Operating Systems (OS)
... e.g. a batch job, the shell of a login session, a program run The execution of processes is controlled by the kernel and is interlaced – this part of the kernel is known as the despatcher or low-level scheduler when a process ends, or uses up its scheduled time, or cannot be continued because an int ...
... e.g. a batch job, the shell of a login session, a program run The execution of processes is controlled by the kernel and is interlaced – this part of the kernel is known as the despatcher or low-level scheduler when a process ends, or uses up its scheduled time, or cannot be continued because an int ...
user mode
... If it could, could get access to all physical memory. Dual Mode – Kernel/protected model: no restriction, can touch any physical memory page – User mode: where you program runs, can only touch part of the virtual address space ...
... If it could, could get access to all physical memory. Dual Mode – Kernel/protected model: no restriction, can touch any physical memory page – User mode: where you program runs, can only touch part of the virtual address space ...
System Software and Operating Systems
... options from a menu typically using the arrow and Enter keys Graphical User Interface (GUI): the user points to icons with the mouse, etc. ...
... options from a menu typically using the arrow and Enter keys Graphical User Interface (GUI): the user points to icons with the mouse, etc. ...
Why Study OS?
... Phase 3: ICs and Multiprogramming The extreme: computer as a utility: MULTICS (late 60s) u Problem: thrashing as no. of users increases u Didn’t work then, but idea may be back u Let others administer and manage; I’ll just use u ICs led to mini-computers: cheap, small, powerful u Stripped ...
... Phase 3: ICs and Multiprogramming The extreme: computer as a utility: MULTICS (late 60s) u Problem: thrashing as no. of users increases u Didn’t work then, but idea may be back u Let others administer and manage; I’ll just use u ICs led to mini-computers: cheap, small, powerful u Stripped ...
Ch. 3 - Installation
... Steps for installation including options chosen Keep documentation, DVDs in a binder ...
... Steps for installation including options chosen Keep documentation, DVDs in a binder ...
Chapter 16 PowerPoint
... The DOS file system uses a tree structure. A fully qualified path is the list of directories from the root to the file. The DIR command displays the contents of the current or a specified directory. DOS does not support Windows long ...
... The DOS file system uses a tree structure. A fully qualified path is the list of directories from the root to the file. The DIR command displays the contents of the current or a specified directory. DOS does not support Windows long ...
OUTLINE - Bilkent University
... Windows File Systems • include FAT which is File Allocate Table. • File Allocate Table is a partially -patented file system -developed by Microsoft -for MS-DOS and versions of Microsoft Windows. • a cluster is the unit of disk space allocation for files and directories. • Fragmentation is a alloca ...
... Windows File Systems • include FAT which is File Allocate Table. • File Allocate Table is a partially -patented file system -developed by Microsoft -for MS-DOS and versions of Microsoft Windows. • a cluster is the unit of disk space allocation for files and directories. • Fragmentation is a alloca ...
DOS - InfoShare.tk
... • When a system is started or reset, program execution begins at address FFF0H. • The system start-up routine of ROM runs a test called Power On Self Test (POST) which check whether peripherals connected to the computer are working or not. ...
... • When a system is started or reset, program execution begins at address FFF0H. • The system start-up routine of ROM runs a test called Power On Self Test (POST) which check whether peripherals connected to the computer are working or not. ...
COS 318: Operating Systems Overview
... Phase 3: ICs and Multiprogramming The extreme: computer as a utility: MULTICS (late 60s) u Problem: thrashing as no. of users increases u Didn’t work then, but is back u Let others administer and manage; I’ll just use u ICs led to mini-computers: cheap, small, powerful u Stripped down ver ...
... Phase 3: ICs and Multiprogramming The extreme: computer as a utility: MULTICS (late 60s) u Problem: thrashing as no. of users increases u Didn’t work then, but is back u Let others administer and manage; I’ll just use u ICs led to mini-computers: cheap, small, powerful u Stripped down ver ...
Cindy - Anatomy of a Window
... storage or use of applications and data The OS controls where applications and data are stored in memory ...
... storage or use of applications and data The OS controls where applications and data are stored in memory ...
