This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts - 10th Edition" regarding CPU scheduling. It covers common CPU scheduling algorithms like first-come first-served, shortest job first, round robin, and priority scheduling. It also discusses scheduling criteria to evaluate algorithms and challenges like starvation for low priority processes. Multilevel queues, multilevel feedback queues, and thread scheduling concepts are presented. The objectives of describing various scheduling techniques, assessing them, and applying modeling and simulations to evaluate performance are outlined.
Operating System - CPU Scheduling IntroductionJimmyWilson26
This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts - 8th Edition" regarding CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. It describes various scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). It also covers scheduling criteria for optimization and examples of applying the different algorithms.
This document discusses CPU scheduling algorithms in operating systems. It begins with an outline of the chapter topics, including basic concepts, scheduling criteria, algorithms like first-come first-served (FCFS), shortest job first (SJF), and round robin (RR). It then examines these algorithms in more detail through examples, discussing how to estimate process burst times, preemptive vs non-preemptive approaches, and optimization criteria like wait time. Real-time scheduling and examples from Windows, Linux and Solaris are also mentioned.
This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts - 8th Edition" regarding CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. Various scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling, and round robin. Criteria for evaluating scheduling algorithms include CPU utilization, throughput, turnaround time, waiting time, and response time. Ready queues can be partitioned into multiple levels with different scheduling policies to implement multilevel queue and feedback queue scheduling.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling algorithms such as first-come first-served, shortest job first, priority scheduling, and round robin. It covers scheduling criteria like CPU utilization, throughput, and waiting time. It also describes techniques like multilevel feedback queues that allow processes to move between queues with different scheduling algorithms.
This document summarizes key concepts from Chapter 6 of the 9th edition of Operating System Concepts by Silberschatz, Galvin and Gagne, which covers CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. It describes scheduling criteria like CPU utilization, throughput, turnaround time and waiting time. It then explains common scheduling algorithms like first-come first-served, shortest job first, priority scheduling and round robin. It also discusses thread scheduling, multilevel queues, and multilevel feedback queues. The objectives are to introduce CPU scheduling, describe various algorithms, and discuss criteria for selecting algorithms.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling algorithms such as first-come first-served, shortest job first, priority scheduling, and round robin. It covers scheduling criteria like CPU utilization, throughput, turnaround time and waiting time. It also describes techniques like predicting next CPU burst times, aging priorities to prevent starvation, and using multilevel queues and feedback queues.
Various CPU Scheduling Algorithms in OS.ppttaricvilla
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It covers CPU scheduling, which is the basis for multiprogrammed operating systems. Various scheduling algorithms like FCFS, SJF, priority scheduling and round robin are described. Evaluation criteria for selecting scheduling algorithms like CPU utilization, throughput, turnaround time and waiting time are discussed.
Operating System - CPU Scheduling IntroductionJimmyWilson26
This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts - 8th Edition" regarding CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. It describes various scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). It also covers scheduling criteria for optimization and examples of applying the different algorithms.
This document discusses CPU scheduling algorithms in operating systems. It begins with an outline of the chapter topics, including basic concepts, scheduling criteria, algorithms like first-come first-served (FCFS), shortest job first (SJF), and round robin (RR). It then examines these algorithms in more detail through examples, discussing how to estimate process burst times, preemptive vs non-preemptive approaches, and optimization criteria like wait time. Real-time scheduling and examples from Windows, Linux and Solaris are also mentioned.
This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts - 8th Edition" regarding CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. Various scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling, and round robin. Criteria for evaluating scheduling algorithms include CPU utilization, throughput, turnaround time, waiting time, and response time. Ready queues can be partitioned into multiple levels with different scheduling policies to implement multilevel queue and feedback queue scheduling.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling algorithms such as first-come first-served, shortest job first, priority scheduling, and round robin. It covers scheduling criteria like CPU utilization, throughput, and waiting time. It also describes techniques like multilevel feedback queues that allow processes to move between queues with different scheduling algorithms.
This document summarizes key concepts from Chapter 6 of the 9th edition of Operating System Concepts by Silberschatz, Galvin and Gagne, which covers CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. It describes scheduling criteria like CPU utilization, throughput, turnaround time and waiting time. It then explains common scheduling algorithms like first-come first-served, shortest job first, priority scheduling and round robin. It also discusses thread scheduling, multilevel queues, and multilevel feedback queues. The objectives are to introduce CPU scheduling, describe various algorithms, and discuss criteria for selecting algorithms.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling algorithms such as first-come first-served, shortest job first, priority scheduling, and round robin. It covers scheduling criteria like CPU utilization, throughput, turnaround time and waiting time. It also describes techniques like predicting next CPU burst times, aging priorities to prevent starvation, and using multilevel queues and feedback queues.
