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Q. Definition of Operating System?
Definition of Operating System:
• An Operating system is a program which controls execution of application programs and acts as an interface between user of a computer and computer hardware.
• A more common definition is as follows: operating system is the one program running at all times on the computer (typically called the kernel) with all else being applications programs.
• An Operating system is concerned with the allocation of services andresourceslikeprocessors, memory, information and devices. TheOperating System respectively includes programs to manage these resources like a traffic controller, a scheduler, memory management module, I/O programs and a file system.
Explain about disk scheduling with neat diagram? FCFS Scheduling SCAN scheduling C-SCAN scheduling SSTF scheduling LOOK Scheduling
Addventage
What are the benefits of multiprogramming? Responsiveness : Multithreading is an interactive application may permit a program to continue running even if part of it is block
advantages
What are the characteristics of SRS? i. Correct - The SRS should be made up to date when appropriate requirements are identified. ii. Unambiguous - When the requirements are
We will brie?y introduce paging to ?nish off this lecture. When a process is loaded, not all of the pages are immediately loaded, since it's possible that they will not all be need
Explain the various types of computer systems. Mainframe systems Large Number of CPU with Greatest Processing Power: Huge Memory Capacity: Increased Performance by s
Q. How Program execute in operating system? Program execution- The operating system fills the contents (or sections) of a file into memory as well as begins its execution. A us
Multi-user - A multi-user Operating System permits for multiple users to use the same computer at the same time and/or different times. Below are some instances of multi-user Op
What is an I/O subsystem? The control of devices connected to the computer is a main issue while designing operating systems. Since I/O devices differ widely in their function
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