Redhat Linux (RHEL) Notes by trainers

[surendra]

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What is an Operating system? Operating system is a collection of programs that coordinates the operation of computer
hardware and software

FUNCTION OPERATING SYSTEM
Process management Memory management Data management I/O management


WHAT IS A SHELL           
It is an interface between user and kernel Services provided by shell: It interprets all the commands to the kernel The kernel after processing the commands gives back to the shell

WHAT IS KERNAL
A set of functions that makes up the heart of an operating system It is used to provide an application interface between programs and physical devices Services provided by kernel are: Controls execution of processing Scheduling process fairly for execution on the CPU Allocating memory for an executing process 

Read complete Notes here


Notes part 1

http://www.mediafire.com/view/?q103r1qb2sl1k9x

Notes part 2

http://www.mediafire.com/view/?5s5sgra8zhcadc5

Notes part 3

http://www.mediafire.com/view/?8f3vbky87gij8nx

Note part 4

http://www.mediafire.com/view/?y1v266478zk7ypb