressing system.

The number of computers connected via these hosts is much larger, and the growth is accelerating with the commercialization of Ethernet.

Having incorporated TCP/IP into Berkeley Unix, Bill Joy is key to the formation of Sun Microsystems. Sun develops workstations that ship with Berkeley Unix and feature built-in networking. At the same time, the Apollo workstations ship with a special version of a token ring network.

In July 1983, an NSF working group, chaired by Kent Curtis, issues a plan for 'A National Computing Environment for Academic Research' to remedy the problems noted in the Lax report. Congressional hearings result in advice to NSF to undertake an even more ambitious plan to make supercomputers available to US scientists.

1984

In January, Apple announces the Macintosh. Its user-friendly interface swells the ranks of new computer users.

Novelist William Gibson coins the term cyberspace in Neuromancer, a book that adds a new genre to science fiction and fantasy.

The newly developed DNS is introduced across the Internet, with the now familiar domains of .gov, .mil, .edu, .org, .net, and .com. A domain called .int, for international entities, is not much used. Instead, hosts in other countries take a two-letter domain indicating the country. The British JANET explicitly announces its intention to serve the nation's higher education community, regardless of discipline.

Most important for the Internet, NSF issues a request for proposals to establish supercomputer centers that will provide access to the entire U.S. research community, regardless of discipline and location. A new division of Advanced Scientific Computing is created with a budget of $200 million over five years.

Datapoint, the first company to offer networked computers, continues in the marketplace, but fails to achieve critical mass.

1985

NSF announces the award of five supercomputing center contracts:

Cornell Theory Center (CTC), directed by Nobel laureate Ken Wilson;

The John Von Neumann Center (JVNC) at Princeton, directed by computational fluid dynamicist Steven Orszag;

The National Center for Supercomputing Applications (NCSA), directed at the University of Illinois by astrophysicist Larry Smarr;

The Pittsburgh Supercomputing Center (PSC), sharing locations at Westinghouse, the University of Pittsburgh, and Carnegie Mellon University, directed by Michael Levine and Ralph Roskies;

The San Diego Supercomputer Center (SDSC), on the campus of the University of California, San Diego, and administered by the General Atomics Company under the direction of nuclear engineer Sid Karin.

By the end of 1985, the number of hosts on the Internet (all TCP/IP interconnected networks) has reached 2,000.

MIT translates and publishes Computers and Communication by Dr. Koji Kobayashi, the Chairman of NEC. Dr. Kobayashi, who joined NEC in 1929, articulates his clear vision of 'C & C', the integration of computing and communication.
1986

The 56Kbps backbone between the NSF centers leads to the creation of a number of regional feeder networks - JVNCNET, NYSERNET, SURANET, SDSCNET and BARRNET - among others. With the backbone, these regionals start to build a hub and spoke infrastructure. This growth in the number of interconnected networks drives a major expansion in the community including the DOE, DOD and NASA.

Between the beginning of 1986 and the end of 1987 the number of networks grows from 2,000 to nearly 30,000.

TCP/IP is available on workstations and PCs such as the newly introduced Compaq portable computer. Ethernet is becoming accepted for wiring inside buildings and across campuses. Each of these developments drives the introduction of terms such as bridging and routing and the need for readily available information on TCP/IP in workshops and manuals. Companies such as Proteon, Synoptics, Banyan, Cabletron, Wellfleet, and Cisco emerge with products to feed this explosion.

At the same time, other parts of the U.S. Government and many of the traditional computer vendors mount an attempt to validate their products being built to the OSI theoretical specifications, in the form of the Corporation for Open Systems.

USENET starts a major shakeup which becomes known as the 'Great Renaming'. A driving force is that, as many messages are traveling over ARPANET, desirable new news groups such as 'alt.sex' and 'alt.drugs' are not allowed.

1987

The NSF, realizing the rate and commercial significance of the growth of the Internet, signs a cooperative agreement with Merit Networks which is assisted by IBM and MCI. Rick Adams co-founds UUNET to provide commercial access to UUCP and the USENET newsgroups, which are now available for the PC. BITNET and CSNET also merge to form CREN.

The NSF starts to implement its T1 backbone between the supercomputing centers with 24 RT-PCs in parallel implemented by IBM as 'parallel routers'. The T1 idea is so successful that proposals for T3 speeds in the backbone begin.

In early 1987 the number of hosts passes 10,000 and by year-end there have been over 1,000 RFCs issued.

Network management starts to become a major issue and it becomes clear that a protocol is needed between routers to allow remote management. SNMP is chosen as a simple, quick, near term solution.

1988

The upgrade of the NSFNET backbone to T1 completes and the Internet starts to become more international with the connection of Canada, Denmark, Finland, France, Iceland, Norway and Sweden.

In the US more regionals spring up - Los Nettos and CERFnet both in California. In addition, Fidonet, a popular traditional bulletin board system (BBS) joins the net.

Dan Lynch organizes the first Interop commercial conference in San Jose for vendors whose TCP/IP products interoperate reliably. 50 companies make the cut and 5,000 networkers come to see it all running, to see what works, and to learn what doesn't work.

The US Government pronounces its OSI Profile (GOSIP) is to be supported in all products purchased for government use, and states that TCP/IP is an interim solution!

The Morris WORM burrows on the Internet into 6,000 of the 60,000 hosts now on the network. This is the first worm experience and DARPA forms the Computer Emergency Response Team (CERT) to deal with future such incidents.

CNRI obtains permission from the Federal Networking Council and from MCI to interconnect the commercial MCI Mail service to the Internet. This broke the barrier to carrying commercial traffic on the Internet backbone. By 1989 MCI Mail, OnTyme, Telemail and CompuServe had all interconnected their commercial email systems to the Internet and, in so doing, interconnected with each other for the first time. This was the start of commercial Internet services in the United States (and possibly the world).

