This document provides an overview of virtual memory concepts including segmentation, paging, virtual addresses, linear addresses, physical addresses, page tables, and page directories. It also describes initializing memory management structures like pages and page tables during boot up. Finally, it outlines interfaces for key virtual memory functions like walking the page table, inserting/removing pages, and looking up the physical page for a virtual address.
The document discusses efficient processing of complex data through BFS graph traversal. It describes constructing a graph from a data file by adding nodes and edges. It then performs BFS traversal on the graph, maintaining a queue of nodes to visit and propagating information to discover paths between nodes.
This document provides technical details about PostgreSQL WAL (Write Ahead Log) buffers. It describes the structure and purpose of WAL segments, WAL records, and their components. It also explains how the WAL is used to safely recover transactions after a server crash by replaying the log.
This document contains a summary of a presentation on Stage3D and AGAL (Abstract Graphics Assembly Language) in Flash. It discusses what Stage3D is and its support for different platforms. It provides an introduction to 3D graphics principles and AGAL. It includes examples of vertex and fragment shaders to create effects like solid colors, gradients, rotation, textures, lighting, and animation. Extrusion and lathe techniques are also briefly mentioned.
MySQLinsanity! This document provides an overview of Stanley Huang's MySQL performance tuning experience and expertise. It begins with introductions and background on Stanley Huang. It then discusses the typical phases of MySQL performance tuning projects, including SQL tuning and RDBMS tuning. Specific tips are provided around topics like slow query logging, index usage, partitioning, and server configuration. The document concludes with an invitation for questions.
This document provides instructions for various exercises to be completed as part of an Operating Systems lab manual. It includes exercises on system calls like fork, exec, wait; I/O system calls; simulating commands like ls and grep; scheduling algorithms like FCFS, SJF, priority, round robin; inter-process communication using shared memory, pipes, message queues; the producer-consumer problem using semaphores; and memory management schemes including paging, segmentation, and file allocation techniques. Example code is provided for implementing different memory management algorithms using concepts like free space list, allocated space list, and block merging.
GUN Make is a tool used to automate the building of executables from source code. It determines which files need to be recompiled based on timestamps and builds the necessary targets. Rules define dependencies and commands to transform files. Variables, macros, conditionals, and functions allow for complex logic and reuse in the makefile. Includes allow splitting makefiles into modular pieces.
The document discusses efficient processing of complex data through BFS graph traversal. It describes constructing a graph from a data file by adding nodes and edges. It then performs BFS traversal on the graph, maintaining a queue of nodes to visit and propagating information to discover paths between nodes.
This document provides technical details about PostgreSQL WAL (Write Ahead Log) buffers. It describes the structure and purpose of WAL segments, WAL records, and their components. It also explains how the WAL is used to safely recover transactions after a server crash by replaying the log.
This document contains a summary of a presentation on Stage3D and AGAL (Abstract Graphics Assembly Language) in Flash. It discusses what Stage3D is and its support for different platforms. It provides an introduction to 3D graphics principles and AGAL. It includes examples of vertex and fragment shaders to create effects like solid colors, gradients, rotation, textures, lighting, and animation. Extrusion and lathe techniques are also briefly mentioned.
MySQLinsanity! This document provides an overview of Stanley Huang's MySQL performance tuning experience and expertise. It begins with introductions and background on Stanley Huang. It then discusses the typical phases of MySQL performance tuning projects, including SQL tuning and RDBMS tuning. Specific tips are provided around topics like slow query logging, index usage, partitioning, and server configuration. The document concludes with an invitation for questions.
This document provides instructions for various exercises to be completed as part of an Operating Systems lab manual. It includes exercises on system calls like fork, exec, wait; I/O system calls; simulating commands like ls and grep; scheduling algorithms like FCFS, SJF, priority, round robin; inter-process communication using shared memory, pipes, message queues; the producer-consumer problem using semaphores; and memory management schemes including paging, segmentation, and file allocation techniques. Example code is provided for implementing different memory management algorithms using concepts like free space list, allocated space list, and block merging.