Various CPU Scheduling Algorithms in OS.ppttaricvilla
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It covers CPU scheduling, which is the basis for multiprogrammed operating systems. Various scheduling algorithms like FCFS, SJF, priority scheduling and round robin are described. Evaluation criteria for selecting scheduling algorithms like CPU utilization, throughput, turnaround time and waiting time are discussed.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling, which is the basis for multiprogrammed operating systems. Various CPU scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling and round robin. Evaluation criteria for selecting a scheduling algorithm like CPU utilization, throughput, turnaround time and waiting time are also covered. The chapter examines scheduling in real systems and provides examples of scheduling algorithms.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling, which is the basis for multiprogrammed operating systems. Various CPU scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling and round robin. Evaluation criteria for selecting a scheduling algorithm like CPU utilization, throughput, turnaround time and waiting time are also covered. The chapter examines scheduling in multi-processor and real-time systems as well as thread scheduling approaches.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling, which is the basis for multiprogrammed operating systems. Various CPU scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling and round robin. Evaluation criteria for selecting a scheduling algorithm like CPU utilization, throughput, turnaround time and waiting time are also covered. The chapter examines scheduling in multi-processor and real-time systems as well as thread scheduling approaches.
This document discusses CPU scheduling in operating systems. It introduces CPU scheduling as the basis for multiprogrammed operating systems. Various scheduling algorithms are described such as first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). Evaluation criteria for scheduling algorithms like CPU utilization, throughput, turnaround time, and waiting time are also presented. Multilevel queue and multilevel feedback queue scheduling are discussed as ways to improve performance.
The document summarizes key concepts from Chapter 6 of Operating System Concepts - 9th Edition about CPU scheduling. It discusses the goals of CPU scheduling, including maximizing CPU utilization and throughput. It describes common scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin. It also covers more advanced techniques such as multilevel queue scheduling and multilevel feedback queue scheduling. Evaluation methods like deterministic modeling are presented to analyze and compare the performance of different scheduling algorithms.
This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts Essentials". It discusses CPU scheduling, which selects processes to run on the CPU. Various scheduling algorithms are described, including first-come first-served, shortest job first, priority scheduling, and round robin. Criteria for evaluating scheduling algorithms include CPU utilization, throughput, turnaround time, waiting time and response time. Multilevel queue and feedback queue approaches are also summarized.
This document summarizes Chapter 5 from the textbook "Operating System Concepts - 8th Edition" by Silberschatz, Galvin and Gagne. The chapter introduces CPU scheduling algorithms which are important for multiprogrammed operating systems. It describes scheduling criteria like CPU utilization and waiting time. Specific algorithms covered include first-come first-served scheduling, shortest-job-first scheduling, priority scheduling, and round robin scheduling. Advanced scheduling techniques involving multiple queues and multiple processors are also discussed.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts Essentials" on CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. It describes scheduling criteria like CPU utilization, throughput, turnaround time and waiting time. It then explains common scheduling algorithms like First-Come First-Served, Shortest Job First, Priority Scheduling and Round Robin. It also covers advanced scheduling techniques such as multilevel queues and multilevel feedback queues.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts" related to CPU scheduling. It discusses basic scheduling concepts like multiprogramming and the CPU-I/O burst cycle. It then covers various scheduling algorithms like first-come first-served, shortest-job-first, priority scheduling, and round robin. The document also discusses optimization criteria, techniques for estimating future CPU bursts, multilevel queue scheduling, real-time scheduling, and evaluating scheduling algorithms.
This document summarizes key concepts related to CPU scheduling from Chapter 6 of the textbook "Operating System Concepts Essentials – 2nd Edition". It covers basic CPU scheduling concepts, different scheduling algorithms like FCFS, SJF, priority scheduling and round robin. It also discusses scheduling criteria, thread scheduling, multilevel queues, and the pthread scheduling API. The goal is to introduce CPU scheduling techniques used in modern operating systems.
This document discusses CPU scheduling algorithms in operating systems. It begins with basic concepts of CPU scheduling and outlines scheduling criteria like throughput, turnaround time, waiting time and response time. It then explains common scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, round robin (RR) and describes examples of each. It also covers multilevel queue scheduling, thread scheduling, and real-time scheduling algorithms.
