[Reading Notes] principles of computer composition-Chapter I system introduction

1.1 Computers have hardware and software components, the program and the like, hardware can see the like, hard disk and so on.

The computer system is multi-layered. Probably is.

M4 (Advanced language translation machine)

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M3 (assembly translation machine)

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M2 (operating system)

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M1 (machine language machine, which is 2 binary things running on this)

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M0 (microcomputer, put a command in the M1, explain the implementation, OK, then the next one. So repeated. As a decomposition of M1)

M4 translates high-level languages, such as C,js these for assembly again to machine language, or directly to machine language. M4 translation into machine language program has 2 kinds, compiler and interpreter, compile it once, and then execute machine language, explain how to explain a piece of execution, until finished.

M3 translation of assembly language machine, translated into machine language, run on the M1.

M2 is the operating system level, the book did not say much.

M2,M3,M4 are virtual machines, M0,m1 actual machine. M1 traditional machine, M0 micro-programming machine.

Whether the specific instructions are executed on M1 or M0 or not very clear ...

[Reading Notes] principles of computer composition-Chapter I system introduction