GUN Make is a tool used to automate the building of executables from source code. It determines which files need to be recompiled based on timestamps and builds the necessary targets. Rules define dependencies and commands to transform files. Variables, macros, conditionals, and functions allow for complex logic and reuse in the makefile. Includes allow splitting makefiles into modular pieces.
The document describes four different CPU scheduling algorithms: First Come First Serve (FCFS), Shortest Job First (preemptive and non-preemptive), Priority scheduling (non-preemptive), and Round Robin. For each algorithm, pseudocode is provided to simulate the scheduling of processes and calculate metrics like waiting time and turnaround time. The FCFS algorithm calculates these metrics in a straightforward manner based on arrival time and burst time of each process. Shortest Job First simulates sorting processes by burst time and calculating wait times and turnaround times accordingly. Priority scheduling first sorts by priority then calculates metrics. Round Robin simulates time slicing by allocating a time quantum to each process in turn.
Human:
This document provides information about an OS lab manual, including definitions of operating systems, computer system components, Windows 2000 architecture and components, and other topics like LDAP, DNS, and Active Directory. Specifically, it defines operating systems, their goals, and components. It describes the Windows 2000 architecture in layers and subsystems. It also explains the Windows 2000 kernel, executive, and subsystems like object manager, virtual memory manager, and process manager.
Operating System Tutoring #1.
by Aerosystem Software Lab. @ Korea Aerospace Univ.
This is tutoring slide for the students who were not understood well about operating system or fundamentals of computer engineering. This slide may has some misconceptions or inappropriate examples. Any feedback is welcomed.
운영체제 튜터링 #1.
- 항공 소프트웨어 연구실 @ 한국항공대학교
본 슬라이드는 튜터링 강의자료로, 운영체제에 대한 개념이나 컴퓨터공학 기초지식이 부족한 학생들을 기준으로 작성하였습니다. 본 슬라이드에 일부 잘못된 개념이나 부적절한 예시가 포함되어 있을 수도 있습니다. 피드백 환영합니다.
This document contains 8 C programming code examples demonstrating various scheduling algorithms:
1. First Come First Serve scheduling
2. Non-preemptive Shortest Job First scheduling
3. Round Robin scheduling
4. Priority scheduling
5. Banker's algorithm for deadlock avoidance
6. Producer-consumer problem synchronization
7. Dekker's algorithm for mutual exclusion
Each program example includes comments explaining the algorithm and includes functions to calculate waiting times, turnaround times, and other metrics.
This document contains programs and algorithms for simulating different CPU scheduling algorithms like FCFS, SJF, Priority and Round Robin. It also contains a program for implementing the Producer-Consumer problem using semaphores and an algorithm for implementing optimal page replacement.
This document contains the code for simulating different CPU scheduling algorithms including FCFS, SJF, and priority scheduling. It includes the code to input process details like name, arrival time, and burst time. It then calculates start time, waiting time, turnaround time, and response time for each process. The average waiting time and average turnaround time are also calculated at the end for each algorithm.
This document outlines the workflow process and structure for encoding video and audio files using FFmpeg. It provides a 10 step standard operating procedure (SOP) for encoding files that includes: 1) including headers, 2) linking libraries, 3) setting up output format, 4) preparing codec structures, 5) setting up video codec, 6) setting up audio codec, 7) opening file descriptor and writing header, 8) writing data packets, 9) closing file descriptor, and 10) calculating presentation timestamp (PTS) values.
The document provides an overview of SSL and OpenSSL. It discusses generating keys and certificates, setting up SSL contexts, creating secure connections, reading/writing data, and handling errors. It also provides code snippets for an echo client and server. The echo server loads a certificate, sets up a listening BIO, accepts connections, and performs handshakes. The handshake process involves a client sending a "hello" message and the server responding with its own parameters to establish encryption.
The document describes designing an online course reservation system using Rational Rose software. The system would allow students to register for courses, view course catalogs, and professors to sign up to teach courses and record grades. It would have four modules: student login, student registration, course registration, and course inquiry. The system was implemented using Visual Basic 6.0, with Access as the backend database. UML diagrams like use case, class, sequence, and deployment diagrams were created to model and design the system. The project was carried out sequentially and resulted in an efficient online course reservation system.