CPU Scheduling is the process through which we can find the best way to check the shortest and fastest working. Different Algorithms are explained here in this chapter. First-come-first-servers, Shortest Job First, Shortest remaining time first,
Round Robin, Priority Scheduler.
cpu scheduling bassically tell us about the outer structure or the managemnet of the computer tha how it is done ,it bassically tell us about how our cpu is scheduled.
The document discusses CPU scheduling algorithms in operating systems. It covers basic scheduling concepts, criteria for evaluating algorithms, and examples of common algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). It also discusses more advanced topics like multilevel queue scheduling, real-time scheduling, thread scheduling, and scheduling on multiprocessor and multicore systems.
This document discusses CPU scheduling in operating systems. It covers basic scheduling concepts like processes alternating between CPU and I/O bursts. It then discusses scheduling criteria like response time and algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin. It also covers more advanced topics like multilevel queue scheduling, multiple processor scheduling, and real-time scheduling. Evaluation methods for scheduling algorithms like simulation and queueing models are also mentioned.
This document provides an overview of CPU scheduling concepts and algorithms. It discusses key scheduling concepts like processes, ready queues, context switching and dispatch latency. It then covers common scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). The document also discusses more advanced scheduling techniques such as multilevel queue scheduling, multilevel feedback queues, multiple processor scheduling, real-time scheduling and thread scheduling. Finally, it provides examples of scheduling in specific operating systems like Solaris, Windows and Linux.
Senthilkanth,MCA..
The following ppt's full topic covers Operating System for BSc CS, BCA, MSc CS, MCA students..
1.Introduction
2.OS Structures
3.Process
4.Threads
5.CPU Scheduling
6.Process Synchronization
7.Dead Locks
8.Memory Management
9.Virtual Memory
10.File system Interface
11.File system implementation
12.Mass Storage System
13.IO Systems
14.Protection
15.Security
16.Distributed System Structure
17.Distributed File System
18.Distributed Co Ordination
19.Real Time System
20.Multimedia Systems
21.Linux
22.Windows
This document discusses CPU scheduling algorithms in operating systems. It begins with an overview of basic CPU scheduling concepts like multiprogramming and context switching. It then discusses important scheduling criteria like CPU utilization, throughput, response time, waiting time and turnaround time. Common single-processor scheduling algorithms are introduced, including First Come First Served (FCFS), Shortest Job First (SJF), priority scheduling, and round robin. Examples are provided to illustrate how each algorithm works. Key scheduling terms are also defined.
The document discusses command line interpreters (CLI), which act as an interface between users and operating systems. CLIs receive instructions from users and transfer them to the OS. Some common CLIs are based on text, like those used in MS-DOS, Unix shells, and Linux, while others like those in Mac, Android, and Windows are graphical user interface (GUI) based. Commands received by the CLI trigger the OS to perform tasks like process management, input/output handling, and networking.
This document discusses file management systems and concepts from the 10th edition of the textbook "Operating System Concepts" by Silberschatz, Galvin and Gagne. It covers file concepts, structures, attributes and operations. It describes different file access methods like sequential, direct and indexed access. It also discusses different file allocation methods including contiguous, linked, FAT and indexed allocation and provides examples. The document is intended to teach operating system concepts related to file management.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling, which is the basis for multiprogrammed operating systems. Various CPU scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling and round robin. Evaluation criteria for selecting a scheduling algorithm like CPU utilization, throughput, turnaround time and waiting time are also covered. The chapter examines scheduling in real systems and provides examples of scheduling algorithms.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling, which is the basis for multiprogrammed operating systems. Various CPU scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling and round robin. Evaluation criteria for selecting a scheduling algorithm like CPU utilization, throughput, turnaround time and waiting time are also covered. The chapter examines scheduling in multi-processor and real-time systems as well as thread scheduling approaches.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts - 9th Edition" by Silberschatz, Galvin and Gagne. It discusses CPU scheduling, which is the basis for multiprogrammed operating systems. Various CPU scheduling algorithms are described such as first-come first-served, shortest job first, priority scheduling and round robin. Evaluation criteria for selecting a scheduling algorithm like CPU utilization, throughput, turnaround time and waiting time are also covered. The chapter examines scheduling in multi-processor and real-time systems as well as thread scheduling approaches.
