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What is an operating system and what are the different types of operating systems?
Operating System
An Operating System or OS is a software program that allows the computer hardware to communicate and operate with the computer software. With no an operating system a computer would be useless.
Operating Systems types
As computers have developed and progressed thus have the types of operating systems. Below is an essential list of the different types of operating systems and a few instances of Operating Systems that fall into each of the categories. Several computer Operating Systems will fall into more then one of the below categories.
GUI
Multi-user
Multiprocessing
Multitasking
Multithreading
what is file abstraction?
Safety algorithm : This is to make sure if the system is in safe state or not. It may need an order of m x n2 operation to determine if the state of the system is safe or not.
List the four steps that are essential to run a program on a completely dedicated machine. a. Reserve machine time. b. Manually load program into memory. c. Load starting
Explain about deadlock prevention? In order for the occurrence of deadlock, the four conditions like mutual exclusion, hold and wait, no pre-emption and circular wait must hap
single pass assembler
Second-Chance algorithm When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, thoug
Operating Systems have evolved tremendously in the last few decades. The first approach for building Operating Systems, taken during the 40s through early 60s, was to allow only on
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
what is file?explain the file access methods?
Q. Presume an operating system maps user-level threads to the kernel using the many-to-many model and the mapping is done through LWPs. Additionally the system allows developers to
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