The document summarizes the phases of the software development life cycle (SDLC) and provides details about system requirement specification for an army management system project. It describes the typical phases in SDLC models such as waterfall, spiral, agile etc. It then covers the specific phases in more detail - preliminary analysis, system analysis, design, development, integration and testing, acceptance and deployment, maintenance. Lastly, it discusses system requirement specification, including UML notations, diagrams to be used and provides a brief overview of class diagrams.
This document provides an overview of IPv6 functionality and describes how to build an IPv6 environment. It outlines IPv6 addressing formats including unicast, multicast, anycast, and global unicast addresses. It also explains stateless and stateful autoconfiguration methods for IPv6 hosts to obtain addresses and configure themselves on the network. The document concludes by describing how to set up routers and hosts in IPv6 networks on Linux systems.
This program implements the First Come First Serve (FCFS) CPU scheduling algorithm in C. It takes the arrival time and service time of each process as input, calculates the start time, finish time, waiting time and turnaround time of each process, and outputs these values along with the average waiting time and average turnaround time. The processes are scheduled in the order of their arrival, with no preemption, following the FCFS principle.
The document is a slide presentation on UML modeling and profiling from a software engineering course. It introduces UML and the concepts of metamodeling. It explains that UML is used to specify, visualize, construct and document software system artifacts. The presentation then outlines the typical steps in UML modeling: 1) modeling use cases, 2) modeling system structure with classes and components, and 3) modeling deployment to hardware nodes.
This document provides an overview and instructions for basic commands and operations in the UNIX operating system. It discusses the kernel and shell structure of UNIX, the file hierarchy, and common commands for file manipulation, processing, and navigation. It also provides a tutorial on the vi text editor, including instructions for basic cursor movement, text insertion, changing, and deletion.
The document provides an overview of the Unified Modeling Language (UML) including its key concepts, terms, and diagram types. It discusses object-orientation, use cases, class diagrams, behavioral modeling using sequence, collaboration, state chart and activity diagrams. It also covers implementation using component and deployment diagrams. The main UML diagram types are use case, class, sequence, state chart, activity, component and deployment diagrams.
The document discusses memory reference instructions in a processor. It explains that bits 12-14 in the instruction register determine the memory reference instruction type, which can be AND to AC, ADD to AC, LDA, STA, BUN, BSA, or ISZ. It then describes the operation of each instruction type, including which decoder line is activated and the timing signals used to access memory and update registers.
MATLAB programs Power System Simulation lab (Electrical Engineer)Mathankumar S
The document contains MATLAB code for calculating line constants (inductance L and capacitance C) for overhead transmission lines with different configurations (single-circuit, single-circuit with multiple subconductors, and double-circuit). It requests user input of various line parameters and geometric mean distances and then calculates L and C values. Additional code calculates the network bus admittance matrix and transmission line losses.
Qualitative research, lab report overview, and review of lectures 1 to 7James Neill
This lecture introduces qualitative research and qualitative analysis, overviews the lab report tasks, and summarises Lectures 1 to 7. See also http://ucspace.canberra.edu.au/pages/viewpage.action?pageId=57409703
POWER SYSTEM SIMULATION - 2 LAB MANUAL (ELECTRICAL ENGINEERING - POWER SYSTEMS) Mathankumar S
This document provides an overview of small signal stability analysis of a single machine infinite bus (SMIB) power system. It defines small signal stability and describes how small disturbances can cause non-oscillatory or oscillatory instability. The swing equation and linearised swing equation are presented, which model the rotor motion and form the basis for small signal stability analysis. The linearised equations are used to derive the characteristic equation and determine the system's damping ratio and natural frequency of oscillation from the roots. The objectives are to understand SMIB system modelling, examine small signal stability through simulation, and obtain parameters like damping ratio from the linearised model.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
The document describes four different CPU scheduling algorithms: First Come First Serve (FCFS), Shortest Job First (preemptive and non-preemptive), Priority scheduling (non-preemptive), and Round Robin. For each algorithm, pseudocode is provided to simulate the scheduling of processes and calculate metrics like waiting time and turnaround time. The FCFS algorithm calculates these metrics in a straightforward manner based on arrival time and burst time of each process. Shortest Job First simulates sorting processes by burst time and calculating wait times and turnaround times accordingly. Priority scheduling first sorts by priority then calculates metrics. Round Robin simulates time slicing by allocating a time quantum to each process in turn.
