How Computers Boot Up
The previous post described [motherboards and the memory map] memory-map in Intel computers to set the scene for the initial phases of boot. Booting is an involved, hacky, multi-stage affair - fun stuff. Here’s an outline of the process: Things start rolling when you press the power button on the computer (no! do tell!). Once the motherboard is powered up it initializes its own firmware - the chip
Anatomy of a Program in Memory
Memory management is the heart of operating systems; it is crucial for both programming and system administration. In the next few posts I'll cover memory with an eye towards practical aspects, but without shying away from internals. While the concepts are generic, examples are mostly from Linux and Windows on 32-bit x86. This first post describes how programs are laid out in memory. Each process
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Memory Translation and Segmentation
