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Hey there, tech enthusiasts! Ever find yourself wondering how your computer runs through its checks before it boots up? Wonder no more! I'm your host, Professor JRod, ready to decode the power on self test (post) process for you. We'll examine how the BIOS validates your hardware's integrity and prepares your system for the operating system's loading. From the initialization of your CPU, including fetching the reset vector and setting the program counter, to in-depth discussions on memory testing, we're here to quench your technological thirst. Just consider the importance of a stable power supply and how post checks ensure that your computer operates optimally.

But that's not all! We're also delving into the technicalities of your computer's boot up sequence. Join us as we unravel the mysteries of the checksum verification and digital signatures that maintain the integrity of your BIOS code. We'll also explore how your system ensures it can provide video output to the display and the tests conducted to identify any potential graphic card or video memory issues. Rest assured, we are not skipping the critical expansion card checks that verify the functionality of your graphic cards, network cards, and more. By the end of our tech journey, you'll have a newfound understanding and appreciation of the vital checks your computer performs every time it's powered up. Let's get this tech party started!

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Art By Sarah/Desmond
Music by Joakim Karud
Little chacha Productions

Juan Rodriguez can be reached at
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