Operating System - created from Mind Map

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Definition

Structure

Functions

Features

Advantages

Types

Disadvantages

It is a set of commands and programs that control the basic processes of a computer and allows the operation of other programs and acts as an interface between the hadweare components of the computer and the user.

for example

Anroid

Mac

Linux

Windows

Exokernel

Virtual machines

Layered structured system

Monolithic system

client-server model

Operating system services

Memory management

Secondary-Storage Management

Job accounting

Process management

I/O System Management

Command interpretation

Security

Communication management

Device Management

File management

Networking

Protected and supervisor mode

Memory management Virtual Memory Multitasking

Program Execution

Handling I/O operations

Manipulation of the file system

Error Detection and handling

Resource allocation

Information and Resource Protection

Allows disk access and file systems Device drivers Networking Security

Allows you to hide details of hardware by creating an abstraction

The operating system must make sure that the computer system convenient to use

Easy to use with a GUI

Operating System acts as an intermediary among applications and the hardware components

It provides the computer system resources with easy to use format

Acts as an intermediator between all hardware's and software's of the system

Offers an environment in which a user may execute programs/applications

Batch Operating System

Multiprocessing OS

Real Time OS

Multitasking/Time Sharing OS

Distributed OS

Network OS

Mobile OS

Operating system's software is quite expensive for small size organization which adds burden on them

If any issue occurs in OS, you may lose all the contents which have been stored in your system

It is never entirely secure as a threat can occur at any time