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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:

      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

      uCR Micro C/C++ Runtime Software

      The ISE board comes with a copy of the uCR/Embedded Operating System, for the software engineer writing and debugging software to run on the ISE board. uCR also supports other i960 and Motorola 68EC000 targets, and has preliminary support for Intel 386 and SPARC CPUs. uCR can be run using Linux/SPARC and Linux/Intel as a virtual board for those programmers wishing to experiment with or port software to uCR.
      http://www.picturel.com/ucrhome.html

      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

      Windows Embedded (Free) Download Center

      New to Windows Embedded? Visit the product ''Getting Started'' pages for an outline of software you need to begin developing: Windows Embedded CE Windows Embedded Standard Windows XP Embedded Windows Embedded NavReady Windows Embedded POSReady (next generation of Windows Embedded for Point of Service): Get the CD-ROM. Latest Updates Already developing with a Windows Embedded OS? Then get the lastest update packet and release...
      http://www.microsoft.com/windowsembedded/en-us/downloads/default.mspx

      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

      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/

      PORTOS - Real Time Operating System

      Portos is a new kind of RTOS without tasks, semaphores and mailboxes. Priority levels are directly assigned to functions. Some of the many features of Portos: - Save stack space, context switches, inter-task messages - Quick and easy scheduling by adding one argument to function - Preprocessor and compiler optimize function scheduling and handle arguments - Independent functions preserve software modularity, upgradeability - If...
      http://www.portos.org/

      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:

In the space of one hundred and seventy-six years the Lower Mississippi has shortened itself two hundred and forty-two miles. That is an average of a trifle over one mile and a third per year. Therefore, any calm person, who is not blind or idiotic, can see that in the Old Oolitic Silurian Period,' just a million years ago next November, the Lower Mississippi River was upwards of one million three hundred thousand miles long, and stuck out over the Gulf of Mexico like a fishing-rod. And by the same token any person can see that seven hundred and forty-two years from now the Lower Mississippi will be only a mile and three-quarters long, and Cairo and New Orleans will have joined their streets together, and be plodding comfortably along under a single mayor and a mutual board of aldermen. There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact.
- Life on the Mississippi