DATA COMMUNICATION COEN 3193 Assignment No. 1 Brief History of Data Communication Submitted by: Camille A. Bonito BSCpE IV-2 Submitted to: Florinda H. Oquindo TIMELINE OF HISTORY OF DATA COMMUNICATION 1800 Telegraph defined from the Greek... TELE = Afar GRAPHOS = Write 1809 First telegraph in Bavaria. Samuel Soemmering. Used 35 wires with gold electrodes in water. Detection at distant end 2000 feet away was by the amount of gas caused by electrolysis. 1828 First telegraph in the USA
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Conceptual Data Models for Database Design Database Design Process The database design process consists of a number of steps listed below. We will focus mainly on step 2‚ the conceptual database design‚ and the models used during this step. Step 1: Requirements Collection and Analysis ▪ Prospective users are interviewed to understand and document data requirements ▪ This step results in a concise set of user requirements‚ which should be detailed and complete. ▪ The functional
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CIS 501: Information Systems for Managers Data Mining Problems Introduction Problem 1: Data-Based Decision Making Problem 2: Market Basket Analysis: Association Analysis Problem 3: Market Basket Analysis: Concept Tree/Sequence Analysis Problem 4: Decision Tree Problem 5: Clustering/Nearest Neighbor Classification Problem 6: Clustering Problem 1: Data-Based Decision Making Supermarket Product Placement Suppose that we are responsible for managing product placement within a
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FPF090 MEMBER’S DATA FORM (MDF) FOR HDMF USE ONLY Pag-IBIG MID NUMBER REGISTRATION TRACKING NUMBER 1. Accomplish this form in two (2) copies. 2. Type or print all entries in BLOCK or CAPITAL LETTERS. 3. The “NAME EXTENSION” shall refer to JR.‚ II‚ III and the like. INSTRUCTIONS 7. On the “OCCUPATION’ portion‚ indicate occupation based on the provided List of Occupation. 8. On the “BENEFICIARIES” portion‚ the provision on the Intestate Succession‚ as 4.
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DATA FLOW DIAGRAM Group#7 Nugao Oserin Obongen The Data Flow Diagram (DFD) • a graphical representation of the flow of data through an information system. It enables you to represent the processes in your information system from the viewpoint of data. The DFD lets you visualize how the system operates‚ what the system accomplishes and how it will be implemented‚ when it is refined with further specification. • Data flow diagrams are used by systems analysts to design information-processing systems
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1. Describe the management style at Rondell Data Corporation. Rondell Data Corporation is a fairly small company‚ employing roughly about 800 employees. This has been a steady increase since the company began in 1939. The current management style does not seem to be able to manage the volume and span of activities throughout the company. The management style of the company seems to be a functional structure. There are five levels of hierarchy in the organization chart. There are many levels of
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Data Trappers‚ Inc. When examining whether or not B&T should be permitted to serve as the independent auditor of Data Trappers‚ Inc. (DTI)‚ we must first look at what it means to be an independent auditor. For an external auditor to be independent they need to be independent of the company they are auditing in both fact and appearance‚ meaning they have to look as if they aren’t connecting to a company in any way and they must also not actually be connected to a company in any way. As well
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TARGET DATA BREACH 2013/14 Introduction There are many types of breaches that can occur when it comes to secure systems and networks. The target breach of 2013/14 was due to human error. It is said that the company had easily stolen credentials. If there was the necessary secure measures taken‚ this breach could have been stopped. Target did not have an adequate firewall which is why the hackers were able to corrupt the system and steal personal information and credit card information. This whole
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Graphical Representation of Data Chapter 3 ☞ (Paste Examples of any graphs‚ diagrams and maps showing different types of data. For example‚ relief map‚ climatic map‚ distribution of soils maps‚ population map) REPRESENTATION OF DATA Besides the tabular form‚ the data may also be presented in some graphic or diagrammatic form. “The transformation of data through visual methods like graphs‚ diagrams‚ maps and charts is called representation of data.” The need of representing data graphically: Graphics
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Effect of various data collection techniques on quality and reliability of data. By Maria Latif- 12371 FozanMosadeq -11426 Muhammad Ismail - Muhammad Zubair Agha -11591 ZainabMorawala - 11516 A research report Submitted in partial fulfillment of the requirements For the degree of Bachelor of Business Administration To Iqra University Research Center (IURC) At the Iqra University‚ Main campus‚ Karachi Karachi‚ Pakistan July‚ 2012 ACKNOWLEDGEMENTS We
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