Design a Mini-Operating System for Mobile Phone
... data is never lost and the device running the operating system will never have to be rebooted. Approximately 72% of mobile devices use Symbian and major mobile companies adopt this operating system in their manufacturing including Nokia and Sony Erickson. The reason is the wide choices for the progr ...
... data is never lost and the device running the operating system will never have to be rebooted. Approximately 72% of mobile devices use Symbian and major mobile companies adopt this operating system in their manufacturing including Nokia and Sony Erickson. The reason is the wide choices for the progr ...
Identify and describe the functions of different operating systems
... acceptability until the release of Windows 3.1 in 1992. Network capability was added to a new version called Windows for Workgroups later on in the same year. Used a GUI interface and supports Multi User/Multi Tasking capabilities. Current standard version for the home computer is Windows XP. ...
... acceptability until the release of Windows 3.1 in 1992. Network capability was added to a new version called Windows for Workgroups later on in the same year. Used a GUI interface and supports Multi User/Multi Tasking capabilities. Current standard version for the home computer is Windows XP. ...
Assignment 2 description. - School of Computer Science Student
... These are the include files that the kernel needs. The kern subdirectory contains include files that are visible not only to the operating system itself, but also to user-level programs. (Think about why it’s named “kern” and where the files end up when installed.) In kern/lib These are library rout ...
... These are the include files that the kernel needs. The kern subdirectory contains include files that are visible not only to the operating system itself, but also to user-level programs. (Think about why it’s named “kern” and where the files end up when installed.) In kern/lib These are library rout ...
ppt - METU
... Hold and wait: a process holding at least one resource is waiting to acquire additional resources held by other processes. No preemption: a resource can be released only voluntarily by the process holding it, after that process has completed its task. Circular wait: there exists a set {P0, P1, …, P0 ...
... Hold and wait: a process holding at least one resource is waiting to acquire additional resources held by other processes. No preemption: a resource can be released only voluntarily by the process holding it, after that process has completed its task. Circular wait: there exists a set {P0, P1, …, P0 ...
What is Operating System, Kernel and Types of kernels
... some basic services like device driver management, protocol stack, file system etc to run in user space. This reduces the kernel code size and also increases the security and stability of OS as we have the bare minimum code running in kernel. So, if suppose a basic service like network service crash ...
... some basic services like device driver management, protocol stack, file system etc to run in user space. This reduces the kernel code size and also increases the security and stability of OS as we have the bare minimum code running in kernel. So, if suppose a basic service like network service crash ...
operating system design
... Since multiple users can be logged into a computer at the same time, the operating system needs to provide mechanisms to keep them separated. One user may not interfere with another. The process concept is widely used to group resources together for protection purposes. Files and other data structur ...
... Since multiple users can be logged into a computer at the same time, the operating system needs to provide mechanisms to keep them separated. One user may not interfere with another. The process concept is widely used to group resources together for protection purposes. Files and other data structur ...
Advanced Operating Systems
... Dynamic allocation of pages to processes: Since the “new-style” processes (loaded from disk) are not “compiled-in” (as were all previous “processes”), it became necessary to do dynamic allocation of primary memory for these. Structures to keep track of page usage, and to allocate and free physical p ...
... Dynamic allocation of pages to processes: Since the “new-style” processes (loaded from disk) are not “compiled-in” (as were all previous “processes”), it became necessary to do dynamic allocation of primary memory for these. Structures to keep track of page usage, and to allocate and free physical p ...
PowerPoint
... z It allows a process to make use of any available multiprocessor hardware on any system it is run on. z It allows programmers to structure their code into independently executable units and maximize concurrency. z Threads reduce the need to use fork to create child processes, thus improving each pr ...
... z It allows a process to make use of any available multiprocessor hardware on any system it is run on. z It allows programmers to structure their code into independently executable units and maximize concurrency. z Threads reduce the need to use fork to create child processes, thus improving each pr ...
