Operating Systems notes
71 notes by 52 users · Page 2 of 2
This page gathers Operating Systems notes on topics from Windows editions to processes and file systems. School students, university students and professional candidates can use them to revise these topics; teachers can find material to share. There are more than 50 notes by over 40 users, spanning school, university and professional study. Choose a note to begin.
Select topic
- Operating System Functions and Services501
- Types and History of Operating Systems106
- Operating System Structure and Booting55
- System Software and Utilities59
- User Interfaces37
- Processes, Threads and Communication53
- CPU Scheduling29
- Process Synchronization and Deadlocks26
- Memory Management63
- File Management and File Systems102
- Disk and Mass Storage6
- Device Management and Drivers10
- Linux and Unix16
- Windows Configuration and Administration36
Notes
-
Untitled OPERATING SYSTEM An operating system is software that manages all of the hardware resources associated with your desktop or laptop. The operating system manages the communicati...
-
DNS Project 3.5.2. OProfile OProfile (oprofile) is a system-wide performance monitoring tool. It uses the processor's dedicated performance monitoring hardware to retrieve information about the kernel and system executables,...
-
Untitled The main functions of an operating system Provides a user interface Booting the computer
-
Operating System What is an OS? A software that communicates to a hardware and allows other programs to run. Functions of OS: - Multi-task - Multiprogram - Batch processing - Error handling - Processor management - Memory manag...
-
Linux Vs Windos - creado desde un Mapa Mental THE ESSENTIAL DIFFERENCES Linux Windows Linux is a Unix-like operating system that was designed to provide personal computer users a free It is an operating system very low cost Drives don’t have letters, they have mo...
-
Memory Management Segment provides multiple address spacesAddress space may not be of same sizeMaintained in the segment descriptor table PROGRAM sequence of machine instructions stored in main memory and executed by CPUstore data in t...
-
Device Controllers I/O units often consists of a mechanical component and an electronic component.The electronic component is called device controller (adapter).The mechanical component is the device itself.The interface between the con...
-
Operating System Operating System An operating system acts as an intermediary between the user of a computer and computer hardware. The purpose of an operating system is to provide an environment in which a user can execute programs i...
-
Operating System - created from Mind Map Multitasking The User Interface Memory management
-
Memory Management In a virtual memory system all of these addresses are virtual addresses and not physical addresses. These virtual addresses are converted into physical addresses by the processor based on information held in a set of ...
-
OS Operating System Operating System | Introduction of Operating System An operating system acts as an intermediary between the user of a computer and computer hardware. The purpose of an operating system is to pr...
-
Resource deadlock Four conditions must hold for there to be a resource deadlock : Mutual exclusion condition. Each resource is either currently assigned to exactly one process or is available. Hold-and-wait condition. Processes current...
-
Chapter 2 Summary OPERATING SYSTEM OVERVIEW Summarize, at a top level, the key functions of an operating system (OS). Discuss the evolution of operating systems for early simple batch systems to modern complex systems. Give a brief exp...
-
Chapter 11 Summary I/O MANAGEMENT AND DISK SCHEDULING Summarize key categories of I/O devices on computers. Discuss the organization of the I/O function. Explain some of the key issues in the design of OS support for I/O. Analyze the pe...
-
Untitled OPERATING SYSTEM TYPES 1. Batch operating sytem - This type of operating system does not interact with the computer directly. There is an operator which takes similar jobs having the same requirement ...
-
operating system what is a operating system?An operating system helps the computer perform its basic functions, such as scheduling, data managing, input and output control and controlling the backing store.File managementA file system...
-
File Naming All current operating systems allow strings of one to eight letters as legal file names. Windows file systems: FAT-16, FAT-32, NTFS, ReFS (Resilient File System) File extension is the part following the period in the ...
-
Chapter 3 Summary PROCESS DESCRIPTION AND CONTROL Define the term process and explain the relationship between processes and process control blocks. Explain the concept of a process state and discuss the state transitions the processes...
-
File attributes Protection, Password, Creator, Owner: are related to the file's protection and tell who may access it and who may not. Hidden flag: do not appear in listing of all the files. Archive flag: is a bit that keeps track of...
-
Lab 3-1: Find Files and Determine File Types TEST 1. Use find command to search for all files in entire directory structure that have been modified in the past 20 days and display their type. 2. Use find command again and search for named pipe and socket files. ...
-
Chapter 12 Summary FILE MANAGEMENT Describe the basic concepts of files and file systems. Understand the principal techniques for file organization and access. Define B-trees. Explain file directories. Understand the requirements for fi...
-
Chapter 5 Summary CONCURRENCY: MUTUAL EXCLUSION AND SYNCHRONIZATION Discuss basic concepts related to concurrency, such as race conditions, OS concerns, and mutual exclusion requirements. Understand hardware approaches to supporting mu...
-
MEMORY MANAGEMENT - created from Mind Map DEFINITION MEMORY MANAGER MEMORY MANAGEMENT STRATEGIES
-
Operating System - created from Mind Map User Interface Multitasking Systems software is software that governs the computer system. It:
-
Chapter 4 Summary THREADS Understand the distinction between process and thread. A process is an instance of a computer program that is being executed. A thread is a single sequence stream within in a process, that is the smallest one ...
-
Demon Linux When a daemon starts up, it has to do some low-level housework to get itself ready for its real job. This involves a few steps: Fork off the parent process Change file mode mask (umask) Open any logs for writing Creat...
-
Untitled A Thread is an execution flow, two different threads can have different execution flows. A Process is a thread + Address space you can have a full utilisation of the CPU In thread you can get concurrency and more util...
-
Operating system the operating system is where the computer manages all the hardware and software. it also provides a user interface for you to be able to not code and just get the files up.its also helps boots (starts) the computer u...
-
Operating Systems - created from Mind Map Personal Workgroup Enterprise
-
Addressing - created from Mind Map Physical is the absolute address within main memory Buses use this Logical is the address within the process relitve to the start of the processs CPU use this
-
Operating Systems Past Paper