2 Device Initialization and Process 0 Activation
From now on, the main function begins!
Before the operating system (OS) enters the idle state, the core purpose of all the preparatory work is to allow user applications to run normally in the “process” way. There are three aspects involved: the user application can run computing on the host, interaction with peripherals, and human–computer interaction. This chapter explains the content to achieve this goal, including device initialization and activation of the first process—process 0.
Linux 0.11 is a modern OS supporting multi-processes, which means to ensure normal host operation, user processes cannot interfere with each other while processing. However, the process does not have a natural “boundary” ...
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