ch04 - Computer Science
... Translate files so that different programs can read them Guard against viruses and other potentially harmful programs (as described in the chapter on computer security and risks) Compress files so they take up less disk space Perform other important, if unexciting, tasks Symantec Norton Ut ...
... Translate files so that different programs can read them Guard against viruses and other potentially harmful programs (as described in the chapter on computer security and risks) Compress files so they take up less disk space Perform other important, if unexciting, tasks Symantec Norton Ut ...
A1A_CptrArch
... database apps, JVM (it’s multithreaded); can take advantage of multiple processors. ...
... database apps, JVM (it’s multithreaded); can take advantage of multiple processors. ...
2. Operating System Structure
... entered into executable files • graphical user interface (GUI): window interface Program execution. Load into memory and run. I/O operations. Programs require I/O. Users usually cannot control I/O devices directly. Done by the OS. File-system manipulation. Read, write, create, delete and search with ...
... entered into executable files • graphical user interface (GUI): window interface Program execution. Load into memory and run. I/O operations. Programs require I/O. Users usually cannot control I/O devices directly. Done by the OS. File-system manipulation. Read, write, create, delete and search with ...
Chapter 2 Operating System Overview
... more than one user or program attempts to make use of a shared resource at the same time only one routine at a time allowed to perform an update against the file ...
... more than one user or program attempts to make use of a shared resource at the same time only one routine at a time allowed to perform an update against the file ...
Operating Systems
... interact with a computer at the same time • Multiprogramming allowed multiple processes to be active at once, which gave rise to the ability for programmers to interact with the computer system directly, while still sharing its resources • In a timesharing system, each user has his or her own virtua ...
... interact with a computer at the same time • Multiprogramming allowed multiple processes to be active at once, which gave rise to the ability for programmers to interact with the computer system directly, while still sharing its resources • In a timesharing system, each user has his or her own virtua ...
Abstract View of System Components
... On-line communication between the user and the system is provided; when the operating system finishes the execution of one command, it seeks the next “control statement” not from a card reader, but rather from the user’s keyboard. On-line system must be available for users to access data and code. ...
... On-line communication between the user and the system is provided; when the operating system finishes the execution of one command, it seeks the next “control statement” not from a card reader, but rather from the user’s keyboard. On-line system must be available for users to access data and code. ...
CMPU1022 Operating Systems 1
... 9. Discuss networked, client-server and distributed operating systems and how they differ from single user operating systems 10. Display and perform proficient command line interaction with various operating systems ...
... 9. Discuss networked, client-server and distributed operating systems and how they differ from single user operating systems 10. Display and perform proficient command line interaction with various operating systems ...
Operating system organization
... In 1988, Microsoft decided to develop a “new technology” (NT) portable operating system that supported both the OS/2 and POSIX APIs. ...
... In 1988, Microsoft decided to develop a “new technology” (NT) portable operating system that supported both the OS/2 and POSIX APIs. ...
SHC500 OS 1.7.4 Release Notes
... These issues are resolved in this version of the Operating System. The AKU was updated to integrate fixes from Microsoft, such as a fix to support SHA-2. Updated GNSS control panel to handle differences between U-Blox and NVS GNSS receivers. Updated System control panel to indicate which receiver is ...
... These issues are resolved in this version of the Operating System. The AKU was updated to integrate fixes from Microsoft, such as a fix to support SHA-2. Updated GNSS control panel to handle differences between U-Blox and NVS GNSS receivers. Updated System control panel to indicate which receiver is ...
The Rise and Fall of the Operating System
... the Internet and the world running has been written against the POSIX-y interfaces offered by a selection of operating systems. No matter how much you do not need the obsolete features provided by the square peg operating system, you do want the applications to work. From-scratch implementations of ...
... the Internet and the world running has been written against the POSIX-y interfaces offered by a selection of operating systems. No matter how much you do not need the obsolete features provided by the square peg operating system, you do want the applications to work. From-scratch implementations of ...
Solaris System Management - Understanding System Concepts -
... – /platform//kernel – kernel
components for a specific architecture (sparc or Intel)
– /platform//kernel – contains
the kernel components specific to this HW class
– /usr/kernel – contains kernel components common to
all platforms within a particular instruction s ...
... – /platform/
OS-DS-Arch
... while coexisting with a non-real-time application such as web browsing. That is kernel would provide only the most basic mechanisms upon which the general resource management tasks at a node are carried out. Server modules would be dynamically loaded as required, to implement the required RM policie ...
