Advantages of Distributed Operating System Distributed Operating System: A set of independent computers that are joined together, but appear to be a single computer for end user is known as distributed system. The idea behind implementing a distributed operating system is to enhance the performance and ability of a grouped system to process and respond to user actions. Management in distributed operating systems is done by implementing process scheduling activity, multiple processes, the communication and synchronization between running processes and more. The software used to couple the systems can be either tightly or loosely coupled, depending on the need and use of the distributed system’s implementation. A tightly coupled system would have all their individual and shared resources commonly accessible and available to the central system that can authorize the grant based on the need of a system. Whereas in a loosely coupled system, the computers and users are independent of each other and have a limited possibility to cooperate together. Advantages of Distributed Operating Systems Distributed operating systems contain various advantages and especially over monolithic systems and are classified into four main groups 1. Reliability 2. Resource sharing 3. Communication 4. Improved Speeds in Computation Reliability: In distributed operating system if one node fails the remaining nodes provide the system the backup needed. This results in improved reliability and can continue the operation. The enhanced availability of resources can make the distributed system to use multiple communication paths and use redundant resources. The security in these system provide protection against any unauthorized access and prev... ... middle of paper ... ... resource is accessed Location Hide where a resource is located Migration Hide that a resource may move to another location Relocation Hide that a resource may be moved to another location while in use Replication Hide that a resource is replicated Concurrency Hide that a resource may be shared by several competitive users Failure Hide the failure and recovery of a resource References: Silberschatz, A., Galvin, P. B., & Gagne, G. (2005). Operating System Concepts (8th Ed.). Hoboken, NJ: John Wiley & Sons, Inc. Yu, Tong Lai (March 2010). "An Introduction to Distributed Systems." Operating Systems Concepts and Theory. Retrieved from: http://cse.csusb.edu/tong/courses/cs660/notes/chap1.php Dinesh Thakurr (February 2014). Distributed system advantages. Retrieved from: http://ecomputernotes.com/fundamental/disk-operating-system/distributed-operating-system
The Operating System (OS) is the heart of computer server and client systems; therefore they are the pivotal components of the Information Technology (IT) architecture. The OS contains the crucial data, information, and applications, which are vulnerable, and can be infiltrated to cripple the entire IT architecture of the organization. Therefore, it becomes mandatory to properly safeguard the OS from an internal or external intrusion (Stallings & Brown, 2012). This critical thinking report will highlight the security concerns that may impact the OS. Further, the security guidelines and best practices for the OS in general, along with the specific fundamentals regarding the Windows and Linux OS are comprehensively illustrated.
Microsoft, the leading manufacturer of personal computer software with its windows based operating systems and application software, has decided to expand its influence beyond windows into the Linux freeware operating system world. The means for entry into this rapidly growing segment of the server operating system market is through a takeover of the Red Hat Linux Company. Currently Microsoft Corporation now owns 51% of the stock for Red Hat Linux. This expansion directly into the Linux arena will provide Microsoft with the ability to attack competitors in the network server market with the Windows NT and Windows 2000 operating systems on one flank and with the extremely stable Linux operating system on the other flank. Microsoft expects to use this one-two punch to significantly gain market share in the server market and to shape the future of business LANs, WANs and the internet. Additionally, Microsoft expects to gain a controlling market share of the Linux office application suite wit...
Parsons, June J. and Oja, Dan. Computer Concepts 8th Edition. United States: Course Technology, 2006.
Not long ago computers were non-existent in many homes. When computers were first introduced to the world, they were for the sole purpose of performing business functions. The only people who owned computers were large organizations. Eventually, computers were introduced into the homes of those who could afford to buy them. Today, just about everyone owns some form of system that they use daily to help manage their day-to-day operations. What many once survived without now seems impossible to do without. As technology continues to grow, it has a greater effect on families and the education system. Some companies such as Microsoft and Apple made it possible to reinvent a new form of technology that would change the world. Each company had some form of struggle and overtime had to keep up with the changes of time and the way people communicated. From the first day of its invention, organizations have had to steadily implement new operating systems to keep up with the demands of the people while staying afloat with competitors. The ways of life for many have changed as well as the way people communicate. It is evident that the history and uses of computers have changed the world but these computers could not perform without the operating systems. Various operating systems will be discussed, how they began and how they each changed since they were first introduced. Although, they all had a purpose each varied in how they performed and changed the lives of many and will continue in the near future.
As the internet is becoming faster and faster, an operating system (OS) is needed to manage the data in computers. An Operating system can be considered to be a set of programed codes that are created to control hardware such as computers. In 1985 Windows was established as an operating system and a year earlier Mac OS was established, and they have dominated the market of the computer programs since that time. Although, many companies have provided other operating systems, most users still prefer Mac as the most secured system and windows as it provides more multiple functions. This essay will demonstrate the differences between windows
All application do not have same level of availability. However, for those application that need high availability, all of the relevant components of the IT infrastructure have to be tuned to the same relative level of protection. Otherwise, a weakest-link-in-the-chain problem exists.
Kleinjohann, B. (2001). Architecture and Design of Distributed Embedded Systems: IFIP WG10.3/WG10.4/WG10.5 International Workshop on Distributed and Parallel Embedded Systems (DIPES 2000) October 18-19, 2000, Schloﾀ Eringerfeld, Germany. Boston, MA: Springer US.
It all began in 1991, during the time of monumental computing development. DOS had been bought from a Seattle hacker by Bill Gates, for a sum of $50,000 – a small price for an operating system that had managed sneak its way across the globe due to a clever marketing strategy. Apple’s OS and UNIX were both available, though the cost of running either was far greater than that of running DOS. Enter MINIX, an operating system developed from the ground up by Andrew S. Tanenbaum, a college professor. MINIX was part of a lesson plan used to teach students the inner-workings of an operating system. Tanenbaum had written a book on MINIX called “Operating System” and anyone who had picked up a copy would find the 12,000 lines of code that comprised MINIX itself. This was a big issue; due to the fact that all know (well published) operating systems to that point had been well guarded by software developers, thus making it difficult for people to truly expand on operating system mechanics.
Haddad, I. & Petersen, R. (2004). Getting Started with Red Hat Linux. Retrieved from http://linux.sys-con.com/node/45264
In the Information Technology world, virtualization means using software to emulate a system by separating a resource or request for a service from the underlying physical delivery of that service. In layman term, Virtualization is a technology that allows multiple operating systems to run on a single physical machine at the same time. This research paper briefly focusses on two categories of virtualization: hardware, and storage, while identify some of the benefits.
It simplifies the storage and processing of large amounts of data, eases the deployment and operation of large-scale global products and services, and automates much of the administration of large-scale clusters of computers.
Watson, J. (2008). A history of computer operating systems (pp. 14-17). Ann Arbor, MI: Nimble Books.
Operating system design goals and requirements are divided into two groups. What are these two groups?
An Operating system is system software that controls the system’s hardware that interacts with users and the application software. As we all may know, Windows Microsoft has always been a commercial high-level sale in the retail industry and an in domain operating system used today. But there are more operating systems than just Windows Microsoft than the general population may assume. Linux is another well-known operating systems, which is free and open-source software. Linux is also used in companies we would have never thought of like Google, NASA, USPS, Amazon and many more companies. Linux and Microsoft operating systems have been in competition to see which one is the best operating system in the market. There are so many resemblances
Linux is a Unix clone written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. It aims towards POSIX compliance. It has all the features expected in a modern fully-fledged Unix, including true multitasking, virtual memory, shared libraries, demand loading, shared copy-on-write executables, proper memory management and TCP/IP networking.