Operating System Tutorial

Operating System Tutorial Types of Operating System Evolution of Operating System Functions of Operating System Operating System Properties Operating System Services Components of Operating System Needs of the Operating System

Operating Systems

Linux Operating System Unix Operating System Ubuntu Operating System Chrome Operating Systems Fedora Operating System MAC Operating System MS Windows Operating System Solaris Operating System Cooperative Operating System CorelDRAW Operating System CentOS FreeBSD Operating Systems Batch Operating System MS-DOS Operating System Commercial Mobile Operating Systems

Differences

Difference Between Multi-programming and Multitasking Difference between C-LOOK and C-SCAN Difference between Rotational Latency and Disk Assess Time Trap vs Interrupt Difference between C-SCAN and SSTF Difference between SCAN and FCFS Difference between Seek Time and Disk Access Time Difference between SSTF and LOOK Difference between Process and Program in the Operating System Difference between Protection and Security in Operating System

How To

How to implement Monitors using Semaphores How to Install a Different Operating System on a PC

Questions

What is Kernel and Types of Kernel What is DOS Operating System What is Thread and Types of Thread What is Process Scheduler and Process Queue What is Context Switching What is CPU Scheduling What is Producer-Consumer Problem What is Semaphore in Operating System Monitors in Operating System What is Deadlock What is Paging and Segmentation What is Demand Paging What is Virtual Memory What is a Long term Scheduler What is Page Replacement in Operating System What is BSR Mode What is Convoy Effect What is Job Sequencing in Operating System Why is it critical for the Scheduler to distinguish between I/O-bound and CPU-bound programs Why is there a Need for an Operating System

Misc

Process Management Process State Scheduling Algorithm FCFS (First-come-First-Serve) Scheduling SJF (Shortest Job First) Scheduling Round-Robin CPU Scheduling Priority Based Scheduling HRRN (Highest Response Ratio Next) Scheduling Process Synchronization Lock Variable Mechanism TSL Mechanism Turn Variable Mechanism Interested Variable Mechanism Deadlock Avoidance Strategies for Handling Deadlock Deadlock Prevention Deadlock Detection and Recovery Resource Allocation Graph Banker’s Algorithm in Operating System Fixed Partitioning and Dynamic Partitioning Partitioning Algorithms Disk Scheduling Algorithms FCFS and SSTF Disk Scheduling Algorithm SCAN and C-SCAN Disk Scheduling Algorithm Look and C-Look Disk Scheduling Algorithm File in Operating System File Access Methods in Operating System File Allocation Method Directory Structure in Operating System N-Step-SCAN Disk Scheduling Feedback Queue in Operating System Contiguous Memory Allocation in Operating System Real-time Operating System Starvation in Operating System Thrashing in Operating System 5 Goals of Operating System Advantages of Operating System Advantages of UNIX Operating System Bit Vector in Operating System Booting Process in Operating System Can a Computer Run Without the Operating System Dining Philosophers Problem in Operating System Free Space Management in Operating System Inter Process Communication in Operating System Swapping in Operating System Memory Management in Operating System Multiprogramming Operating System Multitasking Operating Systems Multi-user Operating Systems Non-Contiguous Memory Allocation in Operating System Page Table in Operating System Process Scheduling in Operating System Segmentation in Operating System Simple Structure in Operating System Single-User Operating System Two Phase Locking Protocol Advantages and Disadvantages of Operating System Arithmetic operations in binary number system Assemblers in the operating system Bakery Algorithm in Operating System Benefits of Ubuntu Operating System CPU Scheduling Criteria in Operating System Critical Section in Operating System Device Management in Operating System Linux Scheduler in Operating System Long Term Scheduler in Operating System Mutex in Operating System Operating System Failure Peterson's Solution in Operating System Privileged and Non-Privileged Instructions in Operating System Swapping in Operating System Types of Operating System Zombie and Orphan Process in Operating System 62-bit operating system Advantages and Disadvantages of Batch Operating System Boot Block and Bad Block in Operating System Contiguous and Non - Contiguous Memory Allocation in Operating System Control and Distribution Systems in Operations Management Control Program in Operating System Convergent Technologies in Operating System Convoy Effect in Operating System Copy Operating Systems to SSD Core Components of Operating System Core of UNIX Operating System Correct Value to return to the Operating System Corrupted Operating System Cos is Smart Card Operating System Cosmos Operating Systems Examples Generation of Operating System Hardware Solution in Operating System Process Control Block in Operating System Function of Kernel in Operating System Operating System Layers History of Debian Operating Systems Branches and Architecture of Debian Operating Systems Features and Packages of Debian Operating Systems Installation of Operating System on a New PC Organizational Structure and Development in Debian Operating Systems User Interface in Operating System Types Of Memory in OS Operating System in Nokia Multilevel Paging in OS Memory Mapping Techniques in OS Memory Layout of a Process in Operating System Hardware Protection in Operating System Functions of File Management in Operating System Core of Linux Operating System Cache Replacement Policy in Operating System Cache Line and Cache Size in Operating System What is Memory Mapping? Difference Between Network Operating System And Distributed Operating System What is the difference between a Hard link and a Soft Link? Principles of Preemptive Scheduling Process Scheduling Algorithms What is NOS? What is the Interrupt I/O Process? What is Time Sharing OS What is process termination? What is Time-Sharing Operating System What is Batch File File system manipulation What is Message-passing Technique in OS Logical Clock in Distributed System

