Getting Started with the Trolltech Greenphone SDK
It would be great to explore many other Qtopia-specific features in more detail, such as the QCop IPC mechanism for communication across processes, the XML-based theming engine, the secure execution environment (SXE), plus all the phone-specific features, for starters.
Qtopia provides a lot of advantages for the embedded developer designing applications for mobile phones.
Besides the emulation environment, the code compatibility with desktop applications and the natural intuitive application framework, I find that Qtopia does something better than other embedded environments do—it helps put the fun back into programming.
An introductory comparison between CDMA and GSM for the North American market: www.wisegeek.com/what-is-the-difference-between-gsm-and-cdma.htm
European Telecommunications Standards Institute (ETSI): www.etsi.org
“Using Qt to Develop for Embedded Linux” by Natalie Watson (LJ, May 2001): www.linuxjournal.com/article/4660
“Choosing a GUI Library for Your Embedded Device” by Martin Hansen (LJ, January 2007): www.linuxjournal.com/article/9403
Short Message Service: en.wikipedia.org/wiki/Short_message_service
Multimedia Messaging Service: en.wikipedia.org/wiki/Multimedia_Messaging_Service
General Packet Radio Service: en.wikipedia.org/wiki/General_Packet_Radio_Service
Robert E. Hartley is happily married and the father of four wonderful children. He is a dual-national Australian/Canadian living in Ottawa, Canada. Robert started his working life as a programmer writing assembly language on IBM mainframes before getting hooked on UNIX and C in the mid-1980s. He started using Linux as his principal desktop environment ten years ago, and has until recently been busy consulting and training customers around North America and Europe as a Trolltech certified Qt Trainer for its North American training partner, ICS (www.ics.com).
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
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- Managing Linux Using Puppet
- Non-Linux FOSS: Caffeine!
- Interview with Patrick Volkerding
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- Parsing an RSS News Feed with a Bash Script
- Doing for User Space What We Did for Kernel Space
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide