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December 2019

seconds .saver

a screensaver by Laura Brown, December 2019


the total is 15.55 USD (13.07 + 19% tax)

screensaver for macos


A command that draws a single point on the screen is repeatedly enqueued to be executed at a regular interval of 1/10th of a second. When this command is executed, the current time is used to determine the point’s location on the screen.

Theoretically, the points should form a perfectly aligned grid pattern, since they should be drawn at regular intervals which determine their location, but in reality the draw command is often delayed because of other activity taking place when the command is enqueued for execution.

The slight irregularity of the resulting points highlights a flaw in the common assumption that timekeeping in computer programs is infallible and that the execution of code is instantaneous.

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