| Operate a vintage mechanical calculator from before the micro-electronics revolution. This type of calculator was designed about 1850 and was in use until 1970. Electronic calculators already existed at this time, but they were very expensive. The program has in-line documentation with examples of various calculations and calculations can be performed in STEP mode, showing elementary steps such as carry propagation. Download Pinwheel and operate, with mouse or keyboard, the handles and crank of this calculator.
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| author: | David E. Dirkse |
| required: | Win9x, Win2K, WinXP, Vista, Win7 |
| size: | 313 k |
| added: | 17-May-2010 |
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