ChemLab for windows is an interactive simulation of a chemistry lab. Common Lab equipment and procedures are used to simulate the steps involved in performing a chemistry lab experiment. Each lab simulation is contained in a separate simulation module, thus many different labs are possible using a common lab interface.

DCIPLC is a ladder logic editor and PLC (Programmable Logic Controller) simulator that incorporates basic functions used in PLC Programming.With inputs, outputs, timers, counters, clocks and flags you can develop ladder programs. Each function is simply 'clicked' onto the ladder rung with tags assigned via a pop-up window. DCIPLC also has the added benefit of being capable of controlling external applications via a serial port (RS232).Also included a schematic for building the hardware.

This program is intended to be a tool for learning about digital circuits.  It can be used in conjunction with a course text book in order to allow a student to actually test and modify a circuit instead of just looking at a picture -- hopefully enhancing his or her understanding of the concepts.  The student will have the
ability to create both combinational logic and sequential logic circuits.  The list of elements that can be added to a circuit is quite comprehensive, including many types of basic logic gates, flip-flops, counters, registers, and storage chips.  Infact, there should be enough elements to provide the capability to design a basic 4-bit computer.

Digital Works is a graphical design tool that enables you to construct digital logic circuits and to analyse their behaviour.  Circuits can be composed of simple gates (AND, OR, NAND, NOR, XOR, XNOR, NOT) and simple flip-flops (D, RS and JK).  You can also use tri-state logic to construct systems with buses.  Digital Works also provides mechanisms for detecting race conditions and bus contention. Full version.

This program is an analog simulator designed to aid in the analysis of complex dynamic systems (mechanical, electrical, etc.). It allows a designer to easily model real world components and interactions, studying the resulting responses with a computer rather than having to physically model the system. Many complex dynamic systems can be simulated mathematically, but the downfall usually becomes one of complexity and/or nonlinearity.  With the "brute force" approach taken in Dynamo, these do not present a problem. Instead, Dynamo allows rapid system modeling with easy display of the results.  The ability to do "what if" scenarios is also taken beyond common mathematical simulation limitations. Shareware version.

Electronics Workbench is a powerful software tool that enables you to easily build and test simulated analog and digital circuits. The traces on the on-screen instruments are the same as you'd get on real equipment. It's easy to use and ideal for experimenting, prototyping circuits and learning about electronics.

Demo Version , run for 30 min and library is not complete.

Easy to use Programming Environment, detailed documentation, PLC simulation, large libraries with more than 650 function blocks, run-time kernels with pre-emptive multitasking, compiles to fast executing native machine code, function block programming in C/C++ optional, non-commercial, PC-based version for universities and private usage. OATs is both an IEC 61131 Programming Support Environment (PSE) to create automation projects and an associated run-time kernel which is the required controller or PLC to execute a project.   

PLC simulator is designed to overcome this limitation by using the PC processor to process PLC's ladder code. The PLC simulator mimic the 'OMRON Industrial PLC' with the following supported ladder code: LD, OR, AND, CNT, TIM, BLK, DIFU, SFT. It has 16 inputs, 16 outputs, 20000 internal relays, 8 counters and 8 timers.

PW+ Pro 2002, which stands for 'Power WinPLC Professional 2002', is windows based software to control the Velleman interface card K8000. If you don't know this card, visit the velleman site to read about it. Although the software was originally written for the velleman card, it might be adapted to use with other interface cards as well.

RFSim99 is a linear S-parameter based circuit simulator offering the following features:

Schematic capture front end · one touch simulation….draw your circuit then just hit the simulate button · analysis and display of full two-port S-parameters in Smith, polar, square grid  or tabular formats · 1 port and 2 port S-parameter file support · tolerance analysis · stability circles · auto-match , for automatic complex match network generation · match network, filter and attenuator design assistants· circuit tune mode · calculator for resonance/reactance, power, VSWR, wavelength etc.

SIMetrix is a SPICE based analog simulator, schematic editor and waveform analyser all integrated in one executable. It is completely free and has no registration requirements. You can use it for as long as you like. It is not crippled - i.e there are no circuit size limits, time outs or important features disabled
but lacks some of the facilities available with the full versions of the program.

It will run under Windows 3.1 and higher, Windows 95 and Windows NT 3.5, 3.51 and 4.0

SIMIC is a full-featured logic verification simulator.  It has been demonstrated that SIMIC can uncover a number of critical design errors that other simulators miss.  SIMIC has shown superior accuracy and
throughput when compared to competitive products. 

Dos Student Version 500 parts Max.

This is a Demonstration version of WinBreadboard ( only one chip for time ) , the Digital Electronics Trainer/Simulator.  It has a very unique interface you're gonna love. We also have a Macintosh version wich received a "Software Excellence Award" from Technology & Learning for the '93-'94 School year and a "Four Star" review by MacWorld Dec '92.

WIN-Electronik - Helps planning an electronic network.

Shareware version. Very Nice. 

The WSpice5 evaluation version of Schematics contains the same capabilities as the production version with the following exceptions:

  - only one page schematics are allowed
  - only A size pages
  - symbol libraries can contain a maximum of 30 symbols
  - schematic pages can contain a maximum of 20 parts
  - a maximum of 7 symbol libraries can be configured
    for use by the Schematic Editor
  - the Print, Export Part, and Import Part functions in
    the Symbol Editor are not available
  - a subset of the symbol libraries is provided