DATA COMMUNICATION (Basics of data communication‚ OSI layers.) K.K.DHUPAR SDE (NP-II) ALTTC ALTTC/NP/KKD/Data Communication 1 Data Communications History • 1838: Samuel Morse & Alfred Veil Invent Morse Code Telegraph System • 1876: Alexander Graham Bell invented Telephone • 1910:Howard Krum developed Start/Stop Synchronisation ALTTC/NP/KKD/Data Communication 2 History of Computing • 1930: Development of ASCII Transmission Code • 1945: Allied Governments develop the First Large Computer
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All Quiet on the western Front The earth‚ as in the soil beneath our feet‚ is taken for granted every single day‚ but never by a soldier on the front lines. Erich Maria Remarque explains this through his character Paul Bäumer in the excerpt of his novel All Quiet on the Western Front. Paul is explaining the effects that war on the front can leave with a soldier‚ the hopelessness‚ instinct of an animal‚ and appreciation for things as simple as the earth that we walk on. While explaining these effects
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Vulnerabilities Hardware vulnerabilities. According to the network infrastructure diagram‚ we can see that there are 5 servers‚ 2 routers‚ 1 switcher‚ and 1 firewall. Each one of those servers is operate by a specific department‚ and all of those servers are connected to the main database server.The connection between each department’s server to the main database server take
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simplicity‚ robustness‚ stability‚ fairness‚ optimality‚ and efficiency. 12.5 For fixed routing‚ a single‚ permanent route is configured for each sourcedestination pair of nodes in the network. 12.6 With flooding‚ a packet is forwarded to all other switches so that eventually all routes between source and destination are traversed. 12.7 Advantages: (1) An adaptive routing strategy can improve performance‚ as seen by the network user. (2) An adaptive routing strategy can aid in congestion control
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Brody Contreras 4/16/13 The Road Homework Annotation Guide: 1. I agree. If modern civilization were to end‚ I think that man kind would slowly die away after it’s fall because modern man is not capable of surviving the harsh Environment of the world. We will especially fall due to the lack of resources and will kill each other off for food. 2. I disagree strongly. Many people are evil people because they enjoy bringing pain to others and are selfish‚ thus worrying about only their
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What is a hyper-connected world? It is the accelerating inter-connectivity between people globally at all time. This increasing connectivity has in so many ways made our lives so much easier and has also improved the standard of our lives greatly. This inter-connection has virtually managed to influence every aspect of our day to day lives. Social media‚ e-commerce‚ smartphones‚ healthcare – you name it! Digital connectivity has permeated it all and in fact our dependence on it is growing exponentially
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EasyJet Case Analysis EasyJet Airline Company Limited is a British airline headquartered at London Luton Airport. It is the largest airline of the United Kingdom‚ measured by number of passengers carried‚ operating domestic and international scheduled services on over 500 routes between 118 European‚ North African‚ and West Asian airports. Its founder and CEO Stelios Haji-Ioannou is known for innovative ideas and pioneer in the advertising/publicity in the airline industry. Business
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Video 1.06 Storage Devices Hard Drives Hard drives are comprised of platters Read/Write heads for each platter Read and write on top and bottom of platter Never exposed to magnets Data loss may occur 137 GB Limit Hard Drive size limited to 137GB Not a physical limit Limited by address the system can support 28 bit communications limited to 268‚435‚555 addresses equates to 137 GB Flash BIOS to upgrade hard drive interfaces PATA‚ SATA‚ SCSI‚ USB‚ and FireWire most common is the
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TCS Connected Universe Platform Innovation labs The emergence of Internet of Things (IoT) has opened a new realm of opportunities for industries globally. To make the most of these opportunities‚ you need sensor-based applications that offer intelligent services‚ and are least intrusive for customers. To achieve this‚ you will need applications that can handle sensor data‚ and platforms that can deploy these applications optimally. Towards this‚ Tata Consultancy Services’ (TCS) presents the TCS
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• Steps for sending a packet out - Step 1 - (IPv4 Routing Lookup) --> Goal is to decide on the following entities first. - Longest match / Lowest AD / Lowest Metric / Overlapping Routes(Multiple routes to the same destination in the routing table) / Policy Routing (Will override all the above steps) - Outgoing interface - Next-hop Step 2 - (IPv4 Switching Method) --> Goal is to move packets between interfaces. Load Balancing occurs at this stage. Even
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