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demo: Definition and Recommended Links

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A demo is a non-interactive multimedia presentation made within the computer subculture known as the demoscene. Demogroups create demos to demonstrate their abilities in programming, music, drawing, and 3D modeling. The key difference between a classical animation and a demo is that the display of a demo is computed in real time, making computing power considerations the biggest challenge. Demos are mostly composed of 3D animations mixed with 2D effects and full screen effects.

The boot block demos of the 1980s, demos that were created to fit within the small (generally 512 to 4096 bytes) first block of the floppy disk that was to be loaded into RAM, were typically created so that software crackers could boast of their accomplishment prior to the loading of the game. What began as a type of electronic graffiti on cracked software became an art form unto itself.

Source: Wikipedia (http://en.wikipedia.org/wiki/Demo_(computer_programming))

other great electronics sites:ee toolbox site

• • demo
    • A demo is a non-interactive multimedia presentation made within the computer subculture known as the demoscene. Demogroups create demos to demonstrate their abilities in programming, music, drawing, and 3D modeling. The key difference between a classical animation and a demo is that the display of a demo is computed in real time, making computing power considerations the biggest challenge. Demos are mostly composed of 3D animations mixed with 2D effects and full screen effects.

      The boot block demos of the 1980s, demos that were created to fit within the small (generally 512 to 4096 bytes) first block of the floppy disk that was to be loaded into RAM, were typically created so that software crackers could boast of their accomplishment prior to the loading of the game. What began as a type of electronic graffiti on cracked software became an art form unto itself.

      Source: Wikipedia (http://en.wikipedia.org/wiki/Demo_(computer_programming))

      (Note: The Electronic Engineers Toolbox provides an alternative set of featured links for this word at http://www.cera2.com/demo.htm)

      Featured Links:

      ThreadX 4.0 For Blackfin Processors, MicroBlaze, and PowerPC Embedded Processors

      * ThreadX library, ready to link with your application code * ThreadX demo application, pre-built for Blackfin ADSP-BF561, MicroBlaze or PowerPC use * Easily adapted to other Blackfin Processors (BF53x) * Fully compatible with Analog Devices’ VisualDSP++ * Fully EDK 6.3i compatible * Full User Guide documentation in pdf form
      http://www.rtos.com/downloadsfree.asp

      Embedded Systems Evaluation Software

      Evaluation downloads include: Nucleus RTOS - Nucleus PLUS RTOS provides an extensive set of real-time services including task control, task communication, task synchronization, memory management and programmable timers; EDGE SimTest - a prototyping environment that enables you to build embedded applications on a development host such as Microsoft Windows, prior to embedding on target hardware; EDGE DevTools - an integrated development...
      http://www.mentor.com/products/embedded_software/evaluate.cfm

      TSX-Lite O.S. & TSX-Online

      TSX-32 is a general purpose multi-user multi-tasking OS with real-time facilities for the X86 platform. Use it as an Internet server or as a development platform for your own custom applications. This is a demo version.
      http://www.sandh.com/__bbs__/tsxlite.htm

      Mapusoft Demo - OSChanger

      OSChanger automatically converts software from one RTOS to another while allowing users to implement multiple programming interfaces (API). In fact, OSChanger allows customers to use all three APIs (VxWorks, pSOS, and Nucleus Plus) simultaneously in a single application module to provide the best integration along with the lowest memory footprint.
      http://www.mapusoft.com/evals.htm

      Free RTOS Buyers Guides and Reports

      The RTOS Buyer's Guide A comprehensive list of commercial RTOS. The information is provided and maintained by the RTOS vendors themselves. Vendors who's RTOS is not yet listed, can add it at their convenience. Free download RTOS evaluation reports In this section you can download several RTOS evaluation reports, as well as some accompanying documents and white papers.
      http://www.dedicated-systems.com/encyc/buyersguide/rtos/rtosmenu.htm

      Quantum Platform Downloads (GPL License)

      Quantum Event Processor (QEP) is a generic, portable, and reusable state machine engine that processes events according to the general semantics of UML™ state machines. Quantum Kernel (QK) is a tiny preemptive real-time kernel specifically designed for executing independent tasks in a run-to-completion (RTC) fashion.
      http://www.quantum-leaps.com/downloads/index.htm

      Free SMX Evaluation Kits

      SMX target evaluation kits are offered to developers who are in the process of selecting an RTOS for a project which has been approved or is expected to be approved soon. If you are eager for an immediate download, or if your interest is of a more casual nature or for research, please try SPEK. We are sure you will find it interesting to work with and satisfactory for learning smx, smx++, and PEG.
      http://www.smxinfo.com/eval/index.html

      Symobi - RTOS

      A new kind of operating system This is the website of Symobi, an entirely different operating system. It is not related to other existing operating systems in any way. It is based on the Sphere Microkernel and the core system µnOS, both also by Miray Software. The main intention behind Symobi is to combine a modern operating system architecture with a wide spectrum of valuable abilities. The result is modular and flexible. This makes Symobi...
      http://www.symobi.com/

      EFOS RTOS Demo

      EFOS is a Real-time Operating System designed with performance, ease of use and flexibility in mind. Typically many Real-time systems have stringent memory requirements and very high demand for efficiency. EFOS provides flexibility and ease of use for developer with features like multi-tasking, Inter-task communication at the same time meeting the memory and efficiency constraints.
      http://www.vinjey.com/efos_trial.html

      embOS demo

      embOS is a real-time operating system for embedded applications designed to offer the benefits of a fully fledged multitasking system at minimum cost. The kernel is fully interruptible and so efficient that it can be used in very time critical situations.
      http://www.segger.com/downloads.html

      Explanation: these links are provided as part of our EE glossary project, which seeks to identify the most prominent keywords in embedded systems, embedded software, realtime and rtos, dsp (digital signal processing), system-on-a-chip, microprocessors and microcontrollers, and other constituent elements for embedded systems. While we seek to keep most of the links up-to-date, the user is refered to other primary electronic-based search sites such as: cera2.com, embedded.com, or EDN Magazine. If you have any suggestions of links or definitions, please email!

Mark Twain quote for the day:

The symbol of the race ought to be a human being carrying an ax, for every human being has one concealed about him somewhere, and is always seeking the opportunity to grind it.
- Mark Twain, a Biography