Commercial Mobile Operating Systems

Introduction to Commercial Mobile Operating Systems

A computer program's common services are managed by an operating system (OS), which also handles computer hardware and software resources. The user can communicate with the computer through this interface between hardware and user without being aware of how the hardware functions. An OS's typical activities include controlling input and output devices, scheduling tasks, handling network interactions, and managing memory. The machine wouldn't be able to run applications, retrieve data, or even start up without an OS. It serves as a conduit between the user and the hardware, giving the user a simple way to communicate with the device.

Additionally, it offers programs and application services, including memory management, multitasking, device drivers, and network access. An operating system offers authentication and access control tools to prevent unwanted access to the system. Along with capabilities to recover from system crashes, it also offers tools to identify viruses and other harmful applications. Each of these has its advantages and disadvantages as well as characteristics that make them more suitable for particular jobs. For instance, Linux was created for system administrators and developers, but Windows was created for the common user.

It serves as a conduit between the user and the hardware, presenting an intuitive user interface and offering services to programs and applications. It is also in charge of security, including systems for access control and authentication to stop unauthorized access to the system.

Overview of Commercial Mobile Operating Systems:

A commercial mobile operating system is a software platform created expressly for mobile devices, including smartphones and tablets, to execute applications. Commercial mobile operating systems are similar to desktop operating systems in terms of features and functionality. There are some differences, though. Mobile operating systems are made to be more user-friendly and to make the most of the touch-screen and smaller displays that come with mobile devices.

These operating systems are also built to use less power and support various hardware devices, including cameras, GPS, Wi-Fi, and Bluetooth. The most widely used commercial mobile operating system is Android. It was created by Google and is utilized by numerous businesses, including wireless providers. Because this operating system is open source, programmers can alter it to suit the requirements of their devices. Google Maps and the Google Play Store are only two of the many programs and services available. It supports various hardware elements, including cameras, GPS, and Wi-Fi. It provides electricity to the iPod touch, iPhone, and iPad.

  • Additionally, it supports a variety of hardware parts, including the camera, GPS, and Wi-Fi. Microsoft's Windows Phone is the third most popular commercial mobile operating system.
  • It offers various programs, including the Windows Store and Xbox Live, and features an easy-to-use, intuitive user interface.
  • Additionally, it supports a variety of hardware elements, including Bluetooth, Wi-Fi, and GPS.
  • Commercial mobile operating systems offer users a safe and convenient setting to interact with applications and services.
  • These operating systems are ideal for various user types due to their unique features and functionalities.
  • These operating systems give users access to various services and capabilities on their devices, including texting, web browsing, media playing, applications, and more.
  • Apple's exclusive mobile operating system is called iOS.
  • It only works with Apple's iPhone, iPad, and iPod Touch gadgets.
  • Direct manipulation and many touches are the foundation of the user interface.
  • It has functions like iCloud, Siri speech recognition, FaceTime, iMessage, and more.
  • Google's open-source mobile operating system is called Android.

An operating system for mobile devices enables users to use other application software on their phones, tablets, etc. Additionally, it is a particular category of operating system created especially for smartphones, tablets, smartwatches, etc. Additionally, they combine PC operating systems with some mobile-specific functionality. They are also rather lightweight and simple.

Additionally, it manages all communications between the hardware and software. Before learning about various mobile operating systems, let's examine several of their functions.

Functions of operating systems

An operating system carries out various duties. Let's research them. These are a few of the OS's features:

Commercial Mobile Operating Systems

Memory management

It is the control of the major or main memory. Furthermore, the main memory must contain the application that is being run. Consequently, more than one program may be active at once. Consequently, managing the RAM is necessary.

  1. The operating system manages memory allocation and deallocation.
  2. Distributes memory while using several processors.

Process management

The OS:

  1. Assigns and removes CPU resources to the processes. So, CPU Scheduling is another term for it.
  2. Records the state of the CPU.
  3. Device management
  4. The OS assigns and releases resources to various processes.

