Real-time processing means processing data as it is created or modified. This is in contrast to batch processing, wherein data is processed in large chunks at a specific interval (e.g. every night).

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Node.JS or Scala for mobile and web apps [closed]

I am coming from a php background with some python as well. I want to start working on a different language for both web and mobile development. I am also interested in real time apps dealing with ...
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Implementing chat in 2013 [closed]

I played a bit with WebSockets and started to implement a tiny chat. Last time I did something like this was when there was no such thing as threads and computers had single core. I started to think ...
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Multitasking in C#

I would like to use a timer in my C# program with millisecond accuracy to keep a camera in sync with some events and keep shooting a picture every 250ms (or 1/4 sec, or I might adjust it to even ...
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WCF service as a proxy for publishing real-time data to a WPF/MVVM clients

I've been tasked with creating a dashboard application to show real time updates for our servers. The raw data comes in from an XML file on our intranet which I need to parse and present to the user. ...
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How is time calculation performed by a computer?

I need to add a certain feature to a module in a given project regarding time calculation. For this specific case I'm using Java and reading through the documentation of the Date class I found out the ...
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Floating point undesirable in highly critical code?

Question 11 in the Software Quality section of "IEEE Computer Society Real-World Software Engineering Problems", Naveda, Seidman, lists fp computation as undesirable because "the accuracy of the ...
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easiest way for push notifications

I wanted to implement real time push notification to one of the apps written in RoR. I don't have any experience with nodejs, nowjs, express or socketio. What would be the easiest way to implement ...
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What operating systems are used in airplanes, and what programming languages are they developed in? [closed]

I was wondering if anyone knows what is the operating system used in commercial airplanes (say Boeing or Airbus). Also, what is the (preferred) real-time programing language? I heard that Ada is used ...
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Design pattern for an automated mechanical test bench

Background I have a test fixture with a number of communication/data acquisition devices on it that is used as an end of line test for a product. Because of all the various sensors used in the ...
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Almost Realtime Data and Web application

I have a computer that is recording 100 different data points into an OPC server. I've written a simple OPC client that can read all of this data. I have a front-end website on a different network ...
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How the Erlang get soft-realtime with GC?

Generally GC is not a good choice to get a soft real-time attribute. But Erlang is GC based language can be soft real-time. Does it mean Erlang have almost no GC latency? How does it work?
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Real-time Dataflow Programming

Background Recently, I have been fascinated about the possibilities of dataflow-based programming approaches - in particular, signal/event-based concepts as realized by functional reactive ...
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Is realtime validation of username good or bad?

I have a simple form for the user to sign up to my site; with email, username and password fields. We are now trying to implement an ajax validation so the user doesn't have to post the form to find ...
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Migrating from Python to Scala wise when a lot of work is already done in Python?

Me and my friend are developing a web-app in Python + Flask + PostgreSQL. We have been working on it for the past few months and have developed a lot of schema/use-cases specific to Python + Flask + ...
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Real-time chat in Ruby on Rails without owning a server [closed]

I'd want to implement a Real-time chat for my Rails app but I can't really host the server which handles the sockets. I've tried Faye but it needs a server. I've also heard of pusher but it's limited ...
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5answers
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How did they count the number of lines of code executed at runtime?

There was a PC game released in 2001 called Black & White by Lionhead studios in which there was a lengthy statistics page which updated in real-time. There were stats such as how many people ...
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benchmarks for quasi real-time software

I'm wondering if there is any benchmarks which can help to understand real-time characteristics (response time) of non-real-time software. For instance C# application on Windows or MSSQL Server. I ...
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What are the challenges in building a scalable real-time web app?

I'm looking into real-time web applications using websockets and node.js. I'm interested to see what are some technical challenges with scaling such a setup. One such problem I've heard is that each ...