CS6401 OS Notes, Operating System Lecture Notes – CSE 4th SEM Anna University


CS6401 OS Notes

Anna University Regulation 2013 Computer Science Engineering (CSE) CS6401 OS Notes for all 5 units are provided below. Download link for CSE 4th SEM CS6401 Operating System Lecture Notes are listed down for students to make perfect utilization and score maximum marks with our study materials.

 CS6401- Operating System


1.1 introduction

An operating system acts as an intermediary between the user of a computer and the computer hardware. The purpose of an operating system is to provide an environment in which a user can execute programs in a convenient and efficient manner. An operating system is a program that manages a computer’s hardware. It also provides a basis for application programs and acts as an intermediary between the computer user and the computer hardware.

An amazing aspect of operating systems is how they vary in accomplishing these tasks. Mainframe operating systems are designed primarily to optimize utilization of hardware. Personal computer (PC) operating systems support complex games, business applications, and everything in between. Operating systems for mobile computers provide an environment in which a user can easily interface with the computer to execute programs. Thus, some operating systems are designed to be convenient, others to be efficient, and others to be some combination of the two.

1.2 Computer system overview

A computer system can be divided roughly into four components: the hardware, the operating system, the application programs, and the users (Figure 1.1). The hardware—the central processing unit (CPU), the memory, and the input/output (I/O) devices—provides the basic computing resources for the system. The application programs—such as word processors, spreadsheets, compilers, and Web browsers— define the ways in which these resources are used to solve users’ computing problems. The operating system controls the hardware and coordinates its use among the various application programs for the various users.

CS6401 OS  Unit 1 notes – Download Here
CS6401 OS  Unit 2  notes – Download Here
CS6401 OS  Unit 3  notes – Download Here
CS6401 OS  Unit 4  notes – Download Here
CS6401 OS  Unit 5  notes – Download Here
If you require any other notes/study materials, you can comment in the below section.

Related Links
For CS6401 OS Previous Year Question Papers – Click here
For CS6401 OS Question Bank/2marks 16marks with answers – Click here
For CS6401 OS Important Questions/Answer Key – Click here
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Anna University 4th SEM CSE OS Lecture Notes
CS6401 Operating System Notes free download
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CS6401 Notes, OS Unit wise Lecture Notes – CSE 4th Semester


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