Essay on Explain the Purpose of an Operating System

1117 Words5 Pages
Explain the purpose of an operating system Process Management A multitasking operating system may give the appearance that a lot of processes are running concurrently/simultaneously, this is not true as only one process can be executing at any one time on a single-core CPU, unless on a multi-core or similar technology. Processes are often called tasks in embedded operating systems. The function of the task or process is something that takes up time, as opposed to memory, which is 'something that takes up space or capacity For security and reliability reasons most modern operating systems prevent direct communication between independent processes, providing strictly mediated and controlled inter-process communication functionality.…show more content…
Ethernet, that allows sharing of resources and information. -Using a network, people can communicate efficiently and easily via e-mail, instant messaging, chat rooms, telephony, video telephone calls, and videoconferencing. -In a networked environment, each computer on a network can access and use hardware on the network. Suppose several personal computers on a network each require the use of a printer. If the personal computers and a laser printer are connected to a network, each user can then access the laser printer on the network, as they need it. -In a network environment, any authorized user can access data and information stored on other computers on the network. The capability of providing access to data and information on shared storage devices is an important feature of many networks. -Users connected to a network can access application on the network. Security The on-going and excessive practice of protection for the confidentiality and honesty of information and system resources so that an unauthorized user has to spend an unacceptable amount of time or money or absorb too much risk in order to defeat it, with the ultimate goal that the system can be trusted with sensitive information. Other It provides a very stable and rigid way for apps to deal with the hardware without having to know everything about it. But not anyone person can know everything
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