Lecture-2
... OS provides uniform, logical view of information storage Abstracts physical properties to logical storage unit – file Each medium is controlled by device (i.e., disk drive, tape drive) ...
... OS provides uniform, logical view of information storage Abstracts physical properties to logical storage unit – file Each medium is controlled by device (i.e., disk drive, tape drive) ...
Operating Systems - School of Computer Science, University of
... Interrupt transfers control to the interrupt service routine generally, through the interrupt vector, which contains the addresses of all the service routines Interrupt architecture must save the address of the interrupted instruction so original processing may be resumed Incoming interrupts are dis ...
... Interrupt transfers control to the interrupt service routine generally, through the interrupt vector, which contains the addresses of all the service routines Interrupt architecture must save the address of the interrupted instruction so original processing may be resumed Incoming interrupts are dis ...
pdf
... But had many problems too. Here are a few: names too short and file system damaged on crash Didn’t plan for threads and never supported them well “Select” system call and handling of “signals” was ugly and out of character w.r.t. other features Hard to add dynamic libraries (poor handling of p ...
... But had many problems too. Here are a few: names too short and file system damaged on crash Didn’t plan for threads and never supported them well “Select” system call and handling of “signals” was ugly and out of character w.r.t. other features Hard to add dynamic libraries (poor handling of p ...
The concept of operating system
... Multiprogramming organizes jobs (code and data) so CPU always has one to execute A subset of total jobs in system is kept in memory One job selected and run via job scheduling When it has to wait (for I/O, for example), OS switches to another job ...
... Multiprogramming organizes jobs (code and data) so CPU always has one to execute A subset of total jobs in system is kept in memory One job selected and run via job scheduling When it has to wait (for I/O, for example), OS switches to another job ...
IT ESSENTIALS V. 4.1 Module 5 Fundamental Operating Systems 5
... system Creates the environment of an earlier operating system for applications that are not compatible with the current operating system This allows an application to be run even if the user does not have the required administrative privileges Dir Xcopy ...
... system Creates the environment of an earlier operating system for applications that are not compatible with the current operating system This allows an application to be run even if the user does not have the required administrative privileges Dir Xcopy ...
IT ESSENTIALS V. 4.1 Module 5 Fundamental Operating Systems
... Conventional 1 MB to the maximum amount of RAM installed One Hard disk space that is used to emulate RAM 32-bit A real-mode application runs within a protected-mode operating system Creates the environment of an earlier operating system for applications that are not compatible with the current opera ...
... Conventional 1 MB to the maximum amount of RAM installed One Hard disk space that is used to emulate RAM 32-bit A real-mode application runs within a protected-mode operating system Creates the environment of an earlier operating system for applications that are not compatible with the current opera ...
Tips: To get information about installed OS quickly (for Windows)
... 4. real-time operating system, guarantees to process events or data by a specific moment in time. A real-time operating system may be single- or multi-tasking, but when multitasking, it uses specialized scheduling algorithms so that a deterministic nature of behavior is achieved. 32-bit or 64-bit OS ...
... 4. real-time operating system, guarantees to process events or data by a specific moment in time. A real-time operating system may be single- or multi-tasking, but when multitasking, it uses specialized scheduling algorithms so that a deterministic nature of behavior is achieved. 32-bit or 64-bit OS ...
AUSI-13- (Software)
... • One program may execute more than one task • Example print and edit at the same time ...
... • One program may execute more than one task • Example print and edit at the same time ...
MEMORY MANAGEMENT
... Figure 2.8 indicates a way in which processes may be managed. Two processes, A and B, exist in portions of main memory. That is, a block of memory is allocated to each process that contains the program, data, and context information. Each process is recorded in a process list built and maintained by ...
... Figure 2.8 indicates a way in which processes may be managed. Two processes, A and B, exist in portions of main memory. That is, a block of memory is allocated to each process that contains the program, data, and context information. Each process is recorded in a process list built and maintained by ...
Unit-5 - Ipemgzb.ac.in
... First developed as a small but self-contained kernel in 1991 by Linus Torvalds, with the major design goal of UNIX compatibility. Its history has been one of collaboration by many users from all around the world, corresponding almost exclusively over the Internet. It has been designed to run efficie ...
... First developed as a small but self-contained kernel in 1991 by Linus Torvalds, with the major design goal of UNIX compatibility. Its history has been one of collaboration by many users from all around the world, corresponding almost exclusively over the Internet. It has been designed to run efficie ...
MS-DOS-&-PC-DOS-by-Lindsey-Buranych-Alan-Crouch
... • Drives: Run from hard disk or diskette • Video: Monochrome, CGA, EGA, VGA or better • File Systems: FAT, SMB ...
