Operating system learning-CPU scheduling (2)

CPU scheduling, multi-channelProgramThe basis of the operating system. The computer's throughput refers to the number of processes processed by the computer per unit of time. CPU scheduling improves the computer throughput by switching the CPU

Summary of PCB multi-board design-layer distribution settings

Summary of PCB multilayer Design Reprinted: PCB multi-board design suggestions and examples (, 12) Design requirements: A. The component plane and welding plane are complete ground planes (shielded ); B. There is no adjacent parallel wiring

Use China Merchants Bank online banking Professional Edition in virtualbox

This articleArticleIt describes how to use China Merchants Bank online banking Professional Edition in Ubuntu and virtualbox environments. Note: http://csfreebird.blogspot.com is my practice to write english blog site. Environment: 1. Ubuntu 12.

Difference between Gaussian-kruger projection and UTM projection in ArcGIS

  Higis.cn Original article, reprinted please indicate the source Both BEIJING 54 and Xi'an 80 in our country use Gaussian kruger projection, but ArcGIS users may find that when using raster data, every time the grid is defined as the

Use the host file on the local machine to solve the problem of slow opendns

Use the hosts file on the local machine to solve the problem of slow opendns Because the Gae part of GFW can be solved temporarily by using opendns, but sometimes it is intolerable to use opendns to resolve the slow speed of domestic websites.

Restore-spsite: cannot be restored to a server running the current version

Cannot be restored to a server running the current versionsometimes we encounter the follow question when use the powershell restore the sitecollection bakup. Restore-spsite: Your backup is from a different version of Microsoft SharePoint

Socket/tcp stick package, multi-package and less package, packet disconnection

Why does TCP stick packets? A few days ago, the TCP communication of Mina was debugged. The first Protocol packet was resolved normally, and the second packet was incomplete. Why is it like this? We still have this problem when we use a

Introduction to lint

Introduction to Software Quality Assurance tool lint Sender: sleepcat (☆when a Pig falls in love with a breeder ☆), email area: Embedded. This article is popular: 77 Subject: Introduction to lint Mailing site: Nanjing University Lily station (Thu

256-color non-compressed BMP file format

A 256-color BMP file consists of four parts: BMP file header, BMP Information header, color table, and bitmap information matrix. BMP file header structure; Struct bitmapfileheader _{Short Type; // --------- file type, which must be 'bm'Int bfsize; /

Use a mobile phone to get money from an ATM

  The following two features of mobile phone make it potentially a unified payment and credit platform: The mobile phone has a pre-paid balance, so it can become an "Account" SMS has "Basic real-time" and can be used for confirmation   1. Use a

Continuous integration across teams: Several Basic Contradictions

  Continuous integration within a single team is already a mature practice. Cross-team integration has encountered many problems, including the long test run time,There are some corresponding solutions to these problems, such as reasonable branch

Like sublime is a kind of feeling

When I first started working, the project team used ultraedit. I only use ultraedit (UE) for two months, I have always had a bad impression on ue, but I don't know much about its complete functions. Some functions and configurations have the same

Network editing required manual 1: HTML language Daquan

What is an HTML file? The full name of HTML is hypertext marked language ". Unlike common text, an HTML file not only contains text content, but also some tags ". The suffix of an HTML file is .htm.pdf and .html. You can use a text editor to compile

Conflicting domain broadcast domain

Network interconnection devices can divide networks into different conflicting and broadcast domains. However, different network interconnection devices may work at different layers of the OSI model. Therefore, the effect of dividing conflicting

Install Debian in colinux

The Linux Release versions provided by colinux itself are ultra-concentrated, with few software installed in them. I need to install a complete release version on my own. Install Debian in colinux > Software Version:Colinux0.7.9 +

Features of the real-time multi-task operating system uCOS-III

Features of the real-time multi-task operating system uCOS-III UCOS-III is a brand new real-time kernel derived from the world's most popular real-time kernel uC/OS-II, in addition to providing a series of familiar system services, fully revised the

Introduction to raid technology categories

Overview raid is the abbreviation of "Redundant Array of independent disk ".Independent redundant disk array. The redundant disk array technology was born in 1987 and was proposed by the University of California at Berkeley.  Raid disk array

"Yin and yang puzzles" in Scheme"

Document directory "Yin and yang puzzles" in Scheme" "Yin and yang puzzles" in Scheme" In scheme, there is a famous "yin-yang Puzzle", which is probably a few lines of code: (let* ((yin ((lambda (foo) (newline) foo) (call/cc (lambda

Design of QT-based SMS analog receiving and receiving platform

In this article, we will briefly describe how to design a platform to simulate the SMS sending and receiving effect in QT. The following shows the session module as follows: The title of the interface is displayed in "session" first, and the

Nic parameter setting suggestions and explanation of the meaning of each Nic Parameter

Since dealing with diskless systems, I have learned more than N pieces of knowledge, both in the software and hardware, both in the theoretical and practical aspects. Many people think that diskless systems are very complicated, I am also misled by

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