Bird Brother Linux Private cuisine Knowledge points summary 0 to 2 chapters

I feel that my understanding of Linux has not been enough, so I recently turned to a "bird brother's Linux private dishes." This is a basic book, lofty high-rise floor, will not much but can learn. This is a few of my knowledge points, although very basic. Hope to share with you.

Chapter 0 Computer Overview

1, the computer has three major parts:A. input section, including keyboard, mouse ...

B. Central processing Unit (CPU): Logic, control, memory and other units

c. Output Unit: screen, printer, etc.

2, basically the data are flow through the memory and then go out.

3, the smallest component of the hard disk is a sector.

4, personal computer memory main main parts for dynamic random access memory , only when the power to record and use, power loss after the data disappeared.

5,theBIOS is a set of procedures, this program is written to die on the motherboard on a memory chip, the memory chip in the absence of power can also record the data, this is read-only memory .

6. Because each image displays a color that consumes memory, the memory capacity of the graphics card will be based on the thought of the final resolution and color depth of your screen.

7, the size of each sector is 512bytes, a sector composed of a circle becomes a track, the same track can be composed of a cylinder, cylinder is generally the smallest unit when we separate the hard disk.

8, the chipset is generally divided into the North Bridge and South Bridges, North Bridges are responsible for CPU/RAM/VGA , such as the connection, Nan Qiao is responsible for the PCI interface and slower speed I/O devices.

9. The main function ofCMOS is to record the important parameters on the motherboard, including system time,CPU voltage and frequency, and I/O of various equipments. address and IRQ , and so on.

Theoperating system is also a set of programs that govern all the activities of the computer and all the hardware in the drive system.

Chapter 1 What is Linux

^ (*￣(oo)￣) ^ C language development is because the great god Dennis rithie think B Language compiled kernel performance is not good, the results have been used so far, do not underestimate their potential! You want to do, but in real life, do not have to do one of their own to play it .

This is mainly about the evolution of Linux .

In fact, to understand it:

Advantages :

Stable system, free or little cost, security, bug fixes, multi-tasking, multiuser, user and user group rules, relatively non-resource-intensive systems, suitable for embedded systems requiring small kernel programs, integrated and diverse graphical user interface (GUI)

Disadvantages :

There are no specific support vendors. Lack of support for the game. The support of main business software is insufficient.

^ (*￣(oo)￣) ^ in short, the rise ofLinux , my personal feeling is that the Great God Guide, all the way forward, people more powerful ( Although these people are not like Micsoft from a door faction, but from the world different Xuan Zong people, martial arts different, more worthy of expectation. Haha, recently read fantasy novel some more, we forgive Ah )

2nd Chapter how Linux learns

This chapter mainly introduced the bird uncle, ah is not brother Bird learning the process of Linux , dao his bitter.

What is Linux capable of?

A. Web server ( This is still quite appealing to me )

B. mission-critical applications ( Financial database, large Enterprise network management environment )

C. academic institutions high-performance computing tasks

Brother Bird gave some advice on learning:

Develop a record-making habit of documenting error messages and triggering situations and solutions, while finally classifying and collating them regularly.

See any good articles on the internet, leave a copyfor yourself, set the title, classify the archive

as a user, people want to accommodate the machine, as a developer, to the machine to accommodate people.

Finally, I like the word, with you to share:

If you want to do it 1000 times, do it once. A gorgeous fall, more than a meaningless wandering!

Bird Brother Linux Private cuisine Knowledge points summary 0 to 2 chapters