Engineering Concepts Tutorials

Engineering Concepts Tutorials for UML, Operations Research, Numerical Methods and many more.
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Introduction First and foremost, we need to define what we mean by Natural Language Processing or NLP. The first and most general definition is simply that NLP encompasses anything a computer needs to do in order for it to understand natural language (whether it be typed or spoken). We'll...
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The second step in NLP is called syntax. Once the basic of a sentence have been determined to be correct using morphology, syntax can be used to check they are properly combined. The most widely used method of checking a sentence is syntactically correct is to attempt to use a grammar to...
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Newspapers Internet magazines came with cover stories when Denial of service (DoS) attacks assaulted a number of large and very successful companies' websites last year. Those who claim to provide security tools were under attack. If Yahoo, Amazon, CNN and Microsoft feel victim to DoS attacks, can...
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WAP stands for Wireless Application Protocol, a secure specification that allows users to access information instantly via handheld wireless devices such as mobile phones, pagers, two-way radios, smartphones and communicators. The idea comes from the wireless industry, from companies such as...
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Adware Adware is any computer program or software package in which advertisements or other marketing material are included with or automatically loaded by the software and displayed or played back after installation. The justification for adware is that it helps recover programming...
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So, what is a cipher anyway? A cipher is an algorithm or set of algorithms that systematically convert a sender's intended message text to what appears to be meaningless text, which can be converted back to the sender's original message only by authorized recipients. The following terms and...
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What is a firewall? A firewall protects networked computers from intentional hostile intrusion that could compromise confidentiality or result in data corruption or denial of service. It may be a hardware device running on a secure host computer. In either case, it must have at least...
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The term Web services describe a standardized way of integrating Web-based applications. Web services technology represents an important way for businesses to communicate with each other and with clients as well. It is a truly distributed computing model in which applications talk to one another....
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Routing and switching can be two terms that are difficult to differentiate, so here is a simple explanation that may help to clarify things. First of all switching and routing are not the same thing. Switching involves moving packets between devices on the same network. Conversely, routing involves...
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Hard Drives are one of the most important parts on your computer. They are also one of the most expensive. All hard drives share a basic structure and are composed of the same physical features. However, not all hard drives perform the same way, as the quality of the parts of the hard drive will...
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Imagine a network based on inexpensive, high volume chipsets, with data rates up to 12Mbit/second and a 25 meter distance capacity, designed from the start with “plug and play” in mind. Add 5 Volt power, with up to 500mA current capacity, and compatibility with many consumer products. ...
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Q: What are the seven layers of the OSI model? A: The layers are physical, data link, network, transport, session, presentation, and application layers. Q: In the TCP client-servel model, how does the three-way handshake work in opening connection? A: The client first sends a...
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Direct Attached Storage (DAS) Today, greater than 95% of all computer storage devices such as disk drives, disk arrays and RAID systems are directly attached to a client computer through various adapters with standardized software protocols such as SCSI, Fibre Channel and others. This type of...
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The Web has become the most significant technology of the 21st century. The nature and structure of the Web, as well as the way we use it, have been continuously changing. The Web evolution is huge that we have started to place the evolution—past, current, and anticipated—into different stages as...
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This is known to all that AMD is the only one competitor of Intel’s market. In this “Dual-Core” era of CPU’s AMD is going to launch their APU or Accelerated Processing Unit in this year. Not only AMD Intel is also working with this architecture and hopefully they will also release their new...
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Cyclomatic Complexity its a type of white box testing for Structural testing use under reference of code complexity. Facts about why White Box Testing? Most programe coding represents what the program actually dose and not what intended to do. It minimizes delay between defect injection...
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All software developers must have used some VCS (Version Control System) at a point of their career, most would say SVN, which is currently the widely used VCS in the software industry. Enter Git, created by Linus Torvalds in response to missing features & performance issues in the other VCSs,...
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Amazon SQS (Simple Queue Service) is yet another amazing product from Amazon, which provides a reliable, easy & highly scalable hosted queue service for storing messages, which can be accessed by any computer on any network. This provides a way to simply move around messages between computers or...
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After Introduction to Git VCS, this is the second installment in the series, here we'll be see how to setup a workflow, copying repositories & maintaining a central repository to help developers/contributors collaborate. Cloning In most of the other version control systems, checking out is a...
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APNS or Apple Push Notification Service, is service for Apple devices like iPhone, iPad & iPod to send 3rd party notifications to devices. It was launched with iOS version 3.0, it's very helpful for the app developers as they do not have to frequently poll for updates, instead they can submit the...
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