Skip to main content

ARCHITECTURE OF AN OPERATING SYSTEM

      

ARCHITECTURE OF AN OPERATING SYSTEM

Architecture is the fundamental of an operating system that defines the interconnection between the system components. An operating system can have different architectures:

1.     Monolithic architecture

2.    Layerd archtecture.

3.     Virtual machine architecture

4.     Exokernel architecture

5.    Client server architecture 

6.     Micro kernel architecture

Monolithic Architecture

Monolith means composed all in one piece. The Monolithic application describes a single-tiered software application in which different components combined into a single program from a single platform. Components can be:

  • Authorization — responsible for authorizing a user
  • Presentation — responsible for handling HTTP requests and responding with either HTML or JSON/XML (for web services APIs).
  • Business logic — the application’s business logic.
  • Database layer — data access objects responsible for accessing the database.
  • Application integration — integration with other services (e.g. via messaging or REST API). Or integration with any other Data sources.
  • Notification module — responsible for sending email notifications whenever needed.
  • For more explanation follow on Monolithic architecture


Comments

Post a Comment

Popular posts from this blog

Defination of OS(operating system) and its concepts

    What do you mean by operating system?     Definition :  An operating system is a program that act as an interface between the user of a computer and the                                      Computer hardware. Operating system is a first program that gets loaded into the memory through a process called booting. Concepts of operating system : ·                       The purpose of operating system is to provide an environment in which a user can execute program in a convenient and efficient manner. ·                       Operating system is an integrated set of program that ma...
3 comments
Read more

Multi Level Queue Scheduling (MLQ)

  Multi Level Queue Scheduling (MLQ) ·          Multilevel queue scheduling classifies the processes according to their types for example, a multilevel queue scheduling algorithm makes a common. ·          In this scheduling ready queue is divided into various queue that are called sub queues. A subqueue is a distinct operational queue ·          The process are permanently assigned to subqueues, generally based on some property of the process such as memory size,priority or process type ·          Each subqueue has its process sucheduling algorithm. For example interactive process at the foreground may use round robin scheduling while batch jobs at the background may use the FCFS method ·          For example, consider a system with four different queues 1.   ...
Post a Comment
Read more

Time Sharing System and its Requirements

  Time sharing  system ·           Time sharing refers to the allocation of computer resources in a time dependent fashion to several program simultaneously ·           A time sharing system has many user terminals that are connected to same computer simultaneously. Using these terminal, different users can work on a system at the same time ·           Thus, it uses multi programming with a special CPU scheduling among all the last one, and then again beginning from the first one ·           In time sharing system, the CPU time is divided among all the users on schedule basis. ·           It release the CPU under any of the following three conditions: 1.         When the allotted time slice expires. 2.    ...
Post a Comment
Read more

Multitasking System

  Multitasking system ·           Technically , multitasking is same as multi programming ·           In a multitasking operating system, s single user can execute multiple programs at the same time ·           We can also say, multitasking is the system capability to work on more than one job or process at the same time. ·           It means that whenever a job needs to perform I/O operation, the cpu can be used for execting some other job                                                        diagram of multi tasking     ·           There are two type of multitasking : 1.       ...
Post a Comment
Read more

Distributed system

  Distributed system ·           A distributed system is a collection of processor located in geographical dispersal physical location. ·           In this system, the workhold is distributed or divided between two or more computers that are linked together by communication network . that is the different processors communicate using communication links, such as telephone lines and buses3 ·           The various processors do not share memory, clock ,or peripheral devices instead each processors has its local memory. ·           The purpose of distributed system is to provide an efficient and convenient environment for sharing of resources. ·           Some example of distributed operating system are amoeba, angle, chorus, much, alpha kernel. ·   ...
Post a Comment
Read more