... • Drives: Run from hard disk or diskette • Video: Monochrome, CGA, EGA, VGA or better • File Systems: FAT, SMB ...
Allowable Process States - Universitas Pendidikan Indonesia
... • Drives: Run from hard disk or diskette • Video: Monochrome, CGA, EGA, VGA or better • File Systems: FAT, SMB ...
... • Drives: Run from hard disk or diskette • Video: Monochrome, CGA, EGA, VGA or better • File Systems: FAT, SMB ...
System - Regis University: Academic Web Server for Faculty
... • OS provides uniform, logical view of information storage ▫ Abstracts physical properties to logical storage unit file ▫ Each medium is controlled by device (i.e., disk drive, ...
... • OS provides uniform, logical view of information storage ▫ Abstracts physical properties to logical storage unit file ▫ Each medium is controlled by device (i.e., disk drive, ...
Chapter 6: Operating Systems: The Genie in the Computer
... Program and data are taken from disk and placed in RAM. Cache controller loads instructions and data into cache. CPU takes program instructions from cache RAM. (fast!) Data needed by the program is also taken from RAM. (fast!) CPU performs the instructions of the program. The results of the computat ...
... Program and data are taken from disk and placed in RAM. Cache controller loads instructions and data into cache. CPU takes program instructions from cache RAM. (fast!) Data needed by the program is also taken from RAM. (fast!) CPU performs the instructions of the program. The results of the computat ...
An operating System
... Time sharing is a technique which enables many people, located at various terminals, to use a particular computer system at the same time. Time-sharing or multitasking is a logical extension of multiprogramming. Processor's time which is shared among multiple users simultaneously is termed as time-s ...
... Time sharing is a technique which enables many people, located at various terminals, to use a particular computer system at the same time. Time-sharing or multitasking is a logical extension of multiprogramming. Processor's time which is shared among multiple users simultaneously is termed as time-s ...
Computer system structure overview
... Computer Startup bootstrap program is loaded at power-up ...
... Computer Startup bootstrap program is loaded at power-up ...
pptx
... Does not having a real machine to test on hurt the paper? What did you really like about this paper? What did you really not like about this paper? ...
... Does not having a real machine to test on hurt the paper? What did you really like about this paper? What did you really not like about this paper? ...
Operating Systems: Basic Concepts and Challenges against
... processor, four CPUs are going to share the work required, which obviously means that the computation time would be less. - So, do you now get a reason why your Intel Pentium 4 processor hanged more than your Intel i5? The Intel Pentium 4 was a single-core processor and the entire burden was always ...
... processor, four CPUs are going to share the work required, which obviously means that the computation time would be less. - So, do you now get a reason why your Intel Pentium 4 processor hanged more than your Intel i5? The Intel Pentium 4 was a single-core processor and the entire burden was always ...
Features Of Sprite Operating System
... • UNIX allows processes to share only code but Sprite allows processes to share both code and heap of a process address space. • Sprite initially loads code and initialized heap pages from object files in the file system. • Because of using high-performance file servers, Sprite file system is fast e ...
... • UNIX allows processes to share only code but Sprite allows processes to share both code and heap of a process address space. • Sprite initially loads code and initialized heap pages from object files in the file system. • Because of using high-performance file servers, Sprite file system is fast e ...
RAJALAKSHMI ENGINEERING COLLEGE
... It controls and coordinates the use of the hardware among the various application programs for the various users. 22. Why is the Operating System viewed as a resource allocate& control program? A computer system has many resources - hardware & software that may be required to solve a problem, like C ...
... It controls and coordinates the use of the hardware among the various application programs for the various users. 22. Why is the Operating System viewed as a resource allocate& control program? A computer system has many resources - hardware & software that may be required to solve a problem, like C ...
Presentación de PowerPoint
... File: collection of bits with a name saved in a physical storage device File system: mecanism to access the file using its symbolic name Directory: data structure that groups a set of files File operations: open, close, read, write, append, ... UNIX file management is implemented using indexed-nodes ...
... File: collection of bits with a name saved in a physical storage device File system: mecanism to access the file using its symbolic name Directory: data structure that groups a set of files File operations: open, close, read, write, append, ... UNIX file management is implemented using indexed-nodes ...
Lecture 2, Part 1
... – CPU transfers data to/from device controller registers – Transfers are typically one byte or word at a time – May be accomplished with normal or I/O instructions ...
... – CPU transfers data to/from device controller registers – Transfers are typically one byte or word at a time – May be accomplished with normal or I/O instructions ...
lecture4
... processes running bash share it. Dynamic libraries are another common example of executing code shared between several processes. ...
... processes running bash share it. Dynamic libraries are another common example of executing code shared between several processes. ...