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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Page 2 Data communications (Datacom) is the engineering Datacom) discipline concerned with the communication between devices. A network is a set of devices (often referred to as nodes) nodes) connected by communication links. links. A computer network is any set of computers or devices connected to each other via some form of transmission medium with the ability to exchange data. Here information is presented in a form which is agreed upon by the parties creating and using the data. A computer
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What To Do When Your Transmission Is Leaking Fluid If you happen to spot a puddle of fluid under your car after it has been parked for awhile‚ try to determine the color of it if you can. A puddle under the car isn’t always a sign of trouble since water will drip out of your air conditioner under normal circumstances. However‚ that water is clear. If the fluid you see is brown or red‚ it might be transmission fluid. Driving your car with a transmission leak could be dangerous because you could do
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____________________________________________ ___________PROJECT REPORT___________ CDMA Transmission Model An Overview in Matlab SUBMITTED TO: Engr. Abdul Basit SUBMITTED BY: Nadeem Raza 09-ECT-05 Amir Mehmood 09-ECT-22 Mohammad Shoaib 09-ECT-29 Saad Najaf Khan 09-ECT-38 Date: 15th June‚ 2012 UNIVERSITY OF ENGINEERING AND TECHNOLOGY TAXILA SUB CAMPUS CHAKWAL Introduction: CDMA is modulation technique to transmit data over a whole frequency spectrum. It was developed by Qualcomm as a better
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Question: Discuss two or more of the following issues: story vs. plot‚ range of narration‚ depth of narration‚ and narrative structure. In addition‚ pay attention to the film’s stylistic choices‚ and how they relate to formal strategies in the narrative and narration. The film "Speed"‚ starring Keanu Reeves and Sandra Bullock is classed as a film where narrative plays a very large role in delivering the viewer with a broader understanding of the story or plot of the film. Narrative meaning a "chain
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*If you ever use this‚ please e-mail me at antisoma@hotmail.com. I ’d just like to know. Cryptosporidium parvum: Transmission and Infection Cryptosporidium parvum is a protozoan intestinal parasite causing a short-term enteric illness in individuals with functioning immune systems‚ and can cause a potentially fatal infection in immunosuppressed individuals. Because of C. parvum ’s resistance to many of the procedures used to process drinking water and food‚ and the parasite ’s extremely
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the faulty cable. For Harry Jackson‚ he stage of moral development is at the pre-conventional level. At this level‚ self-interest is emphasized and values are adhered to in order to avoid punishment and also be rewarded. It can be proved by his intentionally to ignore the result of the product test and do not take action to correct the problem. It is because he does not think of the well being of the civilians and military personnel because he more worries about getting punishment from higher up if
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and media are overlapping social processes producing and interpreting symbols and rituals through which people express and contest social meaning including their relationship to the transcendent or sacred.” (Campbell‚ 2010) This message was delivered from Pope John Paul II for the 23rd World Communications Day in 1989‚ “The question confronting the Church today in not any longer whether the man in the street can grasp a religious message‚ but how to employ the communications media so as
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"Data Compression and Data Processing” Please respond to the following: * Explain whether or not you believe there is a discernible difference in efficiency between compressing and decompressing audio data and compressing and decompressing image data. Provide at least three reasons for your argument. There are efficiency differences between a given compressions for audio or image‚ this is due to: 1. The difference in data‚ example bmp‚ jpg‚ gif of the same image‚ mp3‚ wav‚ ogg for
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Reasons People Speed Drivers are supposed to abide by the speed limit while driving‚ but they often exceed it for several reasons. The reasons seem to serious sometimes‚ but most cases‚ they seem to funny and ridiculous. Some people go over speed because they are late for work or private appointment. Furthermore‚ other people do over speed because of their physiological emergency. Every speeding has completely diverse reasons under specific driving circumstances. First‚ people do
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