Explain the purpose of an operating

Command-Line A command-line interface is a text based user interface that is navigated using prompts and text based commands entered by the user with a keyboard. The keyboard is the only input device that can be used with a command-line interface whereas a graphical user interface would use a mouse as well. Command-line is the more difficult of the two interfaces to learn as it uses commands unique to both the CLI environment and the operating system — this can mean that there are dozens of commands that the user must memorise.

Explain the purpose of an operating

DOS - disk operating system The operating system OS is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs and applications.

Computer operating systems perform basic tasks, such as recognizing input from the keyboardsending output to the display screen, keeping track of files and directories on the storage drives, and controlling peripheral devicessuch as printers. For large systems, the operating system has even greater responsibilities and powers.

It is like a traffic cop — it makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for securityensuring that unauthorized users do not access the system.

A Software Platform for Applications Operating systems provide a software platform on top of which other programs, called application programs, can run. The application programs must be written to run on top of a particular operating system. Your choice of operating system, therefore, determines to a great extent the applications you can run.

Allows two or more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users. Supports running a program on more than one CPU.

Allows more than one program to run concurrently.

Explain the purpose of an operating

Allows different parts of a single program to run concurrently. Responds to input instantly. User Interaction With the OS As a user, you normally interact with the operating system through a set of commands.

The commands are accepted and executed by a part of the operating system called the command processor or command line interpreter. Graphical user interfaces allow you to enter commands by pointing and clicking at objects that appear on the screen.

Most Popular Desktop Operating Systems The three most popular types of operating systems for personal and business computing include Linux, Windows and Mac. Windows Microsoft Windows is a family of operating systems for personal and business computers.

Windows dominates the personal computer world, offering a graphical user interface GUIvirtual memory management, multitasking, and support for many peripheral devices. Mac OS features a graphical user interface GUI that utilizes windows, icons, and all applications that run on a Macintosh computer have a similar user interface.

Linux Linux is a freely distributed open source operating system that runs on a number of hardware platforms. The Linux kernel was developed mainly by Linus Torvalds and it is based on Unix.Nov 22,  · An operating system is the framework that allows you to communicate with computer hardware in an interactive way.

Without this, you would not be . Microsoft Windows serves as the core of most of desktop and laptop computers, with around 90 percent running some version of the operating system. At its most .

Nov 24,  · An Operating System is software that manages computer’s software and hardware. It is settled between the BIOS and the application software so it can control what hardware resources are being used such as: Memory CPU time Disk space Peripheral devices Why.

Operating systems have been developed over the past 40 years for the two main purposes. 1) OS attempt to schedule computational activities to ensure the good performance of .

P2 – Explain the Purpose of an Operating System | Extended DIploma in IT – Gytis

The operating system mainly divided into two such as application software and operating system heartoftexashop.comation software are the different task such creating s/w for banking, customer query, creating website etc. the operating system software duty is to manage the task which the application software provides.

Operating system these computers have benefited from the development of the operating system for mainframe in several ways. However since individual have sole use of the computer, CPU utilization is no longer a prime concern.

The Purpose of Operating Systems - How Mac OS X Works | HowStuffWorks