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LINUX

AGENDA

operating system

types of software

archetecture of o.s

what is linux

history of linux

structure of linux

diff. b/w linux and windows

basic linux commands

user management

linux group

file management

file permission

file extraction

pipeline

filters commands

crontab

operating system

It is interface between computer system and computer user.

it communicate software and hardware.

software

it is nothing but a computer program which is used to perform a particular task.

types of software

  1. system software

software which help the system to run.

  1. application software

software which help application to run.

ex: ms office.t

COMPONENTS OF OPERATING SYSTEM

Process management

File management

Input-Output device management

Memory Management

Security Management

DIFFERENT TYPES OF O.S

LINUX

WINDOWS

MAC OS

APPLE

BLACKBERRY

ANDROID

MSDOS

WHAT IS LINUX

Linux is open source, multitasking, multiuser operating system.

HISTORY OF LINUX

Linux began in 1991 as a personal project by Finnish student Linus Torvalds to create a new free operating system kernel. Linux uses most of its tools from GNU software and are under GNU copyright. In 1992, he released the kernel under GNU General Public License.

COMPONENTS OF LINUX O.S

  1. KERNEL : Linux kernel is the core part of the operating system. It establishes communication between devices and software FOUR major responsibilities of kernel: Device management Memory management Process management Handling system calls

  2. System library : It contains some special programs that help in accessing the kernel’s features.

  3. Utility tools : Linux O.S has set of utility tools, which are usually a simple command.

  4. Development tools : It contains the programs which is majorly use to update our system.

LINUX DISTRIBUTIONS

It is an os that is made up of a collection of software based on linux kernel or say distribution contains the linux kernel & supporting libraries & software

ubuntu Red Hat Enterprise Linux Kali Arch Linux MX linux Rocky Linux Fedora

DIFFERENCE B/W LINUX AND WINDOW

LINUX: open source free free software secure no virus and malware Low Hardware cost customizable add feature

WINDOWS : closed source costs $150-$320 cost software insecure virus and malware high hardware cost not customizable

commands

it is a way to give instruction to system.