Mutual Exclusion and Synchronization
... – Applicable to any number of processes on a single processor – Processes on multiple processors? • as long as processors share main memory ...
... – Applicable to any number of processes on a single processor – Processes on multiple processors? • as long as processors share main memory ...
Operating System
... 1. Single-user, dedicated. Previously thought as individuals have sole use of computer, do not need advanced CPU utilization, protection features (see Fig. 1.3). 2. Not still true. May run several different types of OS (Windows, Mac OS X, UNIX, and Linux) which offer multitasking and virtual memory ...
... 1. Single-user, dedicated. Previously thought as individuals have sole use of computer, do not need advanced CPU utilization, protection features (see Fig. 1.3). 2. Not still true. May run several different types of OS (Windows, Mac OS X, UNIX, and Linux) which offer multitasking and virtual memory ...
Week 0, Introduction
... sharing: how are resources shared across users? 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 happen ...
... sharing: how are resources shared across users? 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 happen ...
1. Introduction
... Abstracts physical properties to logical storage unit - file Access control on most systems to determine who can access what Each medium is controlled by device (i.e., disk drive, tape drive) ...
... Abstracts physical properties to logical storage unit - file Access control on most systems to determine who can access what Each medium is controlled by device (i.e., disk drive, tape drive) ...
The Nizza Secure-System Architecture
... present a practical problem and a solution based on the mechanisms of Nizza. People use commodity applications such as Mozilla Thunderbird for daily email communication. To provide a proof of the integrity of an email, a growing number of users sign their emails with the signing key as a credential. ...
... present a practical problem and a solution based on the mechanisms of Nizza. People use commodity applications such as Mozilla Thunderbird for daily email communication. To provide a proof of the integrity of an email, a growing number of users sign their emails with the signing key as a credential. ...
Threads
... • When a traditional, single-threaded program requests a service from the operating system, it must wait for that service to complete, often leaving the CPU idle • Multithreading provides progress even though one or more threads wait for an event as long as other threads are active Ceng 334 - Operat ...
... • When a traditional, single-threaded program requests a service from the operating system, it must wait for that service to complete, often leaving the CPU idle • Multithreading provides progress even though one or more threads wait for an event as long as other threads are active Ceng 334 - Operat ...
Introduction
... reservations, games, payroll etc. (automated information processing and exchange) • System Software : Independent of applications, but common to all: OS, DBMS, compilers, editors , C library functions, window system, etc. CSE 331 Operating Systems Design ...
... reservations, games, payroll etc. (automated information processing and exchange) • System Software : Independent of applications, but common to all: OS, DBMS, compilers, editors , C library functions, window system, etc. CSE 331 Operating Systems Design ...
I/O Systems 2.
... If device can serve only one request at a time i.e., Printing Device reservation - provides exclusive access to a ...
... If device can serve only one request at a time i.e., Printing Device reservation - provides exclusive access to a ...
Chapter 3: Operating-System Structures Common System
... secondary storage to back up main memory. ■ Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. ■ The operating system is responsible for the following activities in connection with disk management: ✦ Free space management ✦ Storage allocation ...
... secondary storage to back up main memory. ■ Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. ■ The operating system is responsible for the following activities in connection with disk management: ✦ Free space management ✦ Storage allocation ...
View
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
Module 3: Operating
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
TOTALVIEW CHANGE LOG - Rogue Wave Software
... Scalability, performance, and reduced startup times have also been implemented for memory debugging. At very large scales, focusing on a single process is likely to result in the greatest improvements. ...
... Scalability, performance, and reduced startup times have also been implemented for memory debugging. At very large scales, focusing on a single process is likely to result in the greatest improvements. ...
Writing Web Pages
... Multiprocessor Systems Distributed Systems Clustered Systems Real-time Systems Handheld Systems ...
... Multiprocessor Systems Distributed Systems Clustered Systems Real-time Systems Handheld Systems ...