abhipounty

 Profile Answers by abhipounty 

• Feb 24th, 2006

 

main component of operating system are kernel and shell

shell is a interface between application program and kernel whenever application program wants some work to be done It contacts kernel and kernel inturn perform work with the help of device drivers .thus we can say

kernel is an interface between hardaware and shell.

kernel uses device drivers to control microcontroller card of peripherial device  and inturn work is being accompalished.

applicantion progam  ->  [shells ->kernel ->device driver -> controller card -> pysical hardaware]

                                  ABHISHEK TRIPATHI

                                M.C.A,     M.L.S.U. UDAIPUR (RAJ)

                              e-mail     abhipounty@yahoo.co.in

radhey

• May 6th, 2006

 

not a DOS (disk oprating system)

only shell and kernal.

rakesh trichy

 Profile Answers by rakesh trichy 

• Oct 11th, 2008

 

There are three main components:
1. Control programs
2. Sytem Service Programs
3. Utility programs

gokulnithish

 Profile Answers by gokulnithish 

• Jun 8th, 2010

 

There are three main components:

1. Control Programs
2. Sytem Service Programs
3. Utility Programs

1. Control Programs
Control & maintain the operation of computer 
Initial program loader (IPL)
Program in the form of firmware (software stored in ROM)
Computer ON, then electronic chip is automatically activated & IPL read the boot sector routine (BSR), reside in the primary memory

2. System Service Program
Support control programs
Divided into three portions
Linkage Editor
Librarian
Input/Output control system

3. Utility Programs
e.g. MS-DOS : Fdisk, FORMAT, ATTRIB, BACKUP, FIND  

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Gokul.K