Human:
This document provides information about an OS lab manual, including definitions of operating systems, computer system components, Windows 2000 architecture and components, and other topics like LDAP, DNS, and Active Directory. Specifically, it defines operating systems, their goals, and components. It describes the Windows 2000 architecture in layers and subsystems. It also explains the Windows 2000 kernel, executive, and subsystems like object manager, virtual memory manager, and process manager.
Operating System Tutoring #1.
by Aerosystem Software Lab. @ Korea Aerospace Univ.
This is tutoring slide for the students who were not understood well about operating system or fundamentals of computer engineering. This slide may has some misconceptions or inappropriate examples. Any feedback is welcomed.
운영체제 튜터링 #1.
- 항공 소프트웨어 연구실 @ 한국항공대학교
본 슬라이드는 튜터링 강의자료로, 운영체제에 대한 개념이나 컴퓨터공학 기초지식이 부족한 학생들을 기준으로 작성하였습니다. 본 슬라이드에 일부 잘못된 개념이나 부적절한 예시가 포함되어 있을 수도 있습니다. 피드백 환영합니다.
This document contains 8 C programming code examples demonstrating various scheduling algorithms:
1. First Come First Serve scheduling
2. Non-preemptive Shortest Job First scheduling
3. Round Robin scheduling
4. Priority scheduling
5. Banker's algorithm for deadlock avoidance
6. Producer-consumer problem synchronization
7. Dekker's algorithm for mutual exclusion
Each program example includes comments explaining the algorithm and includes functions to calculate waiting times, turnaround times, and other metrics.
This document contains programs and algorithms for simulating different CPU scheduling algorithms like FCFS, SJF, Priority and Round Robin. It also contains a program for implementing the Producer-Consumer problem using semaphores and an algorithm for implementing optimal page replacement.
This document contains the code for simulating different CPU scheduling algorithms including FCFS, SJF, and priority scheduling. It includes the code to input process details like name, arrival time, and burst time. It then calculates start time, waiting time, turnaround time, and response time for each process. The average waiting time and average turnaround time are also calculated at the end for each algorithm.
This document outlines the workflow process and structure for encoding video and audio files using FFmpeg. It provides a 10 step standard operating procedure (SOP) for encoding files that includes: 1) including headers, 2) linking libraries, 3) setting up output format, 4) preparing codec structures, 5) setting up video codec, 6) setting up audio codec, 7) opening file descriptor and writing header, 8) writing data packets, 9) closing file descriptor, and 10) calculating presentation timestamp (PTS) values.
The document provides an overview of SSL and OpenSSL. It discusses generating keys and certificates, setting up SSL contexts, creating secure connections, reading/writing data, and handling errors. It also provides code snippets for an echo client and server. The echo server loads a certificate, sets up a listening BIO, accepts connections, and performs handshakes. The handshake process involves a client sending a "hello" message and the server responding with its own parameters to establish encryption.
The document describes designing an online course reservation system using Rational Rose software. The system would allow students to register for courses, view course catalogs, and professors to sign up to teach courses and record grades. It would have four modules: student login, student registration, course registration, and course inquiry. The system was implemented using Visual Basic 6.0, with Access as the backend database. UML diagrams like use case, class, sequence, and deployment diagrams were created to model and design the system. The project was carried out sequentially and resulted in an efficient online course reservation system.
The document summarizes the phases of the software development life cycle (SDLC) and provides details about system requirement specification for an army management system project. It describes the typical phases in SDLC models such as waterfall, spiral, agile etc. It then covers the specific phases in more detail - preliminary analysis, system analysis, design, development, integration and testing, acceptance and deployment, maintenance. Lastly, it discusses system requirement specification, including UML notations, diagrams to be used and provides a brief overview of class diagrams.
