The scheduler is the decision maker for preemptive scheduling, priority based scheduling, and real-time scheduling. Ready states are basically just waiting/idle states waiting on availability of the CPU. Once the CPU is available dispatch begins and the instructions are being executed. A thread moved from running to blocked state when an error is given to the process, when the process requests another resource, or when the process is waiting for some event to happen before it proceeds. A process is put into a blocked state if it requests something for which it must wait.
What is a system call? Answer: System call is how a program requests a service from an operating system 's kernel that it does not normally have permission to run. System calls provide the interface between a process and the operating system 5. Explain the separation of mechanism and policy in operating systems. Answer: Mechanism is the process defined for doing something, and policy is the set of rules or steps in procedure to define what to be performed.
Microsoft provides a number of these including for Active Server Page and ASP.NET. Compatibility: Internet Information Services is designed to run on Windows server operating systems. A restricted version that supports one website and a limited number of connections is also supplied with Windows XP Professional. Microsoft has likewise changed the server account that IIS keeps running on. In versions of IIS before 6.0, all the features were run on the System account, permitting exploits to run wild on the system.
If the issue was with a controller, it will be resolved at the end because all drivers will now have been replaced by drivers that are working properly with the controllers present on the motherboard of the computer. 4. Use Hotfixes Windows have many hotfixes available for USB device issues if you are a Windows 7 or Server 2008 user. You need to go to “Update Information” and select the right package according to the specific information of your operating system. The operating system will automatically install the update and you will just need to confirm the installation of the relevant fixing patch of the Windows.
In the normal TCP/IP model of network layering, this is handled on a few different layers, but usually, when we refer to an address on a network, we are talking about an IP address. IP addresses allow network resources to be reached through a network interface. If one computer wants to communicate with another computer,
If the last argument is the name of the directory, the files will be transferred to the directory. $ Mkdir mydir $ Mv f1 f2 f3 mdir 14: Deleting files $ Rm f1 $ Cp mydir / f1 f1 $ Cp mydir / f2 f2 $ Rm f1 $ Rm -i f2 15: Looking for a word or phrase in the file $ Grep root / etc / passwd $ Grep ": 0:" / etc / passwd $ Grep student / etc /
Both types of networks provide network services using operating systems that can communicate with each other through common protocols. Each of these networks enables control of how users and programs get access to resources. Also, clients in a client server network and nodes or hosts in a peer-to-peer network use any combination of desktop, mobile, or tablet operating systems. 2. Discuss the difference between a physical topology and a logical topology.
HeidelTime resources are organized in modular manner. A new resource added to the system, it automatically loaded by HeidelTime and built according to HeidelTime convention. Figure 3.1: HeidelTime’s system architecture with algorithm (source code) and resources Extraction and normalization of temporal expressions are the two major tasks for temporal
To do that you make a copy, and to do that you call the copy constructor. But to do that, we need to make a new value, so we call the copy constructor 20. Explain the programming steps necessary to make a class’s member function static. 1. Place the key word static before the member function’s prototype.
The jobtracker assigns the tasks to the tasktrackers running on many slave nodes or on a cluster of machines. The tasktrackers send messages called heartbeats regularly to the jobtracker to update the status, such as alive, idle, busy, etc. If suppose a task fails or times out, or a node is dead, the jobtracker will re-schedule the tasks to run on available nodes automatically. HDFS component consists of a single namenode and multiple datanodes. The namenode maintains the metadata about the data present on each datanode.
a. start() method is used to begin execution of the thread. b. run() method is used to begin execution of a thread before start() method in special cases. c. a thread can be formed by a class that extends Thread class. d. a thread can be formed by implementing Runnable interface
Combining views By adopting layers as the basic component of work assignment and implementation, we will combine the allocation views (implementation and work assignment) with module views (decomposition) for each stakeholder. Before the work assignment is assigned a value it is important to know which module is allocated to which layer. This way module decomposition and layers go along with each other and by making this decision it reduces three views from the system architecture. Rationale Reason behind choosing the component and connector view is to display the concurrent process execution between the system components. As we explained,system is the embedded system.
Workstations are special computers designed or technical applications and its meant to be used at one at a time how it works is that it is connected to a local area network (LAN) which is able to run multi user operating system. In terms of computer networks a server is a computer program that provides services to other computer programs which is sent to their users in the same time. Example of a work station: An example, of a server is print server is an