The processes may call for certain devices in order to function. The OS is responsible for managing this.

  1. Maintain track of the gadgets.

File management

A system's files are kept in several folders.

  • The OS maintains track of the location and status of files.
  • Allocates and deals with resource allocation.

Other functions

  1. Error detection is one of the OS's additional capabilities.
  2. Documenting system performance.
  3. Interoperability of various software, etc.

Types of popular operating systems

Commercial Mobile Operating Systems

Android OS

Among mobile operating systems, the Android OS is the most widely used. Furthermore, Android was created by Google. Additionally, it is a free and open-source operating system. The kernel of this operating system is Linux. Every new update has a name based on a "dessert," such as Cupcake, Donut, Eclair, Oreo, Kitkat, etc.

Bada

The company that launched this operating system is Samsung. In 2010, it first hit the market. Additionally, it has capabilities like multipoint touch, 3-D graphics, and program installation.

Blackberry OS

It was created especially for BlackBerry-compatible smartphones. Additionally, business users find it handy.

Apple ios

It is one of the most widely used OSes after Android. It is made to work with Apple products, including iPhones, iPad tablets, and other mobile devices. The app store is also a feature of Apple iOS. Additionally, it contains several robust security measures.

Windows mobile operating system

Microsoft created this operating system. It is intended for cell phones and small PCs. Additionally, it incorporates elements from the Windows OS for computers and other functionality for mobile devices.

Symbian OS

Symbian Ltd. also developed this OS; Nokia was the first to implement it in its mobile phones. Additionally, it offers communication at a high degree of integration. Java is the foundation of this OS.

Harmony OS

Additionally, Huawei is its creator. It is the newest OS. It is intended primarily for usage in IoT devices.

Palm OS

 Garnet OS is another name for it.

Web OS

Palm Ltd is the company behind it. Additionally, it is built on the Linux kernel, and HP employs it in their touchpads and mobile devices.

Features of mobile operating system

Commercial Mobile Operating Systems
  1. Easy to use
  2. Good app store
  3. Good battery life
  4. Data usage and organization

Simple to use

  1. The visuals ought to be appealing.
  2. The features and buttons should be simple to use. Additionally, the features should be simple enough.
  3. Features must be strong and practical.

A reliable app shop

  1. An OS's fundamental component is its app store.
  2. A crucial component of an OS is good and practical applications.

Long battery life Power is one of a smartphone's primary requirements.

  1. They need power for sensors, CPUs, etc. As a result, the battery plays a crucial part.
  2. Because smartphones use more power than ever, having a reliable battery backup is crucial.

Organizing and using data

  1. The main goal of an operating system should be to manage network and data utilization. It ought to maintain the restriction and prerequisite in mind.
  2. A decent OS should keep this data in a highly safe and orderly manner. Additionally, the data must be simply and immediately accessible.

Components of mobile operating system

A mobile OS has the same components as a standard OS. These are the components:

1. Kernel

An OS's kernel is its brain or heart.

2. Activity Execution

For the statements to run and connect the application software to the hardware, the OS runs several processes. Every time a process runs, it consumes resources such as memory, space, and others.

3. Interrupt

Hardware devices mostly use to interact with the CPU. Essentially, it is a signal the device sends to ask the CPU for something. Additionally, if an interrupt happens, the CPU momentarily halts the execution of the current process.

4. Memory Control

It is the control of the major or main memory. Furthermore, the main memory must contain the application that is being run. Consequently, more than one program may be active at once. Consequently, managing the RAM is necessary.

  • The operating system manages memory allocation and deallocation.
  • Distributes memory while using several processors.

5. Multitasking

It is carrying out many things concurrently. The OS allows the user to operate several processes at once without any issues.

6. User Interface

GUI, or graphic user interface, stands for. As the name implies, it gives the user a graphical interface to communicate with the computer. Icons, menus, and other user-interaction tools are used. Furthermore, by clicking these elements, the user may engage easily.

7. Kernel

An OS's kernel is its brain or heart. It has all the tools and features needed to control how OS operates.

8. Activity Execution

For the statements to run and connect the application software to the hardware, the OS runs several processes. Every time a process runs, it consumes resources such as memory, space, and others.

9. Interrupt

Hardware devices mostly use to interact with the CPU. Essentially, it is a signal the device sends to ask the CPU for something. Additionally, if an interrupt happens, the CPU momentarily halts the execution of the current process.

10. Memory Control

It is the control of the major or main memory. Furthermore, the main memory must contain the application that is being run. Consequently, more than one program may be active at once. Consequently, managing the RAM is necessary.