Scheduling Algorithms

When managing processes in an operating system, choosing the right scheduling algorithm is crucial. This article explores well-known algorithms including FCFS, SJF, priority scheduling, and RR scheduling. Each algorithm has unique features, such as FCFS’s FIFO queue, SJF’s focus on minimizing waiting time, and priority scheduling’s potential for indefinite blocking. RR scheduling ensures fair CPU time distribution through time slices.

Scheduling in OS

Schedulers are vital in determining process execution. The Job Queue stores submitted processes, while the Ready Queue houses processes ready for execution. The Device Queue lists blocked processes. Long-term Scheduler admits processes from the Job Queue, while Short-term Scheduler selects processes for immediate execution. The Medium-term Scheduler manages swapped-out processes.

The Shell – Terminal

The shell, acting as a command language interpreter, serves as the interface between the user and the system. It relies on the system kernel to execute programs and finds its home within a terminal emulator, like “bash,” enabling various operations and scripting capabilities in the UNIX and Linux world.

Burning the Bootloader On Arduino

This article covers the issue of a corrupted Arduino bootloader and outlines a solution using another Arduino to revive the faulty board through bootloader burning. It provides a concise explanation of the bootloader’s function and the process to fix the corrupted bootloader. The step-by-step guide includes connecting the two Arduinos and burning the bootloader using the Arduino IDE.

Soft, Hard, Firm Real-Time Systems. What’s the difference?

Real-time systems are designed to respond within a set timeframe. They are categorized as soft, hard, or firm real-time systems. Soft systems prioritize accuracy and can tolerate occasional delays, seen in social media apps. Hard systems have strict deadlines and are critical for safety, such as air traffic control. Firm systems combine aspects of both.

Few GDB Debugging Commands

This guide introduces essential GDB debugger commands: break (set breakpoint), run (start execution), next (execute next line), step (execute and stop in function), continue (resume execution), print (print variable value), backtrace (display call stack), watch (set watchpoint), info (display program info), quit (exit debugger), and more.

Auto Backup Files in Linux

This article provides a step-by-step guide on creating an automatic backup command for files in Linux. It covers checking directory existence, creating a file, adding commands, testing the backup, and additional notes on updating and file management within Vim. The process ensures a backup file is created for every new file opened.

𝐖𝐡𝐚𝐭 𝐝𝐨 𝐲𝐨𝐮 𝐦𝐞𝐚𝐧 𝐛𝐲 𝐕𝐞𝐫𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐕𝐚𝐥𝐢𝐝𝐚𝐭𝐢𝐨𝐧?

Verification and Validation (V&V) are critical activities in development. Verification ensures design compliance with requirements, while validation ensures the right system is built. These processes occur at different stages, with validation focusing on early development and verification on post-design production. Understanding these fundamental concepts is essential before exploring the involved techniques.

Unique Cosmic BlackHoles (Part-1)

Universe is a mysterious place with both beautiful and monstrous cosmic entities. One of the terrific entities is the blackhole. An enigmatic object where not even the light can escape its gravitational pull. As similar their properties are anywhere in this universe, their characteristics do defer. From birth to death, everything that a blackhole does […]

Initialization of OS in MicroC/OS-II

One of the key strengths of 𝐮𝐂/𝐎𝐒-𝐈𝐈 lies in its lightweight and independent task model. Each task executes specific functions or operations, allowing for efficient task switching and context switching. Let’s start by unraveling the software file structure, which sets the foundation for a deep dive into the workings of 𝐎𝐒_𝐈𝐧𝐢𝐭(). We’ll delve into the […]