Install the Operating System
... NTLDR loads the NTOSKRNL.EXE file and HAL.DLL NTLDR reads the registry files and loads device drivers NTOSKRNL.EXE starts the WINLOGON.EXE program and displays the Windows login screen ...
... NTLDR loads the NTOSKRNL.EXE file and HAL.DLL NTLDR reads the registry files and loads device drivers NTOSKRNL.EXE starts the WINLOGON.EXE program and displays the Windows login screen ...
Introduction to Windows NT/2000
... the ready or wait state, when a thread terminates, or when an application changes a thread’s priority or processor affinity. ...
... the ready or wait state, when a thread terminates, or when an application changes a thread’s priority or processor affinity. ...
System Software and Operating Systems
... options from a menu typically using the arrow and Enter keys Graphical User Interface (GUI): the user points to icons with the mouse, etc. ...
... options from a menu typically using the arrow and Enter keys Graphical User Interface (GUI): the user points to icons with the mouse, etc. ...
Blizzard Bag #2 – PC Maintenance
... It also introduced the integration of a Web Browser (Internet Explorer) as part of the operating system This caused a lot of controversy and helped involve Microsoft in an antitrust suit that made it all the way to the United ...
... It also introduced the integration of a Web Browser (Internet Explorer) as part of the operating system This caused a lot of controversy and helped involve Microsoft in an antitrust suit that made it all the way to the United ...
Design of MS-DOS
... EG : DIR, MD, CD etc…. • External DOS utilities are separate programs (files) with .EXE or .COM extensions. ...
... EG : DIR, MD, CD etc…. • External DOS utilities are separate programs (files) with .EXE or .COM extensions. ...
Linux Booting Procedure
... The first thing the kernel does is to execute init program Init is the root/parent of all processes executing on Linux The first processes that init starts is a script /etc/rc.d/rc.sysinit Based on the appropriate run-level, scripts are executed to start various processes to run the system and make ...
... The first thing the kernel does is to execute init program Init is the root/parent of all processes executing on Linux The first processes that init starts is a script /etc/rc.d/rc.sysinit Based on the appropriate run-level, scripts are executed to start various processes to run the system and make ...
(MSWindows, LINUX, UNIX) (China)
... a file name can contain up to 255 characters including letters, numbers, spaces and some other printable characters. ...
... a file name can contain up to 255 characters including letters, numbers, spaces and some other printable characters. ...
Windows NT Operating System
... that provides an API specific to an operating system. • When an application calls an API routine, the call is delivered through LPC facility to the environment subsystem. • The environment subsystem executes the API routine and returns the result to the application process by sending another LPC. • ...
... that provides an API specific to an operating system. • When an application calls an API routine, the call is delivered through LPC facility to the environment subsystem. • The environment subsystem executes the API routine and returns the result to the application process by sending another LPC. • ...
OS Services System calls and their types
... entire OS is stored in ROM. Problems with this approach is, change in booting code necessitates change in code ...
... entire OS is stored in ROM. Problems with this approach is, change in booting code necessitates change in code ...
Operating System
... □ has a fully interactive CLI. □ supports more file systems including DOS FAT (File Allocation Table), BSD FFS (File System Snapshot) and Linux file systems. □ If the configuration file is not configured properly, GRUB will revert to a CLI rather than rendering system unbootable. □ supports booting ...
... □ has a fully interactive CLI. □ supports more file systems including DOS FAT (File Allocation Table), BSD FFS (File System Snapshot) and Linux file systems. □ If the configuration file is not configured properly, GRUB will revert to a CLI rather than rendering system unbootable. □ supports booting ...
Part IV: Longer Answer: Use your knowledge of operating systems to
... Part I: Completion: Fill the blanks with one or more words that best complete the sentence. [20] 1. _______________ is a form of scheduling where each process waits its turn. 2. _______________ is a Microsoft operating systems with a graphical user interface; versions include 3.1, 95, 98, Me, NT, 20 ...
... Part I: Completion: Fill the blanks with one or more words that best complete the sentence. [20] 1. _______________ is a form of scheduling where each process waits its turn. 2. _______________ is a Microsoft operating systems with a graphical user interface; versions include 3.1, 95, 98, Me, NT, 20 ...