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

This exercise uses 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.


There is also an experimental program, along with the 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 However, it has not been very carefully tested, so use at your own caution.

Get hands-on with 1200+ tech skills courses.