Engineering Concepts Tutorials

Engineering Concepts Tutorials for UML, Operations Research, Numerical Methods and many more.
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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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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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Public Key Infrastructure Public key infrastructure is an architecture which supports mechanisms like integrity and confidentiality. It is heavily used in e-commerce, where business transactions are frequent and should be much secured. In fact business transaction starts only after the two...
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Introduction Pocket Pc is a handheld sized computer.It runs on Microsoft windows mobile operating systems.It may have capability to run on alternative operating system like NetBSD,Linux,Android (or) others.It has many of the capability of modern desktop PC Pocket PC is an evolution from...
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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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Introduction Just imagine, At the end of a busy day, you are sitting on the sofa and you need a hot cup of tea… You just thought for a cup of tea, and it step to you! Don’t think me a mad or I’m not joking! This impossible thing can be possible by the help of BMI or Brain Machine Interfacing...
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The article continues the discussion on Algorithms available in Symmetric Key cryptography. It explains the whereabouts of DES algorithm. Due to the limitations of DES on security context, we shall include Triple DES in the scope. Triple DES is a stronger form of DES algorithm. Understanding...
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A set of processes is deadlocked if each process in the set is waiting for an event that can be caused by another process in the set. The events that we are mainly concerned with are resource acquisition and release. The resources may be physical resources (CPU, I/O devices, memory) or logical...
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ADSL (Asymmetrical Digital Subscriber Line) - A means of delivering high communication speeds over existing copper phone lines. Analog - The technology used by the original mobile phones. Like traditional radio broadcasts, phone conversations and information are transmitted in the form of a...
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In this article we will explore the two main choices of graphic format that can be used on the Web to represent simple graphics, schemas or logos: · GIF (stands for Graphics Interchange Format) was developed in the late 1980's and it is still widely used. · PNG (Portable Network Graphics) was...
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Advanced Encryption Standard is a block cipher symmetric encryption algorithm. It is preferred to protect network communications, personal data etc using AES over DES. It encrypts or decrypts the data through several rounds. Categorization It is categorized under three types of key sizes –...
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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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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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Analytics and its tools have been very well received by bigger corporations in the recent past. This technical term has gained a lot of importance in the technology world. Corporations such as Google, Facebook are investing heavily to create a unique platform to do big data analysis. This analysis...
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Git is popular distributed version control system, it was developed by inventor of Linux, Linus Torvalds. Git has been gaining huge popularity in the ope-source community as well as in the corporate world due to it's distributed nature and efficiency. I had a written a few articles on Git to...
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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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DKIM stands for DomainKeys Identified Mail, it helps associate a domain with an email message to help prove the authenticity of the message. DKIM is a successor of DomainKeys developed by Yahoo!, it was deprecated in 2007 but some providers still use it. DKIM was created by an informal group and...
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Lossless Encoding is a method of encoding that allows no loss of data while converting to and from encoded data to normal data. Lossless Audio Encoding Q: Why special encoding methods for audio? A : Lossless encoding is not only done in audio, video etc. We actually have a ton of genric...
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Have you ever wondered why e-mail attachments are encoded? Well read ahead tro find the answer to this. Internet e-mail and Usenet news posts were designed for plain text messages. As such, many systems expect the messages to only contain printable characters from the 7-bit (first bit of the...
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