COS 318: Midterm Exam (October 23, 2012) (80 Minutes) Name:
... Yes. This is because any programs can use such instructions at any time. b. (1 point) Are the registers for I/O devices part of the context of a process? No. I/O devices are accessed via device driver calls in the kernel. c. (2 point) Can Monitors deadlock? ...
... Yes. This is because any programs can use such instructions at any time. b. (1 point) Are the registers for I/O devices part of the context of a process? No. I/O devices are accessed via device driver calls in the kernel. c. (2 point) Can Monitors deadlock? ...
Lecture Notes
... • Design/implement the process and resource manager – data structures and functions • Design/implement a driver program (shell) – command language and interpreter • Instantiate the manager to include at start-up: ...
... • Design/implement the process and resource manager – data structures and functions • Design/implement a driver program (shell) – command language and interpreter • Instantiate the manager to include at start-up: ...
Windows XP Kernel Architecture
... components residing in kernel space • Forms only small part of kernel space • Provides basic system mechanisms ...
... components residing in kernel space • Forms only small part of kernel space • Provides basic system mechanisms ...
Unix Commands
... storage, and CPU. • Multitasking (the ability for more than one application to “run” at once) is possible on new computers. ...
... storage, and CPU. • Multitasking (the ability for more than one application to “run” at once) is possible on new computers. ...
Linux Basics
... As stated before, a system call is a request of code running in user mode to have something done by the kernel running in the kernel mode. The only way to switch from user mode to kernel mode is by generating an interrupt. Therefore at booting the kernel configures a special interrupt 0x80 to do suc ...
... As stated before, a system call is a request of code running in user mode to have something done by the kernel running in the kernel mode. The only way to switch from user mode to kernel mode is by generating an interrupt. Therefore at booting the kernel configures a special interrupt 0x80 to do suc ...
CS 519 -- Operating Systems -
... sufficient size), nearest fit (chunk of sufficient size that is closest to the previous allocation for the same file) Indexed allocation (contiguous and chained allocations are other options) with file allocation table. FAT includes file names and corresponding index block numbers Use a disk all ...
... sufficient size), nearest fit (chunk of sufficient size that is closest to the previous allocation for the same file) Indexed allocation (contiguous and chained allocations are other options) with file allocation table. FAT includes file names and corresponding index block numbers Use a disk all ...
Computer Science 4302 - Angelo State University
... The student will explore the classic internal algorithms and structures of storage management and will learn a firm practical understanding of the algorithms used, their properties, advantages, and disadvantages. The student will be introduced to secondary and tertiary storage, and the student will ...
... The student will explore the classic internal algorithms and structures of storage management and will learn a firm practical understanding of the algorithms used, their properties, advantages, and disadvantages. The student will be introduced to secondary and tertiary storage, and the student will ...
Solutions 6 - UniMAP Portal
... for a long period of time—it is possible the system clock could easily lose the correct time. The system clock is also used for scheduling purposes. For example, the time quantum for a process is expressed as a number of clock ticks. At every clock interrupt, the scheduler determines if the time qua ...
... for a long period of time—it is possible the system clock could easily lose the correct time. The system clock is also used for scheduling purposes. For example, the time quantum for a process is expressed as a number of clock ticks. At every clock interrupt, the scheduler determines if the time qua ...
7 Operating Systems
... Cutler, started development of a new single-user operating system to replace MS-DOS (Microsoft Disk Operating System). Windows NT (NT standing for New Technology) was the result. Several versions of Windows NT followed and the name was changed to Windows 2000. Windows XP (XP stands for eXPerience) w ...
... Cutler, started development of a new single-user operating system to replace MS-DOS (Microsoft Disk Operating System). Windows NT (NT standing for New Technology) was the result. Several versions of Windows NT followed and the name was changed to Windows 2000. Windows XP (XP stands for eXPerience) w ...
Lecture 2 Processes and Threads
... Organizing system activities around processes has proved to be a useful way of separating out different activities into coherent units. ...
... Organizing system activities around processes has proved to be a useful way of separating out different activities into coherent units. ...
Quiz 1 - FSU Computer Science
... 44. ____ is a popular commercial application that abstracts Intel 80XXx86 hardware into isolated virtual machines. a. .NET b. JIT c. JVM d. VMware 45. True/False KDE and GNOME desktops are available under open-source licenses. 46. True/False A program written for the .NET Framework need not worry ab ...
... 44. ____ is a popular commercial application that abstracts Intel 80XXx86 hardware into isolated virtual machines. a. .NET b. JIT c. JVM d. VMware 45. True/False KDE and GNOME desktops are available under open-source licenses. 46. True/False A program written for the .NET Framework need not worry ab ...
Document
... is not so much technology. Instead, it is the set of security policies implemented and enforced. Most systems could run as true multiuser systems but it is a fact that a system used by only one user will be very akward to use if it is run like a full multi-user system with separate identities and ro ...
