operating systems structures
... kernel is a smaller kernel. The resulting OS is easier to port from one hard ware design to another. It also provides more security and reliability since most services are running as user rather than kernel processes. Mach, MacOS X Server, QNX, OS/2, and Windows NT are examples of microkernel based ...
... kernel is a smaller kernel. The resulting OS is easier to port from one hard ware design to another. It also provides more security and reliability since most services are running as user rather than kernel processes. Mach, MacOS X Server, QNX, OS/2, and Windows NT are examples of microkernel based ...
Slides - Bilkent University Computer Engineering Department
... Operating System Concepts, 7th and 8th editions, Silberschatz et al. Wiley. Modern Operating Systems, Andrew S. Tanenbaum, 3rd edition, 2009. These slides are adapted/modified from the textbook and its slides: Operating System Concepts, Silberschatz et al., 7th and 8th editions, Wiley. ...
... Operating System Concepts, 7th and 8th editions, Silberschatz et al. Wiley. Modern Operating Systems, Andrew S. Tanenbaum, 3rd edition, 2009. These slides are adapted/modified from the textbook and its slides: Operating System Concepts, Silberschatz et al., 7th and 8th editions, Wiley. ...
PPT 02 - Mesa Community College
... devices, keyboards, and displays. Devices installed on each computer may be different, so the OS uses device drivers. Plug-and-Play – devices have software encoded on them (ROM), which allows them to be recognized by the OS when installed, so the ...
... devices, keyboards, and displays. Devices installed on each computer may be different, so the OS uses device drivers. Plug-and-Play – devices have software encoded on them (ROM), which allows them to be recognized by the OS when installed, so the ...
Booting and Shutting Down UNIX Flavored Operating Systems
... – halt: Performs essential duties required to bring the system down, waits for the filesystem writes to complete then halts the kernel. – reboot: Executes identically to halt with the excepting that it causes to system to restart from scratch rather than halting the kernel. – kill init: This is not ...
... – halt: Performs essential duties required to bring the system down, waits for the filesystem writes to complete then halts the kernel. – reboot: Executes identically to halt with the excepting that it causes to system to restart from scratch rather than halting the kernel. – kill init: This is not ...
System Call - KOVAN Research Lab
... System-call interface maintains a table indexed according to these numbers The system call interface invokes intended system call in OS kernel and returns status of the system call and any return values The caller need know nothing about how the system call is implemented Just needs to obey API and ...
... System-call interface maintains a table indexed according to these numbers The system call interface invokes intended system call in OS kernel and returns status of the system call and any return values The caller need know nothing about how the system call is implemented Just needs to obey API and ...
basic-os-concepts
... 2. Operating system – controls and coordinates the use of the hardware among the various application programs for the various users. 3. Applications programs – define the ways in which the system resources are used to solve the computing problems of the users (compilers, database systems, video game ...
... 2. Operating system – controls and coordinates the use of the hardware among the various application programs for the various users. 3. Applications programs – define the ways in which the system resources are used to solve the computing problems of the users (compilers, database systems, video game ...
system programs
... Unix/Linux have essentially similar set of components. The kernel - everything below the system-call interface and above the physical hardware. ...
... Unix/Linux have essentially similar set of components. The kernel - everything below the system-call interface and above the physical hardware. ...
D00_Files
... POSIX is actually a collection of standards that cover system calls, libraries, applications and more… POSIX 1003.1 defines the C language interface to a Unix-like kernel A kernel is ...
... POSIX is actually a collection of standards that cover system calls, libraries, applications and more… POSIX 1003.1 defines the C language interface to a Unix-like kernel A kernel is ...
Operating System Overview
... User level vs. Kernel level • Kernel (a.k.a. supervisory or privileged) level • All instructions are available • Total control possible so OS must say “Mine, all mine” (Daffy Duck) ...
... User level vs. Kernel level • Kernel (a.k.a. supervisory or privileged) level • All instructions are available • Total control possible so OS must say “Mine, all mine” (Daffy Duck) ...
Chapter 1: Introduction
... Operating System Concepts, 7th and 8th editions, Silberschatz et al. Wiley. Modern Operating Systems, Andrew S. Tanenbaum, 3rd edition, 2009. These slides are adapted/modified from the textbook and its slides: Operating System Concepts, Silberschatz et al., 7th and 8th editions, Wiley. ...
... Operating System Concepts, 7th and 8th editions, Silberschatz et al. Wiley. Modern Operating Systems, Andrew S. Tanenbaum, 3rd edition, 2009. These slides are adapted/modified from the textbook and its slides: Operating System Concepts, Silberschatz et al., 7th and 8th editions, Wiley. ...
CS 377: Operating Systems Outline
... and supported only the Minix file system • Version 2.6.34 (Summer 2010): most common OS for servers, supports dozens of file systems, runs on anything from cell phones to super computers ...
... and supported only the Minix file system • Version 2.6.34 (Summer 2010): most common OS for servers, supports dozens of file systems, runs on anything from cell phones to super computers ...
