Introducing Linux Using the Linux user interface in Software

Making Code128 in Software Introducing Linux Using the Linux user interface

Introducing Linux Using the Linux user interface
Code 128 Code Set B Creation In None
Using Barcode generator for Software Control to generate, create Code 128 Code Set A image in Software applications.
Decode Code 128C In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Let s begin by introducing you to the Linux operating system
Code 128 Creator In Visual C#
Using Barcode creation for VS .NET Control to generate, create Code 128B image in VS .NET applications.
Code 128 Code Set C Generator In .NET
Using Barcode generation for ASP.NET Control to generate, create ANSI/AIM Code 128 image in ASP.NET applications.
Describe the Background and History of Linux
Code 128 Maker In VS .NET
Using Barcode drawer for VS .NET Control to generate, create Code 128A image in VS .NET applications.
Code 128 Printer In Visual Basic .NET
Using Barcode generation for Visual Studio .NET Control to generate, create Code 128C image in .NET framework applications.
CERTIFICATION OBJECTIVE 101
Create Bar Code In None
Using Barcode drawer for Software Control to generate, create bar code image in Software applications.
Bar Code Creation In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
Describe the Background and History of Linux
Generating Code 39 In None
Using Barcode drawer for Software Control to generate, create Code 39 image in Software applications.
Create UPC Symbol In None
Using Barcode generation for Software Control to generate, create UPC A image in Software applications.
In this part of this chapter we re going to spend some time getting acquainted with Linux Specifically, we re going to discuss:
GS1-128 Generator In None
Using Barcode generation for Software Control to generate, create GS1 128 image in Software applications.
Code 128 Code Set C Printer In None
Using Barcode drawer for Software Control to generate, create Code 128 image in Software applications.
The role and function of Linux The historical development of Linux Linux distributions Common Linux roles
Identcode Maker In None
Using Barcode maker for Software Control to generate, create Identcode image in Software applications.
Code 39 Extended Decoder In .NET Framework
Using Barcode decoder for VS .NET Control to read, scan read, scan image in VS .NET applications.
The first topic we need to review is the role Linux plays in a computer system
GTIN - 12 Generation In None
Using Barcode generator for Excel Control to generate, create UPC Code image in Microsoft Excel applications.
Code39 Printer In Visual C#
Using Barcode creator for .NET Control to generate, create Code 39 Full ASCII image in .NET framework applications.
The Role and Function of Linux
Code 39 Full ASCII Generator In VS .NET
Using Barcode generation for .NET framework Control to generate, create USS Code 39 image in VS .NET applications.
UCC-128 Generation In VB.NET
Using Barcode generation for VS .NET Control to generate, create GS1 128 image in .NET applications.
Linux is an operating system All operating systems, including Linux, provide four key functions in a computer system:
Data Matrix Creation In Java
Using Barcode maker for Java Control to generate, create Data Matrix image in Java applications.
EAN-13 Supplement 5 Maker In Java
Using Barcode generator for Java Control to generate, create EAN / UCC - 13 image in Java applications.
Application Platform
An operating system provides applications with a platform where they can run, managing their access to the CPU and system memory The operating system also serves as a mediator between running applications and the system hardware Most applications are not written to directly address a computer s hardware Instead, most operating systems include pre-written code that can be called from an application to access system hardware, such as memory, hard drives, and communication ports This feature makes life much easier for programmers Instead of having to write code for doing these tasks in each and every program, they can simply reuse this existing code provided by the operating system It also ensures that one application running on the system doesn t try to use memory already in use by another application, and that applications don t use an inordinate amount of CPU time The operating system is also responsible for providing an efficient and reliable means for storing information Usually this is done using some type of storage device, such as a hard disk drive, that has been formatted with a particular type of file system that organizes the information in an easily retrievable format
Hardware Moderator
Data Storage
1: Introducing Linux
Security
The operating system is responsible for providing a degree of security for the data it hosts The system administrator can create rules and grant rights that determine who can access what information Some operating systems, such as Linux and Windows 2000/XP, do this job very well Others, such as DOS or Windows 98, provide only a very minimal level of security The operating system manages connectivity between computer systems using a variety of network media and interfaces, including infrared, Ethernet, RS-232, and wireless
Connectivity
Believe it or not, I frequently encounter people who don t understand the role Linux plays in a computer system They are under the mistaken impression that Linux is some kind of killer application that they can run under Windows on their workstation This is mainly due to the fact that most users in recent years have grown up using Microsoft Windows on their computers Their home computer came with Windows bundled on it; their computer at work probably runs Windows as well Because of this, they perceive the operating system and the hardware of their computer as being married together in an inseparable union You may have heard someone refer to his or her computer as a Windows computer Actually, the computer hardware and the operating system are independent of each other That s because the modern PC is modular in nature The Windows operating system can be easily removed from the system and any compatible operating system can be installed in its place, including DOS, Windows, Linux, Solaris, and even Mac OS (if you install a special expansion board with the appropriate ROM chip) The Linux operating system is composed of the following components:
The Linux Kernel
This is the heart of Linux; hence it is called the kernel The kernel is the actual operating system itself It s the component that fulfills the key operating system duties discussed above
Libraries
Libraries are pre-written code pieces that application programmers use in their programs As we discussed earlier, this can be a huge time saver Imagine what would happen if you were a programmer and you had to include code in your applications that would allow it to work with every type of hard disk drive interface currently on the market What a task! With libraries, the programmer doesn t care whether a SCSI or an IDE hard drive is installed in the system He or she simply calls the appropriate library and tells the operating system that data is to be written or read from the drive The operating system takes care of the rest
Copyright © OnBarcode.com . All rights reserved.