(2006), in early years of the twenty first century there has been an huge increase in worldwide networking communications in the form of wireless as well as wired broadband connections to the internet such as customary general purpose computer systems,…
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A distributed system is structured by numerous self-directed computers that communicate throughout a computer network. In addition, the communication systems cooperate with each other to attain a common objective/goal. Moreover, a computer program that executes in a distributed system is acknowledged as a distributed program, and distributed programming is the procedure of writing similar programs (Godfrey., 2006; Bal et al., 1989).
Centralized systems are utilized today for various reason. This type of computing helps corporations store all the data in a single location, which helps them make sure everyone is working with the same information. For example, bank ATMs run over a centralized network. In this scenario, ATMs are the clients, and the large computers at the banks are the main server (Forouzan & Fegan, 2003; Nash, 2000, p.10). Hales (2007) stated that centralization can be taken as the allocation of the entire IT resources to one particular business unit that offers IT services to whole corporation. Additionally, the major characteristics of a centralized technique comprise efficiency, control and cost saving. In addition, the centralized techniques are effectual in attaining the control over a business or corporation’s information system. Moreover, a centralized system can centralized or it can be a cost saving reordering of an organization’s information systems to one particular position (Hales, 2007).
According to Wall (2001), the key advantage of centralized systems is that they offer centralized power through established technology and vendors. They therefore engage less technical risks. Additionally, the corporate information systems professionals offer extremely dependable role to maintain similar business systems. In addition, there should be no confusion over jobs as well as the software and hardware employed at the corporation. However,
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The paper will critically look at the factors motivating the adoption of distributed systems in order to evaluate the reality of a true distributed computing environment. Description of current research on the development of appropriate sub-components of distributed computer systems will then follow. This paper will present a critical evaluation on the reality of having a true distribute system.
In most implementations of MPI, a fixed set of processes is created at program initialization, and one process is created per processor. However, these processes may execute different programs. Hence, the MPI programming model is also referred to as Multiple Program Multiple Data (MPMD) programming model to distinguish it from the Single Program Multiple Data (SPMD) model in which every processor executes the same program, but on different data.
rchitecture is used by the Distributed Database Systems, whereby the database server is the Oracle software that manages the database, and the client may be an application that requests information from the database server. Each computer in this network consists of a node which
that remain constant while being transmitted over a distance while in the case of analog signals, disturbances and noise in the environment will also carry over into the signal; hence digital signals are preferred in telecommunications (Ambardar, 1999:1-2). Telecommunications
We can consider that a distributed computing system is composed of numerous self-governing machines that do not share main memory; however this system works together through transmitting data and messages over a data transfer and communication
22) points out that the design and implementation of distributed file systems faces many challenges such as caching techniques, naming service and transparency, file replication, access control and scalability considerations, and support for concurrency and
A good distributed file sharing system has designs considerations such as Untrusted storage devices; No central manager or client communication; Independent security domains; Strong mutual authentication. The system is a shared file distributed system data must be stored on the network for easier access by other clients on the network.
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