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OS Basics

16 posts

Communication Structure in Operating System

Last Updated: 04 January 2023

In this article, we'll look at the communication structure of an operating system. It provides an interface between applications and other programs so that users can use t...read more

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Operating Systems

Technical Scripter 2022

Block and Character Devices in Operating System

Last Updated: 04 January 2023

Device Driver in computing refers to a special kind of software program or a specific type of software application that controls a specific hardware device that enables di...read more

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Operating Systems

Technical Scripter 2022

Blocking and Nonblocking IO in Operating System

Last Updated: 07 January 2023

Blocking and non-blocking IO are two different methods used by OS to handle I/O operations. A blocking call is where the OS decides that it needs to wait for a certain ope...read more

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Operating Systems

Technical Scripter 2022

Operating System Security

Last Updated: 26 February 2024

Protection refers to a mechanism that controls the access of programs, processes, or users to the resources defined by a computer system. We can take protection as a helpe...read more

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Operating Systems

Technical Scripter 2022

What is Firmware?

Last Updated: 04 January 2023

Firmware is a small software that is written to Hardware devices in non-volatile memory. Firmware software programs cannot be changed and they won't be erased when there i...read more

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Operating Systems

Technical Scripter 2022

Implementing Real-Time Operating Systems

Last Updated: 17 February 2023

Pre-requisites: RTOSA real-time operating system (RTOS) is a type of operating system that is designed to provide deterministic, timely processing of real-time events. To ...read more

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Operating Systems

Technical Scripter 2022

Tertiary Storage in Operating System

Last Updated: 27 February 2023

Data that is not commonly accessed and typically not required for daily use is stored in tertiary storage. Tertiary storage is often slower and less expensive than primary...read more

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Operating Systems

Technical Scripter 2022

Short Term Scheduler in Operating System

Last Updated: 28 January 2023

Pre-requisites: Process Schedulers in Operating SystemThe operating system's short-term scheduler, commonly referred to as a CPU scheduler, controls how the central proces...read more

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Technical Scripter

Operating Systems

Technical Scripter 2022

Difference Between QNX and VxWorks Operating System

Last Updated: 21 April 2023

QNX stands for QNX is Not Unix. QNX is a Unix-like Real Time Operating System, which is dedicated primarily to the field of embedded systems. QNX was launched in 1982. Bla...read more

Operating Systems

Difference Between

What is a Master File Table?

Last Updated: 14 February 2023

Pre-requisites: File Systems in Operating SystemThe Master File Table (MFT) is a system file in the NTFS file system (having the name $MFT) that stores metadata informatio...read more

Operating Systems

Device Controllers in Operating System

Last Updated: 27 February 2023

Pre-requisites: DMAIn computer systems, I/O devices do not usually communicate with the operating system. The operating system manages their task with the help of one inte...read more

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Operating Systems

What is Flash Memory?

Last Updated: 16 July 2023

Flash memory is secondary memory and so it is not volatile which means it persists the data even if there is not an electrical supply provided. This flash memory works on ...read more

Operating Systems

Operating Systems-Memory Management

Multitasking Operating System

Last Updated: 30 April 2025

Multitasking in operating systems allows multiple tasks to run in an concurrent (or interleaved) manner, enhancing system performance. Multiprogramming ensures that the CP...read more

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Operating Systems

Error Handling in Operating System

Last Updated: 06 October 2023

An operating system is defined as an interface between the computer system and its users. Once the operating system is loaded into the computer system through the boot pro...read more

Operating Systems

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Architecture of Linux Operating System

Last Updated: 31 May 2025

Linux is an open-source UNIX-based operating system. The main component of the Linux operating system is Linux kernel. It is developed to provide low-cost or free operatin...read more

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