... while coexisting with a non-real-time application such as web browsing. That is kernel would provide only the most basic mechanisms upon which the general resource management tasks at a node are carried out. Server modules would be dynamically loaded as required, to implement the required RM policie ...
course outline - Clackamas Community College
... Demonstrate and explain the desktop metaphor as exemplified in both the Windows and Mac OS GUIs with a focus on the concepts and skills that are common amongst four versions of Windows. (NT, 98, 2000, and XP.) For all of these operating systems, demonstrate and explain their basic features, plus the ...
... Demonstrate and explain the desktop metaphor as exemplified in both the Windows and Mac OS GUIs with a focus on the concepts and skills that are common amongst four versions of Windows. (NT, 98, 2000, and XP.) For all of these operating systems, demonstrate and explain their basic features, plus the ...
PPT
... The operating system is responsible for the following activities in connection with process management: Creating and deleting both user and system processes Suspending and resuming processes Providing mechanisms for process synchronization ...
... The operating system is responsible for the following activities in connection with process management: Creating and deleting both user and system processes Suspending and resuming processes Providing mechanisms for process synchronization ...
Homework 1 Solutions
... the process which is triggered on either of the above calls. When write() is called, a trap is always made to kernel mode and the output is written without delay. On the other hand, fprintf() is not a system call and may be writing to a buffer, which would be flushed via a write() call once it is fu ...
... the process which is triggered on either of the above calls. When write() is called, a trap is always made to kernel mode and the output is written without delay. On the other hand, fprintf() is not a system call and may be writing to a buffer, which would be flushed via a write() call once it is fu ...
Lecture 2
... Operating System Structure • Basic idea of multiprogramming: – Keep multiple jobs in memory. – When one job blocks on I/O (or other events), the operating system: • Starts the I/O operation. • Switches to another job that is ready to execute. • Now the CPU and I/O device are executing in parallel. ...
... Operating System Structure • Basic idea of multiprogramming: – Keep multiple jobs in memory. – When one job blocks on I/O (or other events), the operating system: • Starts the I/O operation. • Switches to another job that is ready to execute. • Now the CPU and I/O device are executing in parallel. ...
Module 3: Operating
... The virtual-machine concept provides complete protection of system resources since each virtual machine is isolated from all other virtual machines. This isolation, however, permits no direct sharing of resources A virtual-machine system is a perfect vehicle for operating-systems research and develo ...
... The virtual-machine concept provides complete protection of system resources since each virtual machine is isolated from all other virtual machines. This isolation, however, permits no direct sharing of resources A virtual-machine system is a perfect vehicle for operating-systems research and develo ...
What is an Operating System?
... On-line communication between the user and the system is provided; when the operating system finishes the execution of one command, it seeks the next “control statement” not from a card reader, but rather from the user’s keyboard. On-line system must be available for users to access data and code. ...
... On-line communication between the user and the system is provided; when the operating system finishes the execution of one command, it seeks the next “control statement” not from a card reader, but rather from the user’s keyboard. On-line system must be available for users to access data and code. ...
Introduction to Operating Systems
... Services of an Operating System (cont.) Introduction to Operating Systems ...
... Services of an Operating System (cont.) Introduction to Operating Systems ...
Install the Operating System
... needed updates, and recommends what should be downloaded and installed. Automatic update services can setup to download ...
... needed updates, and recommends what should be downloaded and installed. Automatic update services can setup to download ...
Traditional UNIX kernels
... operating systems and more To date, Apple MAC OS X is the most widely used desktop version of UNIX ...
... operating systems and more To date, Apple MAC OS X is the most widely used desktop version of UNIX ...
Operating System Architecture and Distributed Systems
... system systems. If performance, rather than portability is goal, then middleware may use facilities of MK directly. ...
... system systems. If performance, rather than portability is goal, then middleware may use facilities of MK directly. ...
Slides(PowerPoint)
... (swapped out) When they are needed again, they are brought back into the memory (swapped in) OS Spring’03 ...
... (swapped out) When they are needed again, they are brought back into the memory (swapped in) OS Spring’03 ...
2. OS Components
... o Another option, in an interactive system, is to ask the user (via a sequence of system calls to output the prompting message and to read the response from the terminal) whether to replace the existing file or to abort the program. When both files are set up, we enter a loop o that reads from the i ...
... o Another option, in an interactive system, is to ask the user (via a sequence of system calls to output the prompting message and to read the response from the terminal) whether to replace the existing file or to abort the program. When both files are set up, we enter a loop o that reads from the i ...