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CGI (Common Gateway Interface)
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Date:2010-01-02 04:56:36Click:8Comment:0
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| CGI (Common Gateway Interface) is a very popular technique to allow the html page on the client to run programs on the server. Typical examples of these include, - counters - feedback forms - information requests |
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ActiveX used in internet
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Date:2010-01-02 04:56:06Click:3Comment:0
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| This is a programming method proposed by Microsoft to reduce the success of Java - It has been part of the antitrust suit against Microsoft by the Justice Department. It will only work on IBM PC computers running the `Internet Explorer' browser from |
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Graphics introduction in Internet
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Date:2010-01-02 04:54:59Click:5Comment:0
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| Two good formats are, GIF - well suited to limited color images - no loss in compression. Use these for line images, technical drawings, etc JPG - well suited to photographs - image can be highly compressed with minimal distortion. Use these for pho |
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What is Clients and Servers
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Date:2010-01-02 04:51:41Click:9Comment:0
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| Some computers are set up to serve others as centers of activity, sort of like a campus library. Other computers are set up only as users, like bookshelves in a closed office. The server is open to all, while the private bookshelf has very limited a |
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Is the OSI model able to describe all networked systems?
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Date:2009-11-24 04:15:10Click:9Comment:0
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| ans. The OSI model is just a model, so it can be used to describe parts of systems, and what their functions are. When used to describe actual networking hardware and software, the parts may only apply to one or two layers. Some parts may implement |
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A ladder logic program example
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Date:2008-10-29 03:06:59Click:267Comment:0
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| Before the advent of solid-state logic circuits, logical control systems were designed and built exclusively around electromechanical relays. Relays are far from obsolete in modern design, but have been replaced in many of their former roles as logi |
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Introduction of PLC Convert
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Date:2008-08-18 10:40:10Click:382Comment:2
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| PLC Convert is an application which can be used to convert Siemens (TI) PLC ladder logic to run on an Omron PLC. The ladder logic listing file is first loaded into PLC Convert. Then the Build function is run on to convert each rung to the correspond |
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PLC analogue module improvements
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Date:2008-07-29 09:16:03Click:62Comment:0
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| Following the recent launch of higher density analogue modules for the Pentra and Microsmart PLC ranges, Idec is now upgrading the original two- and three-channel analogue and thermocouple modules. These are available in the following combinations: * |
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Application on safty of PLC
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Date:2008-03-01 01:38:46Click:114Comment:0
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| By Adam Mullis The changing environment of safety compliance and enforcement has increased the attention that manufacturers give to safety in their plants. Today, there are critical legal issues involved. New federal laws extend the liability of cri |
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Application on safty of PLC
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Date:2008-03-01 01:38:46Click:104Comment:0
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| By Adam Mullis The changing environment of safety compliance and enforcement has increased the attention that manufacturers give to safety in their plants. Today, there are critical legal issues involved. New federal laws extend the liability of cri |
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