TAILIEUCHUNG - Modern Operating Systems(3rd)

A modem computer consists of one or more processors, some main memory, disks, printers, a keyboard, a mouse, a display, network interfaces, and various other input/output devices. All in all, a complex system. If every application programmer had to understand how all these things work in detail, no code would ever get written. Furthermore, managing all these components and using them optimally is an exceedingly challenging job. For this reason, computers are equipped with a layer of software called the operating system, whose job is to provide user programs with a better, simpler, cleaner, model of the computer and to handle managing all the resources just mentioned. These. | Round robH MODERN3 OPERATING SYSTEMS I Thread Mctrti operate MJVVirwM eydtem Thin cient Cnticai re cn Spyware 4 PrửUctor 1 m har nUuier O clock LOAd balancing ue tcrejm zx of death jV k Output roỳw yừvữe Input fipcee p tcheduier Me wy SLbốyốUrr. Embedded k ợyatem C o tnch fl muallzaUxi MAImedU Rase Vo J tícotng computer v VMeo cotrpreeoi Imerrupt Pcxr maragement Ojai core ANDREWS. TANENBAUM Sysure cnt 1 INTRODUCTION A modem computer consists of one or more processors some main memory disks printers a keyboard a mouse a display network interfaces and various other input output devices. All in all a complex system. If every application programmer had to understand how all these things work in detail no code would ever get written. Furthermore managing all these components and using them optimally is an exceedingly challenging job. For this reason computers are equipped with a layer of software called the operating system whose job is to provide user programs with a better simpler cleaner model of the computer and to handle managing all the resources just mentioned. These systems are the subject of this book. Most readers will have had some experience with an operating system such as Windows Linux FreeBSD or Max OS X but appearances can be deceiving. The program that users interact with usually called the shell when it is text based and the GUI Graphical User Interface which is pronounced gooey when it uses icons is actually not part of the operating system although it uses the operating system to get its work done. A simple overview of the main components under discussion here is given in Fig. 1-1. Here we see the hardware at the bottom. The hardware consists of chips boards disks a keyboard a monitor and similar physical objects. On top of the hardware is the software. Most computers have two modes of operation kernel mode and user mode. The operating system is the most fundamental piece of software and runs in kernel mode also called supervisor mode . In this mode

• Hệ điều hành
• Linux security
• Readyboot
• Vista
• Protection command
• Priority inversion
• Power manager
• SELinux open source security enhanced linux
• Source security enhanced linux
• Introducing SELinux
• The SELinux security model
• Installing and initially configuring SELinux
• CompTIA® Security+
• Guide to Network Security Fundamentals
• CompTIA Security+ certification
• Linux file manipulation tools
• Internal physical security controls
• Network hardware security modules
• Beginning Linux
• system linux
• linux server
• operating system linux
• administrator linux
• security linux
• Hệ điều hành Linux
• Quản trị Linux
• Tìm hiểu về Linux
• Giới thiệu về Linux
• Bài giảng về Linux
• Hệ thống tập tin trong Unix
• Security enhanced linux
• Type enforcement
• Ancillary policy statements
• Customizing SELinux policies
• Linux essentials
• Module Linux essentials
• System security
• User security
• System users
• Identifying user types
• Linux kernel
• Enhanced Linux
• SELinux
• Network security
• attack techniques
• defensive techniques
• operating system security
• application security
• security policy
• Thủ thuật máy tính
• Kỹ năng máy tính
• Bảo mật dữ liệu
• Bảo mật linux
• Lập trình linux
• Security on Linux System
• Linux Toys II
• installing linux
• networking hardware
• systems linux
• Linux Boot Process
• Configuring Hardware
• Network Boards
• Linux Network Services
• Troubleshooting the System
• Linux Hacking
• cyberspace
• Linux
• national security
• Wifi hack tool
• Gmail inbox
• system architecture
• network security protection
• information technology
• curriculum
• computer security
• data security
• computer engineering
• Security Principles
• Access Control
• Windows Security
• Server Security
• Linux Distributions
• Stopping Linux
• Manipulating Files
• Secure Linux Box
• Installing UbuntU
• System Administrators
• Publishing Documents
• Red Hat Enterprise Linux
• Network Services
• Security Administration
• System Performance
• System Service Access Controls
• Organizing Networked Systems
• Lesson LPI 202
• LPI 202
• Advancer Linux
• Netword Administration
• Ipchains and Iptables
• Linux Installation
• Security
• Software Related
• Securities Software
• Compiler Functionality
• Red Hat Linux System
• Linux System Maintenance
• Problem Solving
• Network Administration Defined
• điều hành mạng
• hệ thống mạng
• dịch vụ DNS