Operating System

Introduction..!!!

An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs.

Gary Kildall developed the first operating system for the PC.

Operating System is a software, which makes a computer to actually work.

Written in low-level language.

History and Co- Founder Gary Kildall developed the first operating system for the PC, text-

based, he was indeed a pioneer in this regard. He was also an innovator, he restructured the operating system to be hardware-independent.

Gary Kildall was born on May 19, 1942 in Seattle, Washington. Sadly he is no longer with us, he past away in 1994; but the fruits of his labour will live on.

The Operating System was, and still is, quintessential to the advances and development of the modern computer, without it there would be no interaction, as we know it, between computer and usersThus the computer would have remained a one dimensional, flat system. But for the advent of the first operating system, for PC, by Gary Kildall , another rung on the ladder bringing the product closer to a potential, mass market.

It is unchallengeable, without the Operating System PCs couldn't 'be on every office desk, and in every home', Bill Gates; at least on the scale it is today

FUNCTIONS OF OS

Device configuration: Controls peripherals devices connected to the computer.

Management resources: Transfers files between main memory and secondary storage,manage use of the CPU,allocates memory to the requesting processes.

Interact with the user: Interacts between the computer and users/operator in a managed way.

Interface Platform: It allows the computer to run other applications.

Examples

Types…!!!

Operating System

Time-Sharing Multi-user Real-time Distribute

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TYPES…!!!!

Time-sharing: Allows more than one program to be running in concurrency.

Multi-user: the system permits multiple users to interact with the system at the same time.

Real-time: Responds to input instantly.e.g.,interrupt error in computer systems. General-purpose operating systems, such as DOS and UNIX, are not real-time.

Distributed: A distributed operating system manages a group of distinct computers and makes them appear to be a single computer.

Embedded: Embedded operating systems are designed to be used in embedded computer systems.

Examples

DOS/360 MAC OS UNIX LINUX MICROSOFT WINDOWS ANDROID WINDOWS PHONE IOS

COMPONENTS OF OS

OS

Kernel Networking Security User-

interface

COMPONENTS OF OS

Kernel: A kernel connects the application software to the hardware of a computer.

Networking: Networks can essentially allow a computer's operating system to access the resources of a remote computer to support the same functions as it could if those resources were connected directly to the local computer.

Security: A modern operating system provides access to a number of resources, which are available to software running on the system, and to external devices like networks via the kernel.

User-interface: The user interface is usually referred to as a shell and is essential if human interaction is to be supported.

WHAT IT MEANS FOR THE INDUSTRY??

It has meant that the computer industry has only three main contenders in the present market place. 

1. The OS sector of the industry has shrunk, and it appears to have further shrinkage, leaving the way clear for Apple and Microsoft, OS/2 not in the running, which means Microsoft will completely dominate the market. The implication here is, customers will not have much of a choice.

2. PC manufactures and Software developers, it would appear, will be at the mercy of Microsoft and its OSs (range); the implication then, Microsoft would have exclusive control

(contd...)

OPERATING SYSTEM of the global market, getting stronger by

the day. 3. On each office desktop, and in each home,

microsoft OSs and applications would be running, along with third party applications,  with a common operating system and application interface, under the directions of microsoft designs and determined directions. The implication here is, one large company would have sole control of the computer industry future; which cannot be a good thing for the industry nor for its customer base - it would imply anti-competitive practices and a strangle hold on software development.

CONCLUSION

Without Operating system the computers cannot run the application and we cannot do work in the computer.

The operating system in its current form empowers users of all ages, as well as small, medium and large businesses – from children whose needs are only to play games and access the internet; to more specialised, productive and engineer/constructive areas of work: secretarial, household economies to large corporations (each member of staff) – in its use and functions, across a range of platforms/architectures, as never before.

Presented By Group 3:

1. Richa Pandey 2. Rohit Singh 3. Rishav Kumar 4. Rohan Sarkhel 5. Rohan Jash 6. Ravi Kumar

Queries????

OPERATING SYSTEM