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interrupt - Universidade de Coimbra
interrupt - Universidade de Coimbra

... Mode Switch != Task Switch ...
Final Year Project Electronic & Computer Engineering
Final Year Project Electronic & Computer Engineering

... Installed Linux on computer Installed Real-Time Application Interface Got the first 3 out of first 4 experiments loading and one of the more advanced experiments also Created a Live CD of Ubuntu that will boot and fully function but not running of my kernel with built in RTAI ...
Understanding Networks
Understanding Networks

... • A network operating system (NOS), such as Windows Server 2003, Windows 2000 Server, UNIX, or Novell NetWare can be installed on a server and used to manage network resources, including user accounts, printers, and file sharing across the LAN. • In a client/server model, sometimes called a domain m ...
Chapter 6 Introduction to Network Operating Systems
Chapter 6 Introduction to Network Operating Systems

... • Linux is an operating system similar to UNIX. It runs on many different computers and was first released in 1991. • Linux is portable, which means versions can be found running on name brand or clone PCs. • Linux offers many features adopted from other versions of UNIX. ...
A+ Guide to Software, 4e - c-jump
A+ Guide to Software, 4e - c-jump

... DOS (Disk Operating System) • The first OS used by IBM computers/compatibles • Where DOS can still be found: – Specialized systems using older applications – On troubleshooting disks or CDs ...
Chapter 6 Introduction to Network Operating Systems
Chapter 6 Introduction to Network Operating Systems

... NOS Server Hardware • NOS servers are large systems with additional memory to support multiple tasks that are all active, or resident, in memory at the same time. • Additional disk space is also required on servers to hold shared files and to function as an extension to the internal memory on the s ...
2. Operating System Structure
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 ...
Chapter 6 Introduction to Network Operating Systems
Chapter 6 Introduction to Network Operating Systems

... NOS Server Hardware • NOS servers are large systems with additional memory to support multiple tasks that are all active, or resident, in memory at the same time. • Additional disk space is also required on servers to hold shared files and to function as an extension to the internal memory on the s ...
Chapter 6 Introduction to Network Operating Systems
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CS204 Operating Systems
CS204 Operating Systems

... Course Objectives 1. To impart fundamental understanding of the purpose, structure, functions of operating system. 2. To impart the key design issues of an operating system Syllabus Basic concepts of Operating System, its structure, Process management, inter-process communication, process synchroniz ...
Operating Systems I Interfaces to Operating Systems MCT260-Operating Systems I
Operating Systems I Interfaces to Operating Systems MCT260-Operating Systems I

... defines its characteristics • Hardware controls the way you physically manipulate the computer to establish communication ...
CS111—Operating System Principles
CS111—Operating System Principles

... then available for 80386-class machines, led to a resolve to implement a complete, full featured, POSIX-compliant, UNIX-like kernel, one that would draw from the best of BSD and System V while avoiding their worst flaws. Linux developed this kernel up to version 0.02 by himself, at which point it wa ...
Nechiele Whittington - Optimal Resume at KAPLAN UNIVERSITY
Nechiele Whittington - Optimal Resume at KAPLAN UNIVERSITY

... programming language was created and used to jumpstart the computing world. It was because of UNICS that a programmer named Ken Thompson over at Bell Labs ultimately created the first version of UNIX which was based off of the C programming language. From that point on, the world of computers would ...
Chapter 2: Attackers and Their Attacks
Chapter 2: Attackers and Their Attacks

... Operating systems are intended to be dynamic As users’ needs change, new hardware is introduced, and more sophisticated attacks are unleashed, operating systems must be updated on a regular basis However, vendors release a new version of an operating system every two to four years Vendors use certai ...
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... operating system. Enhancements occur at the protected subsystem level. New protected subsystems can be added without modifying either the base operating system or the other existing protected subsystems ...
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...  Now in the Learning Hub  Assumes you are using Audacity  If not, please see me asap  Seems a lot, but shouldn’t be too hard once you have Audacity and your files ...
What are Applications Software?
What are Applications Software?

... What is an Operating System? The operating system (OS) is a crucial piece of software in a computer system because it provides a platform on which all other programs can run. ...
Document
Document

... This course is devoted to to provides a clear description of the main concepts of operating systems and algorithms. This course will introduce a wide range of topics that is not tied to one specific type of operating system. Particular emphasis will be given to the following topics: Operating System ...
Chapter 2: Operating-System Structures
Chapter 2: Operating-System Structures

... – fetches a command from user and executes it • Command may be built-in, • Command may be another program • GUI: User-friendly desktop interface – Icons represent files, programs, actions, etc. Many operating systems now include both CLI and GUI interfaces Linux: command shells available (CLI); KDE ...
System Calls
System Calls

... System calls: The mechanism used by an application program to request service from the operating system. System calls often use a special machine code instruction which causes the processor to change mode (e.g. to "supervisor mode" or "protected mode"). This allows the OS to perform restricted actio ...
File
File

... Cooperative Linux, a port of the Linux kernel that allows it to run as an unprivileged lightweight virtual machine in kernel mode, on top of another OS kernel. Uses the concept of Cooperative Virtual Machine (CVM) Contains special Windows drivers, which allow it to run under Windows XP as a guest op ...
Operating Systems Review
Operating Systems Review

... _____ and _____ commands. a) cut, paste b) copy, paste c) file, open 5. When _____ , a computer performs two or more procedures or programs at the same time. a) threading b) task switching c) multitasking 6. Software programs that allow the operating system and applications to use specific hardware ...
CMPT 880: Internet Architectures and Protocols
CMPT 880: Internet Architectures and Protocols

...  Resources are shared to create virtual machines  CPU scheduling and virtual-memory techniques help to create the illusion that users have their own processors and memory ...
ppt
ppt

... Why does it speed up inter-module communication compared to Mach? What is a jump-table and why is it needed? On balance is Sandboxing a win or loss? o o ...
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Mobile operating system

A mobile operating system (or mobile OS) is an operating system for smartphones, tablets, PDAs, or other mobile devices. While computers such as the typical laptop are mobile, the operating systems usually used on them are not considered mobile ones as they were originally designed for bigger stationary desktop computers that historically did not have or need specific ""mobile"" features. This distinction is getting blurred in some newer operating systems that are hybrids made for both uses.Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use; usually including, and most of the following considered essential in modern mobile systems; a touchscreen, cellular, Bluetooth, Wi-Fi, GPS mobile navigation, camera, video camera, speech recognition, voice recorder, music player, near field communication and infrared blaster.Mobile devices with mobile communications capabilities (e.g. smartphones) contain two mobile operating systems – the main user-facing software platform is supplemented by a second low-level proprietary real-time operating system which operates the radio and other hardware. Research has shown that these low-level systems may contain a range of security vulnerabilities permitting malicious base stations to gain high levels of control over the mobile device.
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