Forensics Book 2: Investigating Hard Disk and File and Operating
... BootX attempts to decode the file as a Mach-O binary If the above fails, BootX gives up, draws the failed boot picture, and goes into an infinite loop If BootX is successful so far, it saves file system cache hits, misses, and evicts; sets up various boot arguments and values; and also calls a ...
... BootX attempts to decode the file as a Mach-O binary If the above fails, BootX gives up, draws the failed boot picture, and goes into an infinite loop If BootX is successful so far, it saves file system cache hits, misses, and evicts; sets up various boot arguments and values; and also calls a ...
slides-6
... To examine several classical process-synchronization problems To explore several tools that are used to solve process ...
... To examine several classical process-synchronization problems To explore several tools that are used to solve process ...
What is an Operating System?
... clustering has multiple nodes running applications, monitoring each other ...
... clustering has multiple nodes running applications, monitoring each other ...
Embedded Operating Systems and Linux
... • An embedded OS is an operating system which runs on any embedded platform. • Embedded platforms are generally required to function without human intervention. • A typical embedded system consists of a single-board microcomputer or SOC with an OS and some software loaded in ROM. • It will not usual ...
... • An embedded OS is an operating system which runs on any embedded platform. • Embedded platforms are generally required to function without human intervention. • A typical embedded system consists of a single-board microcomputer or SOC with an OS and some software loaded in ROM. • It will not usual ...
Document
... Each process is represented in the operating system by a process control block: i. Process State—represents the state of process ii. Program Counter—indicates the address of next instruction to be executed iii. CPU registers—includes contents of all processcentric registers iv. CPU scheduling algori ...
... Each process is represented in the operating system by a process control block: i. Process State—represents the state of process ii. Program Counter—indicates the address of next instruction to be executed iii. CPU registers—includes contents of all processcentric registers iv. CPU scheduling algori ...
O ti S t O ti S t Operating Systems Chapter 1
... I/O devices and the CPU can execute concurrently. Each device controller is in charge of a particular device type. ...
... I/O devices and the CPU can execute concurrently. Each device controller is in charge of a particular device type. ...
Distributed real-time operating system (DRTOS) modeling in SpecC
... Operating systems provide a layer of abstraction between the user and the bare machine. Users and applications do not see the hardware directly, but view it through operating systems. There are many types of operating systems, and their complexity varies depending upon what types of functions are pr ...
... Operating systems provide a layer of abstraction between the user and the bare machine. Users and applications do not see the hardware directly, but view it through operating systems. There are many types of operating systems, and their complexity varies depending upon what types of functions are pr ...
Virtualization Explained:
... successful virtualization. The VMM manages multiple instances of an operating system and switches instances so that each virtual machine can access the underlying processor, memory and local disk resources. It uses emulation to share the computing resources while keeping each of the virtual machines ...
... successful virtualization. The VMM manages multiple instances of an operating system and switches instances so that each virtual machine can access the underlying processor, memory and local disk resources. It uses emulation to share the computing resources while keeping each of the virtual machines ...
A user-mode port of the Linux kernel
... A basic design decision is that this port will directly run the host's unmodied user space. If processes are going to run exactly the same way in a virtual machine as in the host, then their system calls need to be intercepted and executed in the virtual kernel. This is because those processes are ...
... A basic design decision is that this port will directly run the host's unmodied user space. If processes are going to run exactly the same way in a virtual machine as in the host, then their system calls need to be intercepted and executed in the virtual kernel. This is because those processes are ...
Optimizing the Migration of Virtual Computers
... few advantages: It allows multiple users with different requirements to use the same machine, e.g. machines in a classroom may contain different capsules for different classes. Also, users can use the same machine to run different capsules for different tasks. They can have a single customized capsu ...
... few advantages: It allows multiple users with different requirements to use the same machine, e.g. machines in a classroom may contain different capsules for different classes. Also, users can use the same machine to run different capsules for different tasks. They can have a single customized capsu ...
Multithreaded Programming
... To examine issues related to multithreaded programming To cover operating system support for threads in Windows and Linux ...
... To examine issues related to multithreaded programming To cover operating system support for threads in Windows and Linux ...
Process Management - Computer Science
... When an event of interest occurs, the kernel handles the event first, then modifies the process‘ stack to look as if the process’ code made a procedure call to the signal handler. When the user process is scheduled next, it executes the handler first From the handler, the user process returns to whe ...
... When an event of interest occurs, the kernel handles the event first, then modifies the process‘ stack to look as if the process’ code made a procedure call to the signal handler. When the user process is scheduled next, it executes the handler first From the handler, the user process returns to whe ...
Proceedings of the 5th Symposium on Operating Systems Design and Implementation USENIX Association
... few advantages: It allows multiple users with different requirements to use the same machine, e.g. machines in a classroom may contain different capsules for different classes. Also, users can use the same machine to run different capsules for different tasks. They can have a single customized capsu ...
