This document is an introduction to operating systems presented by Arzoo Sorout. It defines an operating system as software that manages computer hardware and resources and provides common services for programs. It outlines the objectives, functions, structure, evolution and types of operating systems. Key points covered include how operating systems enable programs to work, act as an interface between hardware and software, and perform tasks like memory management and I/O control. Batch processing, multiprogramming, timesharing and examples of single-user and multi-user operating systems are also summarized.
What is operating system? Operating System and Its Function. Advantages and Disadvantages of Major OS’s. History of GNU/Linux. Features of Linux OS. The Indianized version of GNU/Linux OS: BOSS (Bharat Operating System Solutions). Directory Structure of Linux OS and Windows OS.
System is a collection of programs which control the overall functions of which control the overall functions of computer.
An operating system is a program that acts as an interface between the user of a computer and the computer hardware. The purpose of operating system is to provide an environment in which a user can execute programs in a efficient manner. Operating system also acts as a platform on which various application programs such as word processor and excel are executed.
This slides are related to the operating system. The definition, general background and examples in the introductory slides. Desktop based operating system user acceptance rate is also discussed in one of the slides. The slides further includes the two different types of operating system, that are CUI and GUI with examples of each. Moreover the slides includes the five major functions of Operation system with its detailed description of each function in the note section. There is also reference section for further reading about Operating System.
In this , I add the Some Basic Idea of Operating System. It Include :-
1) Introduction and Background
2) Structure and Background
3) Main Function Of Operating System
4) Some Popular Operating System
5) Objective Of Operating System
6) Conclusion
What is operating system? Operating System and Its Function. Advantages and Disadvantages of Major OS’s. History of GNU/Linux. Features of Linux OS. The Indianized version of GNU/Linux OS: BOSS (Bharat Operating System Solutions). Directory Structure of Linux OS and Windows OS.
System is a collection of programs which control the overall functions of which control the overall functions of computer.
An operating system is a program that acts as an interface between the user of a computer and the computer hardware. The purpose of operating system is to provide an environment in which a user can execute programs in a efficient manner. Operating system also acts as a platform on which various application programs such as word processor and excel are executed.
This slides are related to the operating system. The definition, general background and examples in the introductory slides. Desktop based operating system user acceptance rate is also discussed in one of the slides. The slides further includes the two different types of operating system, that are CUI and GUI with examples of each. Moreover the slides includes the five major functions of Operation system with its detailed description of each function in the note section. There is also reference section for further reading about Operating System.
In this , I add the Some Basic Idea of Operating System. It Include :-
1) Introduction and Background
2) Structure and Background
3) Main Function Of Operating System
4) Some Popular Operating System
5) Objective Of Operating System
6) Conclusion
This silde is all about how to install or how to work operating systems on computers ..
all slides is about operating systems. .
how much types of OS is available on the computers ..
totally develop or invent by Mayank Thanki ( www.gujrattinfo.com )
Unleash the Power of Your Computer with a Deep Dive into Operating Systems
Explore the hidden world of operating systems, the software maestros that orchestrate your computer's resources. This presentation delves into:
Resource Management and Coordination - How the OS juggles processor, memory, and devices for optimal performance.
Prioritization, Protection, and Parallelism - Ensuring tasks run smoothly, data is secure, and operations can happen simultaneously.
Command Interpreters and the Boot Process - How to communicate with your OS and initiate computer startup.
File and Directory Management - Mastering the organization of your digital world in DOS, UNIX, and Windows 2000.
Get ready to unlock the secrets behind your computer's efficiency and become a more informed user!
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
2. An operating systemoperating system (OS) is system software that
manages computer hardware and software resources
and provides common services for computer programs.
www.advanced.edu.in
3. OBJECTIVES:OBJECTIVES:
1. What is OS?
2. What OS does?
3. Structure of OS
4. Evolution of OS
5. Functions of OS
6. Types of OS
www.advanced.edu.in
4. Operating System is a software, which makes a
computer to actually work.
It is the software the enables all the programs we use.
The OS organizes and controls the hardware.
OS acts as an interface between the application
programs and the machine hardware.