This document discusses CPU scheduling in operating systems. It introduces CPU scheduling as the basis for multiprogrammed operating systems. Various scheduling algorithms are described such as first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). Evaluation criteria for scheduling algorithms like CPU utilization, throughput, turnaround time, and waiting time are also presented. Multilevel queue and multilevel feedback queue scheduling are discussed as ways to improve performance.
The document summarizes key concepts from Chapter 6 of Operating System Concepts - 9th Edition about CPU scheduling. It discusses the goals of CPU scheduling, including maximizing CPU utilization and throughput. It describes common scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin. It also covers more advanced techniques such as multilevel queue scheduling and multilevel feedback queue scheduling. Evaluation methods like deterministic modeling are presented to analyze and compare the performance of different scheduling algorithms.
This document summarizes key concepts from Chapter 5 of the textbook "Operating System Concepts Essentials". It discusses CPU scheduling, which selects processes to run on the CPU. Various scheduling algorithms are described, including first-come first-served, shortest job first, priority scheduling, and round robin. Criteria for evaluating scheduling algorithms include CPU utilization, throughput, turnaround time, waiting time and response time. Multilevel queue and feedback queue approaches are also summarized.
This document summarizes Chapter 5 from the textbook "Operating System Concepts - 8th Edition" by Silberschatz, Galvin and Gagne. The chapter introduces CPU scheduling algorithms which are important for multiprogrammed operating systems. It describes scheduling criteria like CPU utilization and waiting time. Specific algorithms covered include first-come first-served scheduling, shortest-job-first scheduling, priority scheduling, and round robin scheduling. Advanced scheduling techniques involving multiple queues and multiple processors are also discussed.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts Essentials" on CPU scheduling. It introduces CPU scheduling as the basis for multiprogrammed operating systems. It describes scheduling criteria like CPU utilization, throughput, turnaround time and waiting time. It then explains common scheduling algorithms like First-Come First-Served, Shortest Job First, Priority Scheduling and Round Robin. It also covers advanced scheduling techniques such as multilevel queues and multilevel feedback queues.
This document summarizes key concepts from Chapter 6 of the textbook "Operating System Concepts" related to CPU scheduling. It discusses basic scheduling concepts like multiprogramming and the CPU-I/O burst cycle. It then covers various scheduling algorithms like first-come first-served, shortest-job-first, priority scheduling, and round robin. The document also discusses optimization criteria, techniques for estimating future CPU bursts, multilevel queue scheduling, real-time scheduling, and evaluating scheduling algorithms.
This document summarizes key concepts related to CPU scheduling from Chapter 6 of the textbook "Operating System Concepts Essentials – 2nd Edition". It covers basic CPU scheduling concepts, different scheduling algorithms like FCFS, SJF, priority scheduling and round robin. It also discusses scheduling criteria, thread scheduling, multilevel queues, and the pthread scheduling API. The goal is to introduce CPU scheduling techniques used in modern operating systems.
This document discusses CPU scheduling algorithms in operating systems. It begins with basic concepts of CPU scheduling and outlines scheduling criteria like throughput, turnaround time, waiting time and response time. It then explains common scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, round robin (RR) and describes examples of each. It also covers multilevel queue scheduling, thread scheduling, and real-time scheduling algorithms.
CPU Scheduling is the process through which we can find the best way to check the shortest and fastest working. Different Algorithms are explained here in this chapter. First-come-first-servers, Shortest Job First, Shortest remaining time first,
Round Robin, Priority Scheduler.
cpu scheduling bassically tell us about the outer structure or the managemnet of the computer tha how it is done ,it bassically tell us about how our cpu is scheduled.
The document discusses CPU scheduling algorithms in operating systems. It covers basic scheduling concepts, criteria for evaluating algorithms, and examples of common algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). It also discusses more advanced topics like multilevel queue scheduling, real-time scheduling, thread scheduling, and scheduling on multiprocessor and multicore systems.
This document discusses CPU scheduling in operating systems. It covers basic scheduling concepts like processes alternating between CPU and I/O bursts. It then discusses scheduling criteria like response time and algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin. It also covers more advanced topics like multilevel queue scheduling, multiple processor scheduling, and real-time scheduling. Evaluation methods for scheduling algorithms like simulation and queueing models are also mentioned.
