Simulator

This lesson explains how to interact with the simulator for the exercise presented in the next lesson.

This exercise uses disk.py to familiarize you with how a modern hard drive works. It has a lot of different options, and unlike most of the other simulations, it has a graphical animator to show you exactly what happens when the disk is in action.

NOTE

There is also an experimental program, disk-precise.py along with the disk.py. This version of the simulator uses the python Decimal package for precise floating-point computation, thus giving slightly better answers in some corner cases than disk.py. However, it has not been very carefully tested, so use at your own caution.

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