Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

double buffering

Using two buffers: one fills while the other is processed, then they swap.

Double buffering uses two buffers: DMA fills one while the CPU processes the other, then they swap. Processing each buffer must finish before the next one fills.

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