open source operating system for pc

1 Open sudo terminal Runtime.exec ("Echo Your root password | Sudo-s your order "); 2 creating different operating system directories File fp = new file (Lastsfolderpath);Create a table of contentsif (!fp.exists ()) {Create a directory if the Fp.mkdirs ()//directory does not exist.if ( -1!= system.getproperties (). GetProperty ("Os.name"). toLowerCase (). IndexO

X86 series CPUs can run in 16-bit real-time mode and 32-bit protection mode. The real-time mode features that the address bus only has 20 bits, that is, only 1 MB of addressing space, to be compatible with old CPUs, Intel x86 series CPUs, including the latest CPUs, run in 16-bit real-time mode during power-on. At the same time, on the hardware, the strong lines set CS to 0xF000 and IP to 0xFFF0, CS: the IP address points to the address 0xFFFF0, that is, the code is executed from the address when

In suse Linux, the iso file of the operating system installation disk is used to install the mysql service from the installation source. Every time the installation program is installed, the system prompts you to insert the suse installation disc. this is inconvenient. Today, we finally find a solution: # create a dire

1.Code: Org 07c00h; tells the CompilerProgramLoad mov ax, CS mov ds, ax mov es, ax call dispstr at 7c00; call the display string routine JMP $; infinite loop dispstr: mov ax, bootmessage mov bp, ax; ES: BP = string address mov CX, 16; Cx = string lengths mov ax, 01301 h; Ah = 13, Al = 01 H mov BX, 000ch; page number is 0 (bH = 0) black background red letter (BL = 0ch, highlighted) mov DL, 0 int 10 h; 10 h interrupt retbootmessage: DB "Hello, OS world! "Times 510-($-$) db 0; fill in the remaini

(Reprinted please indicate the source: http://blog.csdn.net/buptgshengod) 1. Background The screenshot function of the android system is encapsulated by google and is also desired by everyone. After more than a month of research, the blogger finally succeeded in implementing system screenshots in the new android version, that is, version 4.3 and later. If you wan

follows: Steps: 1. List all available Lana numbers on the System II. Each Lana number used in the reset Plan III. Obtain the NIC address \ Users} function tmacadressinfo by using the adapter command. getmacphysicaladdress (Alana: integer = 0): string; var NCB: tncb; // NetBIOS control block adapterstatus: tadapterstatus; // obtain the NIC status lanaenum: tlanaenum; // Lana enumerated value I: integer; begin result: = ''; try {http://blog.csdn.net/su

Recently read the source code of Linux, want to see things written out, think the memory of this part of the simplest, first written out. Please correct me! The minimum memory 4K address is a page directory (Page_dir) with a total of 1024 entries, each 4 bytes. The directory entries are structured as follows: ____________________________________ |32-12 bit for page box address | |u|r|p| | | |s|w| | |_______ __________|______ |_|_ |_| The 16K is th

Java Open source Fresh e-commerce platform-system architecture and technology selection (source code can be downloaded)1. Hardware environmentCompany servers2. Software Environment 2.1 operating systemLinux CentOS 6.8 Series2.2 Reverse Proxy/web ServerNginx2.3 Application Se

Open-source: the enterprise management information system is completely DIY, short and fast, and the. NET source code is widely released. Author: Yangtze River Tributary Key words: MIS, enterprise management information system, management

This article is "Daily build [4]: related tools.Because the source code version control system (RvS) is a "Daily build process ",This is the first step, so when I am introducing the related tools built on a daily basis, I will first talk about the software of the RCS class. ★Old school's RCSThroughout the entire software development lifecycle, the RCS is at a very basic position. Many software engineering

Function classroom reservation system open-source download (c # source code ), This function classroom reservation system is designed for your friends. It has not been sorted out recently for your reference. This system is a CS s

Today, when the server does publish + subscribe, there is a problem, as follows:The process could not read the file "D:\Program Files\Microsoft SQL Server\mssql10_50.mssqlserver\mssql\repldata\unc\ because of operating system error 3 User-n18o5dgqu6_cloudtradb_gypt_gypt_f\20151127091512\fn_diagramobjects_129.pre ". (Source: MSSQL_REPL, Error number: mssql_repl200

executing scripts, restoring the database, and attaching the database. For details about how to restore the database by using the backup restoration technology, see "agileeas database restoration and related design instructions. To compile the project, you can choose to use vs2010 open the pharmacy system-source code-vs2010 in the drugshop solution for compila

Tell me what I'm trying to do before I finish this example. First, modify the "Actionbarsherlock" navigation example. Before I implemented this example, I tried "actionbarsherlock" to modify one of its tab navigation examples, and the modification was successful. But finally found that it is not a actionbar implementation of the tab, can not hide Actionbar, when the Actionbar hide method is invoked, Actionbar is hidden, but the title of the tab page still exists, And in the lower version of Andr

Entlib.comOpen-source e-commerce system V3.0 ◆ 100% open sourceSource code);◆ Based on. NET Framework 4.0;◆ Use ASP. NET, C # To develop and SQL Server databases;◆ Development by senior business personnel and technical experts in the e-commerce field;◆ Senior System Architect Design to ensure

X86 series CPUs can operate in 16-bit real mode and 32-bit protected mode, the real mode is characterized by address bus only 20 bits, that is, only 1MB of addressing space, in order to be compatible with the old Cpu,intel x86 series CPU including the latest CPU in the power-up run in 16-bit real mode, At the same time on the hardware to force CS into 0xf000,ip 0xfff0, then Cs:ip point to 0xffff0 this address, that is, the power of the instantaneous code from the place to execute, and the BIOS i

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