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Articles by Pradeep Kumar
Page 3 of 104
Difference between Host and Guest Operating Systems
Virtualization is the process of creating virtual versions of operating systems, servers, and network resources. It allows applications that lack compatibility with a system to run on the same computer by breaking the system into multiple virtual environments. In virtualization, the physical system is divided into multiple parts called virtual machines. The original system is known as the Host system with its Host OS, while the virtual machines are called Guest systems running their respective Guest OS. Virtualization Architecture Physical Hardware (CPU, Memory, ...
Read MoreDifference between Swapping and Context Switching
In computer systems, swapping and context switching are two fundamental mechanisms that serve different purposes in process management. While both contribute to system efficiency and multitasking capabilities, they operate at different levels and address distinct system requirements. What is Swapping? Swapping is a memory management technique where an entire process or its segments are moved between main memory (RAM) and secondary storage (disk). This allows the system to accommodate more processes than physical memory can handle by temporarily storing inactive processes on disk. Swapping Process Main Memory ...
Read MoreDifference between Mobile and Desktop Operating System
An Operating System (OS) is a bridge between software and underlying hardware components. It is the first program loaded by the BIOS when a computer is turned on and manages all system resources including memory, files, input/output operations, and external drivers. Operating systems enable multitasking, provide user interfaces through CLI or GUI, and allow data storage and sharing. There are different types of operating systems designed for various computing platforms. This article explores the key differences between Mobile Operating Systems and Desktop Operating Systems. What is a Mobile Operating System? A Mobile Operating System is lightweight system ...
Read MoreDifference between Trap and Interrupt in Operating System
An operating system manages computer system resources and serves as an interface between hardware and software. A crucial component of operating system design is handling events that occur during program execution. Traps and interrupts are two fundamental mechanisms used for this purpose. A trap is a software-generated event that results from an error, exception, or system call in the currently executing program. Examples include division by zero, page faults, and illegal instructions. When a trap occurs, the CPU immediately switches to kernel mode and transfers control to the operating system's trap handler. An interrupt is a hardware-generated event ...
Read MoreDifference between Transfer Time and Disk Access Time in Disk Scheduling
Disk scheduling is a crucial component of operating systems that manages the order in which disk requests are serviced. When analyzing disk performance, two important metrics to consider are Transfer Time and Disk Access Time. Understanding the difference between these metrics provides insights into the efficiency and responsiveness of disk scheduling algorithms. What is Transfer Time in Disk Scheduling? Transfer time, also known as data transfer time, is the time required to move a block of data between the disk and the main memory. It represents the actual duration for reading or writing data once the disk head ...
Read MoreDifference between Turn Around Time (TAT) and Waiting Time (WT) in CPU Scheduling
CPU scheduling is a crucial aspect of operating systems that determines the order in which processes are executed on the central processing unit (CPU). Two important metrics used to evaluate the efficiency of CPU scheduling algorithms are Turn Around Time (TAT) and Waiting Time (WT). Understanding the difference between these two metrics provides insights into the performance and responsiveness of a CPU scheduling algorithm. What is Turn Around Time (TAT)? Turn Around Time (TAT) is the total time taken for a process to complete its execution from the moment it enters the system until it finishes. It includes ...
Read MoreDifference between GNU and Unix
Even though the majority of us are accustomed to using Windows as our primary operating system, it is important for us to at least be familiar with other operating systems such as Unix, Linux, and others. This does not imply that Windows is the only operating system that has been used globally; rather, it indicates that other systems also take a larger proportion in terms of utilisation. The end functionality, which is using the computers to make our tasks easier, is the same regardless of the operating system that we might choose. Read through this article to find out ...
Read MoreDifference between DOS and Unix
DOS and Unix are two fundamentally different operating systems that represent distinct eras and approaches in computing. DOS is designed for single-user, single-tasking environments on x86 computers, while Unix is a multi-user, multi-tasking system that supports various hardware platforms. What is DOS? DOS (Disk Operating System) is a single-user operating system originally developed by Tim Patterson as 86-DOS in 1980. Microsoft acquired it and released MS-DOS in 1981, making it the primary OS for early personal computers before Windows. DOS operates through a command-line interface (CLI) and is written in C and x86 assembly language. It features ...
Read MoreDifference between Operating System and Application Software
A software is a set of rules or instructions that are given to a computer to perform some function. Basically, software is classified into two types − Application software and System software. System software is the main software of a computer that has direct access to the system's hardware. It takes care and monitors all the other functions of a computer. Application software is additional software in a computer which is used to perform a specific function. Users have direct access to this application software and this software is not mandatory in a system. We can use the system ...
Read MoreDifference between Processor and Operating System
A computer is an electronic device that can store, manipulate and process data. It consists of many hardware and software components. The processor and operating system are two fundamental parts of a computer. While the processor is considered the brain of the system, the operating system acts as the mind. What is a Processor? A processor is a small electronic circuit present on the motherboard that processes and executes programs and instructions in computers, mobile phones, and many other electronic devices. The processor is known as the brain of the computer. While often referred to as CPU (Central ...
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