1. Instruction Set Architecture : OS系統與硬體之間的溝通介面
   1. defines how the CPU is controlled by the software
   2. Abstract model of computer
   3. The ISA acts as an interface between the hardware and the software, specifying both what the processor is capable of doing as well as how it gets done.
   4. A device that executes instructions described by that ISA, such as a central processing unit(CPU), is called an implementation

作業系統與其介面

Command Interpreter & System Call & Kernal ⭐

作業系統：Unix ; Linux ; Windows 🌟待整P195

Device Driver 背 ⭐ 驅動程式 ( driver )

Spooling vs Buffer vs Cache 🌟

System types ⭐ ⭐

Dual Modes : Resource Protection and Priviledged instruction ⭐

Priviledged instruction

Interrupt and Trap ⭐

CPU & I/O Device 溝通方式🌟

Microkernel vs Monolithic kernel #講義 #央解釋名詞 ⭐背

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