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Operating System Articles
Page 128 of 171
What are the different types of Mobile Operating Systems?
The different types of mobile operating system are as follows −Android OS (Open source)Android Operating System is one of the popular software developed by Android Inc Company. It’s an excellent rise because it was created just in 2008.The question is − Where can we download Android Apps?If you've got the Android-based phone you'll realize Google Play, the Android market, where you'll find tons of applications for this OS. It’s about 700 000 apps there.Features of Android OSThe features of Android OS are as follows −The interface of Android was developed in order to fulfil all user requirements.You can decorate your ...
Read MoreWhat are the features of Operating Systems?
The features of operating systems are increasing day by day. Because at the starting development of the OS it was used to handle storage taps but now it is working on GUI by throwing brilliant colours.Given below are the features of the operating system −Memory ManagementThe operating system controls the primary memory or main memory.Primary memory is a large array of bytes or words where each byte or word is assigned a certain address.It is a fast storage, and it can be accessed directly by the CPU which is present inside the system. If a program wants to be executed, ...
Read MoreWhat is Kernel and different types of Kernels?
Kernel is the important part of an Operating System. The kernel is the first program that is loaded after the boot loader whenever we start a system. The Kernel is present in the memory until the Operating System is shut-down.Kernel provides an interface between the user and the hardware components of the system. When a process makes a request to the Kernel, then it is called System Call.FunctionsThe functions of the kernel are as follows −Process managementAccess computer resourcesDevice managementMemory managementInterrupt handlingI/O communicationFile system...etc.Access Computer resource − A Kernel accesses various computer resources like the CPU, I/O devices and other ...
Read MoreWhat are the advantages and disadvantages of operating systems?
Each operating system has its own advantages and disadvantages, let us discuss in general the benefits and drawbacks of operating systems.AdvantagesThe advantages of Operating system are as follows −Computing Source − OS acts as an interface between the user and the hardware. It allows users to perform different tasks like input data, process the operation, and access the output. With the help of an operating system, users can communicate with computers to perform various functions like arithmetic calculations.User-Friendly Interface − Whenever the Windows operating system came into existence with Graphical User Interface (GUI), it became user friendly. It also helps ...
Read MoreWhat is the Network Operating System?
The operating system is a software which handles the computer's functionality like scheduling, input/output operation, resource allocation, file system manipulation, etc. and it acts as an interface between the user and hardware.The different types of operating systems are as follows −Batch Operating SystemMultiprogramming Operating SystemMultitasking Operating SystemMultiprocessing Operating SystemReal time Operating SystemNow let us discuss the Network operating system.Network Operating SystemThe OS specializes in network devices such as a router, switch, or firewall. The OS manages these network resources. The OS supports workstations, Personal Computers (PCs), older terminals connected on a Local Area Network (LAN).Examples of Network OSs are Microsoft ...
Read MoreWhat is the Real Time Operating System?
The operating system is a software which handles the computer's functionality like scheduling, input/output operation, resource allocation, file system manipulation, etc. and it acts as an interface between the user and hardware.The different types of operating systems are as follows −Batch Operating SystemMultiprogramming Operating SystemMultitasking Operating SystemMultiprocessing Operating SystemReal time Operating SystemNow, let us discuss the Real time operating system.Real-time operating systemAll real time operating systems are designed to execute their task within a particular time interval, and thus they have to be fast enough to be up to their deadline.Time constraints related with real-time systems simply means that time ...
Read MoreResetting a Root Password in Linux without External Media
Discuss how to recover the root password of Linux without using any external media. The version of Linux we are working with is CentOS version 8.2. Still, the procedures we will see can work with any Linux distro and many others. You may find that it doesn’t work with some Debian-based distro.To do this exercise, you should have the following requisites Prerequisites −Willingness to work in the Linux command line environment.Physical access to the Linux server(it cannot do this across a network).Procedures to follow to change the root passwordRestart the computer and interrupt the boot process at the grub screen ...
Read MoreWhat are the characteristics of batch, embedded, real time and mainframe operating systems?
Let us understand the characteristics of mainframe operating systems.Characteristics of Mainframe operating systemsThe characteristics of Mainframe operating systems are explained below −These systems have a large number of CPUs each having great processing power. All the CPUs with great processing power are combined into the Mainframe which as a result has the greatest processing power.The memory of the mainframe operating system is very large. It can even be about more than 8GB.Increased Performance/throughput as task load is shared: Mainframes systems share the task load among different processors and input/output devices. Thus, the processing power and efficiency increases multifold.Supports Time Sharing ...
Read MoreWhat is the history of the windows operating system and MSDOS?
In the year 1985, the operating system Windows was released by Microsoft. In the beginning, Windows was just a Graphical User Interface in its first version. Windows 1 is the name of the first version of Windows which was released in the year 1985.The purpose of Windows was to let people interact with the machine with a Graphical User Interface without using codes even for all purposes, even for starting a system.The three latest versions of windows are Windows 10 Home, Windows 10 Pro and Windows Enterprise.Process ManagementThe Windows operating system manages the process with the help of a function ...
Read MoreWhat are the levels of memory in the Operating System?
Inside the computer system the memory hierarchy is arranged from fastest to the slowest as given below −RegistersCaches memoryMain or Primary MemorySecondary MemoryThe memory hierarchy is depicted in the diagram given below −Let us discuss about each memory in detail.RegisterRegisters are very high speed memory, which is present inside the CPU. It is a temporary storage device that means it stores the data temporarily. Generally, they create a general purpose register file to store data. The register file capacity is 32 data words, and each register can be read or written from within a single clock cycle.Cache MemoryThe cache memory ...
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