The first day of Linux learning

Source: Internet
Author: User

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

The first day of Linux learning

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