Computer architecture
CPU: Controller + computing device;
Memory (cache level, level two, memory)----> program local principle;
input device;
Output device;
Chipset
North Bridge (both system bus), responsible for main memory, display adapter and other components. Fast speed and high speed bus controller;
South Bridge (I/O) is responsible for connecting the slow Peripheral Interface ( hard disk,USB, network card, etc. );
(At present, main memory directly connected to the CPU, higher speed; SSD directly to North Bridge, South Bridges--->cpu)
API (Application Programming Interface)----------------> Middleware (High and low level environments) LIBRARY:API---->kernel
Hardware architecture:
x86 (INTEL/AMD)
x64 (AMD)
HP (Itanium <INTEL> +alpha)
ARM: Mobile Device usage
POWER (IBM)
PowerPC---->apple
Operating system
GUI/CLI:------>shell----->API----->kernel-----> Hardware
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