... few advantages: It allows multiple users with different requirements to use the same machine, e.g. machines in a classroom may contain different capsules for different classes. Also, users can use the same machine to run different capsules for different tasks. They can have a single customized capsu ...
bca502 : core – 19 : operating systems
... Answer: c 48) A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called : a) data consistency b) race condition c) aging d) starvation Answer: b 49) In the bakery algori ...
... Answer: c 48) A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called : a) data consistency b) race condition c) aging d) starvation Answer: b 49) In the bakery algori ...
Deadlocks
... Requesti = request vector for process Pi. If Requesti [j] = k then process Pi wants k instances of resource type Rj 1. If Requesti Needi go to step 2. Otherwise, raise error condition, since process has exceeded its maximum claim 2. If Requesti Available, go to step 3. Otherwise Pi must wait, si ...
... Requesti = request vector for process Pi. If Requesti [j] = k then process Pi wants k instances of resource type Rj 1. If Requesti Needi go to step 2. Otherwise, raise error condition, since process has exceeded its maximum claim 2. If Requesti Available, go to step 3. Otherwise Pi must wait, si ...
Linux Operations and Administration
... • Summarize the functions of an operating system • Identify key historical points in the development of Linux • Explain the components of the Linux architecture and features of the operating system ...
... • Summarize the functions of an operating system • Identify key historical points in the development of Linux • Explain the components of the Linux architecture and features of the operating system ...
Nachos OS
... threads. Fork() allocates a stack for the thread which invokes it, and adds it to the ready list maintained by the scheduler (see scheduler.cc in code/threads ). "somefunction" is the name of the function that the thread will execute upon occupying the CPU. 0 is the argument to that function. The ro ...
... threads. Fork() allocates a stack for the thread which invokes it, and adds it to the ready list maintained by the scheduler (see scheduler.cc in code/threads ). "somefunction" is the name of the function that the thread will execute upon occupying the CPU. 0 is the argument to that function. The ro ...
Virtual Machine Monitors - Computer Sciences User Pages
... doesn’t really know how to handle the call; after all, it does not know the details of each OS that is running and therefore does not know what each call should do. What the VMM does know, however, is where the OS’s trap handler is. It knows this because when the OS booted up, it tried to install it ...
... doesn’t really know how to handle the call; after all, it does not know the details of each OS that is running and therefore does not know what each call should do. What the VMM does know, however, is where the OS’s trap handler is. It knows this because when the OS booted up, it tried to install it ...
FM V21.0 Install Guide
... M/SQL DSM for OpenVMS MSM DTM-PC GT.M(VAX) If you are using another version of MUMPS or if your version does not support the ZLOAD and ZSAVE commands, you cannot use DINZMGR. The next section describes how to accomplish DINZMGR's tasks manually. ...
... M/SQL DSM for OpenVMS MSM DTM-PC GT.M(VAX) If you are using another version of MUMPS or if your version does not support the ZLOAD and ZSAVE commands, you cannot use DINZMGR. The next section describes how to accomplish DINZMGR's tasks manually. ...
chubby and paxos
... P2- If a proposal with value v is chosen, then every higher numbered proposal that is chosen has value v P2a- If a proposal with value v is chosen, then every higher accepted by any proposer has value v P2b- If a proposal with value v is chosen, then every higher accepted by any proposer has value v ...
... P2- If a proposal with value v is chosen, then every higher numbered proposal that is chosen has value v P2a- If a proposal with value v is chosen, then every higher accepted by any proposer has value v P2b- If a proposal with value v is chosen, then every higher accepted by any proposer has value v ...
Multiuser Systems
... 2. However, microkernel operating systems might have some theoretical advantages over monolithic ones. Microkernels force the system programmers to adopt a modularized approach, because each operating system layer is a relatively independent program that must interact with the other layers through w ...
... 2. However, microkernel operating systems might have some theoretical advantages over monolithic ones. Microkernels force the system programmers to adopt a modularized approach, because each operating system layer is a relatively independent program that must interact with the other layers through w ...
STUDY GUIDE FOR THE MIDTERM EXAM of Tuesday November 3
... One or more CPUs, device controllers connect through common bus providing access to shared memory ...
... One or more CPUs, device controllers connect through common bus providing access to shared memory ...
Section B MCA 404-AOS
... it is executing and saves the address of the next instruction (Program Counter (PC)) on the stack. It also saves the current status of all the interrupts internally (ie not on the stack). It jumps to a fixed location in memory in accordance with the Interrupt Vector Table. If the ISR is only one or ...
... it is executing and saves the address of the next instruction (Program Counter (PC)) on the stack. It also saves the current status of all the interrupts internally (ie not on the stack). It jumps to a fixed location in memory in accordance with the Interrupt Vector Table. If the ISR is only one or ...