1989

The number of hosts increases from 80,000 in January to 130,000 in July to over 160,000 in November!

Australia, Germany, Israel, Italy, Japan, Mexico, Netherlands, New Zealand and the United Kingdom join the Internet.

Commercial e-mail relays start between MCIMail through CNRI and Compuserve through Ohio State. The Internet Architecture Board reorganizes again reforming the IETF and the IRTF.

Networks speed up. NSFNET T3 (45Mbps) nodes operate. At Interop 100Mbps LAN technology, known as FDDI, interoperates among several vendors. The telephone companies start to work on their own wide area packet switching service at higher speeds - calling it SMDS.

Bob Kahn and Vint Cerf at CNRI hold the first Gigabit (1000Mbps) Testbed workshops with funding from ARPA and NSF. Over 600 people from a wide range of industry, government and academia attend to discuss the formation of 6 gigabit testbeds across the country.

The Cray 3, a direct descendant of the Cray line, starting from the CDC 6600, is produced.

In Switzerland at CERN Tim Berners-Lee addresses the issue of the constant change in the currency of information and the turn-over of people on projects. Instead of an hierarchical or keyword organization, Berners-Lee proposes a hypertext system that will run across the Internet on different operating systems. This was the World Wide Web.

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Landweber's proposal has many enthusiastic reviewers. At an NSF-sponsored workshop, the idea is revised in a way that both wins approval and opens up a new epoch for NSF itself. The revised proposal includes many more universities. It proposes a three-tiered structure involving ARPANET, a TELENET-based system, and an e-mail only service called PhoneNet.

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The World Wibe Web appeared

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Google was invented in the USA

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The Social Media age

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, Facititation-Labour Market Advisor, Intercultural Education Specialist and Social Media Guru

Published on

This presentation was researched and developed to introduce the small businesses and not for profits that the idea of social media is not a new fad. My goal was to break down any preconceived notions about the power of Social Media today and in the future.

1. 1. A brief history of ...Social Media By: Connie Piggott

2. 2. What is Social Media?? Social Media is "an umbrella term that defines the variousactivities that integrate technology, social interaction, and the construction of words, pictures, videos, and audio." http://www.wikipedia.org Media is an instrument of communication, so Social Media would be a social channel of communication.

3. 3. What is Social Media?? A fancy way to describe the zillions of conversations people are having online 24/7.Social Media is the chatter occurring between customers,observers, critics, companies and it's a conversation that's happening right now whether you're involved or not.

4. 4. A Pre-Internet Timeline Social Media

5. 5. Social Media Timeline 500 - 1500AD, Pigeon Posting Pigeon post is the use of homing pigeons to carry messages. 1792, The Telegraph A system of conveying information by means of visual signals, using towers with pivoting shutters. 1836, Morse Code A method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood without special equipment.

6. 6. Social Media Timeline 1836, Pneumatic Mail * A system to deliver letters through pressurized air tubes. 1875, Telephone * Point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other. 1891, Radio * Radio is the transmission of signals through free space by electromagnetic waves with frequencies.

7. 7. Social Media Timeline 1971, The First Email * Sent by computer engineer Ray Tomlinson, the email was simply a test message to himself. 1969, CompuServe The first commercial online service in the United States. 1978, Bulletin Board System(BBS) * Coin operated computer terminals located in neighbourhoods. It allowed user to post messages.

8. 8. "Our head of social media is the customer." - McDonald's"What used to be cigarette breaks could turn into 'social media breaks' as long as there is a clear signal and IT isn't looking." David Armano "You can be professional while also 'keeping it real' with yourcustomers. By interacting with customers in a less formal way,you'll build a strong human connection that helps build brand loyalty." David Hauser, co-founder of Grasshopper

9. 9. The only way to put out a social-media fire is with social-media water." Ramon DeLeon, managing partner of six Domino's stores in Chicago

10. 10. The future of Social Media ...will be like air."

11. 11. For more information For more information on additional Employment and Diversity Workshop Topics 48 Fifth Street Suite 310, Chatham, ON N7M 4V8 Phone: 519.354.74.24 Fax 519.354.5758 Website: www.adultlanguageandlearning.ca Email us at connie@adultlanguageandearning.ca Thank You!

12. 12. References http://www.mofo.com/files/Uploads/Images/A-Short-History-of-Social-Media.pdf http://socialtimes.com/short-history-of-social-media_b76075 http://bootcampdigital.com/about/why-social-media/ http://www.smiletemplates.com/ http://www.pooh.cz/upload/img/1000/social_media_landscape_fred_lavazza.png http://flowerng.files.wordpress.com/2009/12/social_media_timeline-779402.jpghttp://blog.hubspot.com/blog/tabid/6307/bid/6005/22-Educational-Social-Media-Diagrams.aspx www.collectorsarmory.com http://www.bigsiteofamazingfacts.com/what-does-the-term-post-mean-and-where-did-the- word-mail-come-from http://en.wikipedia.org/wiki/Morse_code#Development_and_history http://en.wikipedia.org/wiki/Middle_Ages http://en.wikipedia.org/wiki/Pigeon_post http://en.wikipedia.org/wiki/Pneumatic_post http://heidicohen.com/social-media-definition/ http://en.wikipedia.org/wiki/Morse_code#Development_and_history http://en.wikipedia.org/wiki/Morse_code

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Facititation-Labour Market Advisor, Intercultural Education Specialist and Social Media Guru Published on This presentation was researched and developed to introduce the small businesses and not for profits that the idea of social media is not a new fad. My goal was to break down any preconceived notions about the power of Social Media today and in the future.

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Think about the future...