Agenda - Seneca - School of Information & Communications
... The Unix OS was developed (based on Multics & CTSS operating systems) by Ken Thompson at the AT&T Bell Laboratories in 1969. He wanted to create an multi-user operating system to run “space wars” game. Ken’s philosophy was to create an operating system with commands or “utilities” that would do one ...
... The Unix OS was developed (based on Multics & CTSS operating systems) by Ken Thompson at the AT&T Bell Laboratories in 1969. He wanted to create an multi-user operating system to run “space wars” game. Ken’s philosophy was to create an operating system with commands or “utilities” that would do one ...
Fundamentals of Operating Systems - DBBM
... • It handles input and output to and from attached hardware devices, such as hard disks, printers, and dialup ports. • It sends messages to each application or interactive user (or to a system operator) about the status of operation and any errors that may have occurred. • It can offload the managem ...
... • It handles input and output to and from attached hardware devices, such as hard disks, printers, and dialup ports. • It sends messages to each application or interactive user (or to a system operator) about the status of operation and any errors that may have occurred. • It can offload the managem ...
FAT:
... system HPFS contained several important new features. When Microsoft created their new operating system, they borrowed many of these concepts for NTFS. When Microsoft created their new operating system, they borrowed many of these concepts for NTFS. Probably as a result of this common ancestry, HPFS ...
... system HPFS contained several important new features. When Microsoft created their new operating system, they borrowed many of these concepts for NTFS. When Microsoft created their new operating system, they borrowed many of these concepts for NTFS. Probably as a result of this common ancestry, HPFS ...
Unit OS2: Operating Systems Principles
... running in the context of the Windows Subsystem process to a set of callable services running in kernel mode. The primary reason for this shift was to improve overall system performance. Having a separate server process that contains the Windows graphics subsystem required multiple thread and proces ...
... running in the context of the Windows Subsystem process to a set of callable services running in kernel mode. The primary reason for this shift was to improve overall system performance. Having a separate server process that contains the Windows graphics subsystem required multiple thread and proces ...
A Reflective Middleware Framework for Communication in
... Not divided into modules, Interfaces and levels of functionality are not well separated ...
... Not divided into modules, Interfaces and levels of functionality are not well separated ...
oslecture2old
... Not divided into modules, Interfaces and levels of functionality are not well separated ...
... Not divided into modules, Interfaces and levels of functionality are not well separated ...
Frequently Asked Questions - Operating System Concepts
... 25. What is hard disk and what is its purpose? 26. Differentiate between Complier and Interpreter? 27. What are the different tasks of Lexical analysis? 28. What are the different functions of Syntax phase, Sheduler? 29. What are the main difference between Micro-Controller and MicroProcessor? 30. ...
... 25. What is hard disk and what is its purpose? 26. Differentiate between Complier and Interpreter? 27. What are the different tasks of Lexical analysis? 28. What are the different functions of Syntax phase, Sheduler? 29. What are the main difference between Micro-Controller and MicroProcessor? 30. ...
ppt - CSE Home
... • naming: how are resources named (by users or programs)? • security: how is the integrity of the OS and its resources ensured? • protection: how is one user/program protected from another? • performance: how do we make it all go fast? • reliability: what happens if something goes wrong (either with ...
... • naming: how are resources named (by users or programs)? • security: how is the integrity of the OS and its resources ensured? • protection: how is one user/program protected from another? • performance: how do we make it all go fast? • reliability: what happens if something goes wrong (either with ...
Computer Review
... considered to be a program in execution. Associated with each process is its address space which is a list of memory locations which the process can read and write to. The address space contains the executable program, the program’s data and its stack. Also associated with each process is some set o ...
... considered to be a program in execution. Associated with each process is its address space which is a list of memory locations which the process can read and write to. The address space contains the executable program, the program’s data and its stack. Also associated with each process is some set o ...
Unix
... Since many users share one large disk, each user is given a “piece” of the disk, called an account. Each part of the disk has permissions associated with it. You will have permission to view only your own files. In order to work in your account, you will login with a username and password. (to b ...
... Since many users share one large disk, each user is given a “piece” of the disk, called an account. Each part of the disk has permissions associated with it. You will have permission to view only your own files. In order to work in your account, you will login with a username and password. (to b ...
slides
... Is useful for exchanging smaller amounts of data, because no conflicts need be avoided. Is easy to implement. ...
... Is useful for exchanging smaller amounts of data, because no conflicts need be avoided. Is easy to implement. ...
Unix
... Since many users share one large disk, each user is given a “piece” of the disk, called an account. Each part of the disk has permissions associated with it. You will have permission to view only your own files. In order to work in your account, you will login with a username and password. (to b ...
... Since many users share one large disk, each user is given a “piece” of the disk, called an account. Each part of the disk has permissions associated with it. You will have permission to view only your own files. In order to work in your account, you will login with a username and password. (to b ...