Examples: Windows, Linux, Unix and Mac OS, etc.,
www.advanced.edu.in
5. An operating system performs basic tasks such as,
controlling and allocating memory,
prioritizing system requests,
controlling input and output devices,
facilitating networking and
managing file systems.
www.advanced.edu.in
7. The structure of OS consists of 4 layers:
1. Hardware
Hardware consists of CPU, Main memory, I/O
Devices, etc,
2. Software (Operating System)
Software includes process management
routines, memory management routines, I/O
control routines, file management routines.
(Contd…)
www.advanced.edu.in
8. 3. System programs
This layer consists of compilers, Assemblers,
linker etc.
4. Application programs
This is dependent on users need. Ex. Railway
reservation system, Bank database
management etc.,
www.advanced.edu.in
9. The evolution of operating systems went through seven
major phases.
Six of them significantly changed the ways in which
users accessed computers through the open shop, batch
processing, multiprogramming, timesharing, personal
computing, and distributed systems.
In the seventh phase the foundations of concurrent
programming were developed and demonstrated in
model operating systems.
(Contd…)
www.advanced.edu.in
10. Major
Phases
Technical
Innovations
Operating
Systems
Open Shop The idea of OS IBM 701 open shop
(1954)
Batch
Processing
Tape batching,
First-in, first-out
scheduling.
BKS system (1961)
Multi-
programming
Processor multiplexing,
Indivisible operations,
Demand paging,
Input/output spooling,
Priority scheduling,
Remote job entry
Atlas supervisor
(1961),
Exec II system (1966)
(Contd…)www.advanced.edu.in
11. Timesharing Simultaneous user
interaction,
On-line file systems
Multics file system
(1965),
Unix (1974)
Concurrent
Programming
Hierarchical systems,
Extensible kernels,
Parallel programming
concepts, Secure parallel
languages
RC 4000 system (1969),
13 Venus system
(1972),
14 Boss 2 system
(1975).
Personal
Computing
Graphic user interfaces OS 6 (1972)
Pilot system (1980)
Distributed
Systems
Remote servers WFS file server (1979)
Unix United RPC (1982)
24 Amoeba system
(1990)
www.advanced.edu.in
12. In Batch processing same type of jobs batch (BATCH- a
set of jobs with similar needs) together and execute at a
time.
The OS was simple, its major task was to transfer
control from one job to the next.
The job was submitted to the computer operator in form
of punch cards. At some later time the output appeared.
The OS was always resident in memory. (Ref. Fig. next
slide)
Common Input devices were card readers and tape
drives.
www.advanced.edu.in
13. Common output devices were line printers, tape drives,
and card punches.
Users did not interact directly with the computer
systems, but he prepared a job (comprising of the
program, the data, & some control information).
OS
User
program
area
www.advanced.edu.in
14. Multiprogramming is a technique to execute number of
programs simultaneously by a single processor.
In Multiprogramming, number of processes reside in
main memory at a time.
The OS picks and begins to executes one of the jobs in
the main memory.
If any I/O wait happened in a process, then CPU
switches from that job to another job.
Hence CPU in not idle at any time.
www.advanced.edu.in
15. OS
Job 1
Job 2
Job 3
Job 4
Job 5
• Figure depicts the layout of
multiprogramming system.
• The main memory consists of 5
jobs at a time, the CPU executes
one by one.
Advantages:
•Efficient memory utilization
•Throughput increases
•CPU is never idle, so
performance increases.
www.advanced.edu.in
16. Time sharing, or multitasking, is a logical extension of
multiprogramming.
Multiple jobs are executed by switching the CPU
between them.
In this, the CPU time is shared by different processes, so
it is called as “Time sharing Systems”.
Time slice is defined by the OS, for sharing CPU time
between processes.
Examples: Multics, Unix, etc.,
www.advanced.edu.in
17. The main functions of operating systems are:
1. Program creation
2. Program execution
3. Input/Output operations
4. Error detection
5. Resource allocation
6. Accounting
7. Protection
www.advanced.edu.in
18. Operating System can also be classified as-
Single User Systems
Multi User Systems
www.advanced.edu.in
19. Provides a platform for only one user at a time.
They are popularly associated with Desk Top
operating system which run on standalone
systems where no user accounts are required.
Example: DOS
www.advanced.edu.in
20. Provides regulated access for a number of users by
maintaining a database of known users.
Refers to computer systems that support two or more
simultaneous users.
Another term for multi-user is time sharing.
Ex: All mainframes and are multi-user systems.
Example: Unix
www.advanced.edu.in