Networking Why use a Network? Quite simply explained we use networks for communication between computers‚ sharing of data and peripherals. In the business world we use networks for ease of administration and to cut costs. Sharing data example imagine an office with 5 secretaries working on 5 different computers‚ one requires a file from another computer in a non networked office this file would have to be written to a portable media then loaded onto the computer. In a networked office the file could
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Ethernet Systems communicating over Ethernet divide a stream of data into shorter pieces called frames. Each frame contains source and destination addresses and error-checking data so that damaged data can be detected and re-transmitted. The Ethernet provides services up to and including the data link layer. Since its commercial release‚ Ethernet has retained a good degree of compatibility. Features such as the 48-bit MAC address and Ethernet frame format have influenced other networking protocols
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extraordinary gentlemen/women‚ does most of the work. What exceptional qualities make these people extraordinary? From the first two chapters I see that there are three types of people who possess these exceptional qualities to trigger an epidemic – Connectors‚ Specialist /
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He was a connector‚ a salesman‚ and a maven. He was a connector because he had so many connections to so many people‚ being in the public eye already due to his infamous role in “The Beatles”. Malcolm Gladwell describes connectors as the social equivalent of a computer network hub. They usually know people across an array of social‚ cultural‚ professional‚ and economic
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1) Introduction 1.1) Purpose [1] Book: Fabricating Printed Circuit Boards [2] http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010265 [3] http://nnp.ucsd.edu/phy120b/pic_manuals_pdf/pic18F_1320.pdf Various schematic symbols and diagrams are familiarized and a schematic is a collection of electronic symbols connected together with virtual “wires”. When fabricating a printed circuit board (PCB)‚ a schematic is needed to provide input (a netlist) to the layout and routing tool (Varteresian
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hexagon applied to represent conditions before/after a function and connectors join or split the process flow between the elements and represent the process flow. To emphasise the point EPC’s consists of the following elements events‚ functions‚ control flow connected by arcs. Events represent circumstances or conditions of a function‚ while functions describe changes in process from a starting point to end result and connectors are represented by AND‚ OR or XOR (la Rosa‚ Dumas‚ ter Hofstede‚ Mendling
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via CAT 5 UTP cable. CAT 5 UTP was the cable of choice‚ because it is affordable and is able to support the network speed desired. The Allied Telesis Managed Ethernet Switch was selected for is Active SFP bays and the additional ports with RJ-45 connectors. The Buffalo Business Switch Gaga Switching HUB in addition to the rationale mentioned above was selected for its performance at a rate of 48 Gbps. The fact that it is managed allows for better upgrades and extensions/expansions. It is far less
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adjusted baud rate. This data is then transmitted to the microcontroller on the receiver side with the help of the wireless link maintained by the RF module. This received data is then sent to the receiver PC serially. The RS-232 cable (DB-9 connector in this case) is used to coordinate the serial communication between the computer and the microcontroller. The RS232 standard is not TTL compatible‚ but the 8051 has two pins‚ that are used specifically for transferring (P3.1) and receiving data
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Control of Dot Matrix and 7-Segment MDA-8086 Kit – PPI Application Birzeit University Information Technology Faculty Computer Systems Engineering Department Abstract This experiment aims at understanding and testing the dot matrix structure‚ and the principle of display using the 82C55 Programmable Peripheral Interface devices. The MDA 8086 subsystem will be used to control the display of patterns‚ digits‚ and characters. The display elements are: - An 8x8 LEDs dot matrix - A single 7-segment display
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Expeditionary Force 21 (EF-21) provides a new operational concept that prepares the Marine Corps for the challenges of the future operating environment. In a future environment that blurs the line between state and non-state actors armed with modern technology that eliminates the U.S.’s technological advantage‚ the Marine Corps must be able to provide “the right force in the right place at the right time.”(pg 4‚8) While staying true to the Maine Corps’ expeditionary nature‚ it focuses on maintaining
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