What Is A Operating System?

A computers operating system (OS) is the core of the computer and is more than just software. The OS controls the computer’s memory and processes as well as its hardware and software. It is the brain of the computer. Software applications on the other hand perform a certain task. Ex. Google Chrome provides internet and Adobe allows PDF files to be read (among other things). The OS is what makes all of these applications work successfully and accomplish whatever the application is designed to accomplish.

Operating systems are very important to be able to run different applications on your phone or computer etc. so you can run multiple programs at the same time, it manages internal memory, it runs the input and output of attached devices like your phone or printer by transferring data. And lastly it also enables you to run more than 1 processor at the same time by dividing the program. So as you can see operating systems are very important to improve and be able to run your PC.

The operating system is the set of instructions that direct the computer to accomplish specific tasks such as document production and spreadsheet calculations.

Microsoft Windows or Windows OS is a computer operating system developed by the Microsoft Corporation to run PCs and was introduced in 1985 and is one of the most dominate operating systems for personal computers today. Windows OS provides a graphical user interface or GUI, virtual memory management, multitasking and support for many devices. MS DOS was one of the earliest operating system for consumers. Windows was seen as a graphical user-interface or GUI that allowed users an easier and more visually pleasing way to use MS-DOS. Windows is different than other OS because they were able to have various windows operating more than one program or process simultaneously on the computer screen. Figure 2

An operating system is a considered a set of programs that schedule tasks, assign storage and presenting an interface to the user. There are many operating systems to choose from. Some are created for personal use, some for business use, and some can be used for both. One of the biggest differences is whether the operating system is open source or closed source. Operating systems are created with programming code. Programmers are responsible for writing the source code, which is compiled into executable code. This executable code is what creates the product ran on computers. An open source system is a system in which the source code is visible. A closed source system keeps the source code hidden.

An operating system (OS) is the software component of a computer system that is responsible for the management and coordination of activities and the sharing of the resources of the computer. The OS acts as a host for application programs that run on the machine. As a host, one of the purposes of an OS is to handle the details of the operation of the hardware. This relieves application programs from having to manage these details and makes it easier to write applications. Almost all computers use an OS of some type. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. The Operating System will identify at which time the CPU will perform which operation and in which Time

conditioners, toys etc., there is no need for an operating system and you can write only the

Operating systems consists of a collection of programs, with each having a specific task allocated to it. These programs are designed to make the computer system run as efficiently as possible.

As Silberschatz (2013) observation on weakness and explain the nature of MS-DOS as simple structure " Application programs are able to access the basic I/O routines to write directly to the display and disk

An operating system (OS) is a software program that enables the computer hardware to communicate and operate with the computer software. OS is the software that supports a computer 's basic functions, such as scheduling tasks, executing applications, and controlling peripherals. It is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs in computer/computer devices. The users of the computer interact with the system and application software which are installed and function in OS. Likewise for the hardware such as Keyboard, printers, mouse, CPU, registers, disks, monitors, RAM and other I/O devices to be functional they need an operating system in which their systems are embedded (fig. 1 shows the interaction)

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. The operating system is a component of the system software in a computer system. Every general-purpose computer must have an operating system to run other programs and applications. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers.

“Windows 8 is a personal computer operating system developed by Microsoft as part of the Windows NT family of operating systems.” (“Windows 10”). Windows 8 appearance looks like a bunch of colorful squares, however it can be customized. The operating system can change color schemes and the operator can organize icons to their liking. Windows 8 is managed using utilities such as Microsoft System Center. Remote installation, policy enforcement, application monitoring, and software updating are all available. Essential Applications are Microsoft Messenger, Outlook Express Word pad, Content filter and Silverlight. ("Comparative Study of Windows, Linux Ubuntu, and Unix."). Windows 8 performance when booting up and running applications is very quick and smooth.

An operating system is an interface between a user and the hardware of a computer. It is just a set of software that manages computer hardware and controls the operations on the computer. Operating system is the base of the application programs because they cannot contact the hardware directly. It does not do any work itself; it just provides an environment in which the other programs on a computer can run. Therefore, when a user enters or sends a command the operating system makes sure that the command is executed or not, if not it displays a message explaining the error. Without operating system a computer is of no use it is just a metal block.

Generally, computer components are two-fold, namely hardware and software components. The hardware requires an operating system (OS) to manage and coordinate its software resources as well as provide services for computer application programs [4]. Application programs that run in a computer require an OS. In essense, the OS acts as a central host that handles hardware operation details [4]. All computers are run by an OS of some type. Some of the most popular OS versions in the market are Linux, Windows and FreeBSD [1].

Disk Operating System (DOS) was the first operating system used by IBM computers. It was originally available in two versions “PC-DOS” and “MS-DOS”