This document provides an overview of CPU scheduling concepts and algorithms. It discusses key scheduling concepts like processes, ready queues, context switching and dispatch latency. It then covers common scheduling algorithms like first-come first-served (FCFS), shortest job first (SJF), priority scheduling, and round robin (RR). The document also discusses more advanced scheduling techniques such as multilevel queue scheduling, multilevel feedback queues, multiple processor scheduling, real-time scheduling and thread scheduling. Finally, it provides examples of scheduling in specific operating systems like Solaris, Windows and Linux.
Senthilkanth,MCA..
The following ppt's full topic covers Operating System for BSc CS, BCA, MSc CS, MCA students..
1.Introduction
2.OS Structures
3.Process
4.Threads
5.CPU Scheduling
6.Process Synchronization
7.Dead Locks
8.Memory Management
9.Virtual Memory
10.File system Interface
11.File system implementation
12.Mass Storage System
13.IO Systems
14.Protection
15.Security
16.Distributed System Structure
17.Distributed File System
18.Distributed Co Ordination
19.Real Time System
20.Multimedia Systems
21.Linux
22.Windows
This document discusses CPU scheduling algorithms in operating systems. It begins with an overview of basic CPU scheduling concepts like multiprogramming and context switching. It then discusses important scheduling criteria like CPU utilization, throughput, response time, waiting time and turnaround time. Common single-processor scheduling algorithms are introduced, including First Come First Served (FCFS), Shortest Job First (SJF), priority scheduling, and round robin. Examples are provided to illustrate how each algorithm works. Key scheduling terms are also defined.
The document discusses command line interpreters (CLI), which act as an interface between users and operating systems. CLIs receive instructions from users and transfer them to the OS. Some common CLIs are based on text, like those used in MS-DOS, Unix shells, and Linux, while others like those in Mac, Android, and Windows are graphical user interface (GUI) based. Commands received by the CLI trigger the OS to perform tasks like process management, input/output handling, and networking.
This document discusses file management systems and concepts from the 10th edition of the textbook "Operating System Concepts" by Silberschatz, Galvin and Gagne. It covers file concepts, structures, attributes and operations. It describes different file access methods like sequential, direct and indexed access. It also discusses different file allocation methods including contiguous, linked, FAT and indexed allocation and provides examples. The document is intended to teach operating system concepts related to file management.
This document discusses network devices and disk storage management. It begins by reviewing the desire for standard interfaces to different types of devices like block devices, character devices, and network devices. It then discusses how a processor communicates with devices via controllers that contain registers that can be read from and written to using I/O instructions or memory mapping. Finally, it defines seek time and rotational latency for disk storage, which relate to the physical movement of read/write heads on a disk.
This document discusses process management in operating systems. It covers topics such as what a process is, process states, process scheduling, and interprocess communication. A key point is that the operating system must manage resources and synchronize processes to prevent race conditions and deadlocks. Process management involves creating, scheduling, and terminating processes, as well as techniques for process synchronization like semaphores.
This document introduces the authors and contributors of the textbook "Operating Systems: Concepts with Java". It provides brief biographies of Abraham Silberschatz, Peter Baer Galvin, and Greg Gagne, describing their academic and professional backgrounds. It then summarizes the organization and goals of the textbook, which aims to clearly describe fundamental operating systems concepts through examples from commercial systems like Solaris, Linux, Windows, and Mac OS X. The textbook is organized into nine parts covering topics like processes, memory management, storage, protection, and distributed systems.
MS DOS is an operating system created by Microsoft that uses a layered structure. Each layer has a specific functionality, and changes to one layer do not affect the others. This makes the system easier to create, maintain, and update. However, the boundaries between layers in MS DOS are not sharply defined, and specifications sometimes overlap between layers.
This document discusses disk management and file systems. It begins by reviewing standard interfaces for block devices like disk drives that access and transfer blocks of data, as well as character devices like keyboards that transfer single characters. It then discusses how the CPU communicates with devices via memory-mapped I/O or I/O instructions. Device drivers allow standard access to different devices. Disk performance depends on queueing time in software and hardware service times including seek time, rotational latency, and transfer time. File systems structure data on disks using directories and caching.
The document provides an introduction to operating systems (OS). It discusses key topics like:
- What is an OS and its main functions like executing programs, making hardware usage efficient, and providing a convenient interface for users.
- Popular OS types like UNIX, Windows, and Linux.
- Basic concepts like the structure of computer systems with layered access to resources, and the roles of components like the CPU, RAM, and kernel.
- How an OS manages resources through functions like process management, memory management, file management, and I/O management.
- A brief history of OS development from early single-task batch systems to modern graphical, distributed, and real-time OSes.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.