The computer's "POST" (Power-On Self-Test) silently ensures your system is fit for booting. Before an OS splash screen, it checks CPU, memory, and peripherals, signified by a single beep or LED flash. POST is like a vigilant gatekeeper, unnoticed yet crucial for system integrity. Ever wonder what your computer's initial beep means or have experienced different POST codes? Share your stories or insights on these cryptic signals. Let's uncover the hidden language of our machines!