This document provides an overview of IPv6 functionality and describes how to build an IPv6 environment. It outlines IPv6 addressing formats including unicast, multicast, anycast, and global unicast addresses. It also explains stateless and stateful autoconfiguration methods for IPv6 hosts to obtain addresses and configure themselves on the network. The document concludes by describing how to set up routers and hosts in IPv6 networks on Linux systems.
This program implements the First Come First Serve (FCFS) CPU scheduling algorithm in C. It takes the arrival time and service time of each process as input, calculates the start time, finish time, waiting time and turnaround time of each process, and outputs these values along with the average waiting time and average turnaround time. The processes are scheduled in the order of their arrival, with no preemption, following the FCFS principle.
The document is a slide presentation on UML modeling and profiling from a software engineering course. It introduces UML and the concepts of metamodeling. It explains that UML is used to specify, visualize, construct and document software system artifacts. The presentation then outlines the typical steps in UML modeling: 1) modeling use cases, 2) modeling system structure with classes and components, and 3) modeling deployment to hardware nodes.
This document provides an overview and instructions for basic commands and operations in the UNIX operating system. It discusses the kernel and shell structure of UNIX, the file hierarchy, and common commands for file manipulation, processing, and navigation. It also provides a tutorial on the vi text editor, including instructions for basic cursor movement, text insertion, changing, and deletion.
The document provides an overview of the Unified Modeling Language (UML) including its key concepts, terms, and diagram types. It discusses object-orientation, use cases, class diagrams, behavioral modeling using sequence, collaboration, state chart and activity diagrams. It also covers implementation using component and deployment diagrams. The main UML diagram types are use case, class, sequence, state chart, activity, component and deployment diagrams.
The document discusses memory reference instructions in a processor. It explains that bits 12-14 in the instruction register determine the memory reference instruction type, which can be AND to AC, ADD to AC, LDA, STA, BUN, BSA, or ISZ. It then describes the operation of each instruction type, including which decoder line is activated and the timing signals used to access memory and update registers.
MATLAB programs Power System Simulation lab (Electrical Engineer)Mathankumar S
The document contains MATLAB code for calculating line constants (inductance L and capacitance C) for overhead transmission lines with different configurations (single-circuit, single-circuit with multiple subconductors, and double-circuit). It requests user input of various line parameters and geometric mean distances and then calculates L and C values. Additional code calculates the network bus admittance matrix and transmission line losses.
Qualitative research, lab report overview, and review of lectures 1 to 7James Neill
This lecture introduces qualitative research and qualitative analysis, overviews the lab report tasks, and summarises Lectures 1 to 7. See also http://ucspace.canberra.edu.au/pages/viewpage.action?pageId=57409703
POWER SYSTEM SIMULATION - 2 LAB MANUAL (ELECTRICAL ENGINEERING - POWER SYSTEMS) Mathankumar S
This document provides an overview of small signal stability analysis of a single machine infinite bus (SMIB) power system. It defines small signal stability and describes how small disturbances can cause non-oscillatory or oscillatory instability. The swing equation and linearised swing equation are presented, which model the rotor motion and form the basis for small signal stability analysis. The linearised equations are used to derive the characteristic equation and determine the system's damping ratio and natural frequency of oscillation from the roots. The objectives are to understand SMIB system modelling, examine small signal stability through simulation, and obtain parameters like damping ratio from the linearised model.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Diana Rendina
Librarians are leading the way in creating future-ready citizens – now we need to update our spaces to match. In this session, attendees will get inspiration for transforming their library spaces. You’ll learn how to survey students and patrons, create a focus group, and use design thinking to brainstorm ideas for your space. We’ll discuss budget friendly ways to change your space as well as how to find funding. No matter where you’re at, you’ll find ideas for reimagining your space in this session.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
2. Virtual Memory
When we into protected mode
Selector
Software Segmentation Paging RAM
Offset
Virtual Linear Physical
3. Virtual Memory
Hence the “selector” has no effect and
the linear address always equals the
offset of the virtual address.
so, we only care ....
Virtual
Paging RAM
address
Linear Physical