Blocks is an early and tiny (3KB!!) blocks stacking simulation, in which you click the mouse to add/remove rectangular bricks in a demi-brick unit fashion, so you're kind of limited to a grid to place them.  There's also an option that...

Life is a crude and early Game of Life simulator for the very early Macintosh models.  

Easy to use digital circuit simulator For the budding digital designer, LogicSim is a bag chock full of virtual Legos. LogicSim gives you all the basic components to build anything from a simple adding machine to a full-fledged (if somewhat...

Real Domino Effect is a falling domino simulator, containing all sorts of pre-built patterns. This application allows the user to design their own domino run, both in terms of where it goes, as well as what the dominos look like. Additional...

The EDSAC was the world’s first practical stored-program computer; it was designed and built at Cambridge University, and performed its first fully automatic calculation on 6 May 1949. The Warwick University simulator is a faithful...

Critters is an artificial life program for the Macintosh.  Within the universe of Critters, many Critters and Hippocritters will be born, live happy and (occasionally) meaningful lives, have children, move around, eat, and eventually die. ...

Welcome to Starry Night! Starry Night is your ticket to solar system tourism. Travel in both time and space; get a first hand experience of the intricate and beautiful clockwork of the heavens. You can see the stars and planets as they appear from...

Poly is a program for investigating polyhedral shapes. Poly can display polyhedral shapes in three main ways:  · as a three-dimensional image,  · as a flattened, two-dimensional net, and  · as a topological...

PSpice is an analog circuit simulator.  It calculates the voltages and currents of a circuit under a variety of different circumstances, such as DC, AC, and in time.  The program SPICE was developed at the University of California at...

MacDoppler PRO gives you a seat right in the heart of the Operations & Command Centre for every satellite in orbit. In fact up to sixteen front row seats at the same time. With MacDopplerPRO, you get the most out of satellite...

The program Edge™ Dive Computer Simulator is a simulator for the Edge Dive Computer. The program simulates diving with the Edge for both no-decompression and decompression situations. The program uses the same decompression algorithms and...

MacAC is a fully integrated linear circuit entry and simulation package that allows a user to graphically enter and edit analog circuits, perform analyses to investigate circuit properties and display or print the results in graphs or tables. It is...

Mactivation™ is an interactive simulator for investigating the low level concepts of associative memory in a parallel distributed processing (PDP) architecture. A direct interface to units, connections, and network parameters introduces the...

Lost, perhaps, in the furious pace of computer development is the fact that computers in most offices aren’t used very much in activities dependent on the results of theoretical computer science. From word processing to image manipulation,...

MacRadarScope is the only known available Air Traffic Control Client for the Macintosh platform. The original author, Ben Supnik has ceased development on the software, but has given permission for it to be publicy hosted and made available to...

Zippy is an automata sandbox where a worm moves by itself and bumps into "pucks" (squares) along its way.  When the automated worm bumps into one, that puck pushes back 1 unit and the worm turns 90 degrees and continues forward. ...

Life Hack is a nice Game of Life simulation implementation.  It allows to draw directly on the grid using the mouse, has very fine cell resolution, can save/open, display stats, have multiple windows redrawing in parallel.  Also, it's...