... is not so much technology. Instead, it is the set of security policies implemented and enforced. Most systems could run as true multiuser systems but it is a fact that a system used by only one user will be very akward to use if it is run like a full multi-user system with separate identities and ro ...
Problems - Eastern Mediterranean University
... a) ………OS………… is a program that acts as an intermediary between a user of a computer and the computer hardware. b) CPU Scheduling choose among several jobs ready to run. The system must know their exact locations in memory. c) In computer systems generally we have two communication models. With these ...
... a) ………OS………… is a program that acts as an intermediary between a user of a computer and the computer hardware. b) CPU Scheduling choose among several jobs ready to run. The system must know their exact locations in memory. c) In computer systems generally we have two communication models. With these ...
Final Exam - soe.ucsc.edu
... kept consistent and, in some cases, private in order to guarantee correct functioning and to protect data from other processes that must be protected. Thus the system calls allow user processes to request service from the kernel, service that it would not otherwise be allowed to do (for security rea ...
... kept consistent and, in some cases, private in order to guarantee correct functioning and to protect data from other processes that must be protected. Thus the system calls allow user processes to request service from the kernel, service that it would not otherwise be allowed to do (for security rea ...
Answer the following questions clearly but concisely. What is multiprogramming? 1.
... Notes: (1) You may consider the monitor is used to provide a synchronization mechanism for processes to get access to the printers under the given constraint. (2) When a process is awakened, the condition has to be checked before it is allowed to access a printer. I ...
... Notes: (1) You may consider the monitor is used to provide a synchronization mechanism for processes to get access to the printers under the given constraint. (2) When a process is awakened, the condition has to be checked before it is allowed to access a printer. I ...
CS 550 Operating Systems - James Madison University
... this assumes you know where and how to find the data. The size of modern storage devices makes doing a brute force search of the entire device infeasible. Instead, investigators must understand how computers structure data (both in memory and in storage devices) as a first step to finding the data. ...
... this assumes you know where and how to find the data. The size of modern storage devices makes doing a brute force search of the entire device infeasible. Instead, investigators must understand how computers structure data (both in memory and in storage devices) as a first step to finding the data. ...
Operating System Basics - Computer Sciences User Pages
... • PIC also connected to CPU via I/O bus • Besides the PIC, interrupts can also be generated by software instructions or errors – again, these are usually referred to as exceptions ...
... • PIC also connected to CPU via I/O bus • Besides the PIC, interrupts can also be generated by software instructions or errors – again, these are usually referred to as exceptions ...
Chapter03
... System • Non-process Kernel – Execute kernel outside of any process – Operating system code is executed as a separate entity that operates in privileged mode ...
... System • Non-process Kernel – Execute kernel outside of any process – Operating system code is executed as a separate entity that operates in privileged mode ...
Introduction to the course
... How does your computer safely keep several applications running at once? How do remote files look as though they are local? How does processing get distributed over multiple cores? How does the failure of a computing resource get handled to minimize the disruption to the wider system? What happens w ...
... How does your computer safely keep several applications running at once? How do remote files look as though they are local? How does processing get distributed over multiple cores? How does the failure of a computing resource get handled to minimize the disruption to the wider system? What happens w ...
ISA_673-android_presentation_(3) - eee
... ISA 673 Operating Systems Security Exploring the Android Platform ...
... ISA 673 Operating Systems Security Exploring the Android Platform ...
Building the Wolfson Audio drivers into the kernel on
... This guide is for medium to advanced users only as it assumes you have at least basic linux knowledge and describes the process of patching and re-compiling the kernel software on the Raspberry Pi in order to provide support for the Wolfson Audio Card. ...
... This guide is for medium to advanced users only as it assumes you have at least basic linux knowledge and describes the process of patching and re-compiling the kernel software on the Raspberry Pi in order to provide support for the Wolfson Audio Card. ...
Windows NT Operating System
... because each one resides in a separate process whose memory is protected from other processes by the NT executive’s virtual memory system. They communicate with each other by passing messages. • The NT executive is capable of supporting any number of server processes. The servers give the NT executi ...
... because each one resides in a separate process whose memory is protected from other processes by the NT executive’s virtual memory system. They communicate with each other by passing messages. • The NT executive is capable of supporting any number of server processes. The servers give the NT executi ...
OPERATING SYSTEMS DESIGN AND IMPLEMENTATION Third
... block other processes. (not busy then in) No two processes may be simultaneously inside their critical regions. (busy then wait) No process should have to wait forever to enter its critical region. (wait only limited time) No assumptions may be made about speeds or the number of CPUs. (give up CPU w ...
... block other processes. (not busy then in) No two processes may be simultaneously inside their critical regions. (busy then wait) No process should have to wait forever to enter its critical region. (wait only limited time) No assumptions may be made about speeds or the number of CPUs. (give up CPU w ...