...Abbreviated as OS, it is a powerful, and usually large, program that controls and manages the hardware and other software on a computer. Every general-purpose computer must have an operating system to run other programs. Operating systems perform basic tasks, such as recognizing inputfrom the keyboard, sending output to the display screen, keeping track of filesand directories on the disk, and controlling peripheral devices such as disk drives and 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 andusers running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems can be classified as follows: Multi-user: Allows two or more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users. Multiprocessing : Supports running a program on more than oneCPU. Multitasking : Allows more than one program to run concurrently. Multithreading : Allows different parts of a single program to run concurrently. Real time: Responds to input instantly. General-purpose operating systems, such as DOS and UNIX, are not real-time. The major functions of an OS are: -resource management, -data management, -job (task) management, and -standard means of communication between user and...
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...The Purpose and Functions of an Operating System Jaclyn Lacey NT1110 Thursday Evening Module 1 Short Answer Mr. Kelly The Purpose and Functions of an Operating System An OS (operating system) of a computer is necessary for ease of use, managing data and to interact with Input/output devices. It has 5 key functions; Boot the computer, Manage input and output devices, provide a GUI (graphical user interface) for user friendliness, manage system resources and manage data. There are three major Operating Systems. They are Windows, Linux and Mac OS. The Windows Operating System is the most user friendly operating system. It is used by many companies in a business setting as well as by others in home setting. It is the Operating System of choice for most computer gamers. As well as the geeky programmer type. It incorporates many applications such as a web browser, command line interface, word processor and file managing. It stores files in libraries that make it easy to find your files. It has had many versions the most commonly used today are Windows XP, Windows 7 and Windows 8. Windows 95 was the first of the Windows OS’s all in one operating system and GUI. Linux is another Operating System. It is made to run on personal computers, gaming consoles, DVR’s, mobile phones and many other devices. About 1-2% of the US population uses the Linux OS. It can be freely downloaded by anyone. It is for the super geek programmer who may change the code writing...
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...----- 6-20-2016NT1110_______Module1_Lab.doc Describe the purpose and functions of an operating system. The purpose of an operating system is to guide a computer or network in the performance of its tasks, assists the programs with certain supporting functions and increases the usefulness of the computer or network hardware. The functions of an operating system are to handle the interface to peripheral hardware, schedules tasks, allocates storage and presents a default interface to the user when no application program is running. Explain at least 5 differences among Windows, Linux and Mac OS X operating systems. Windows 1. Most commonly used OS on client computers. 2. All-in-one OS/GUI 3. Uses Internet Explorer web browser. 4. Incorporates many applications for end-user including word pad, command prompt and windows explorer. 5. Developers focus most on compiling programs that run efficiently on Windows. Linux 1. Has a larger market share when it comes to servers and other computer devices. 2. Option of using GNOME or KDE GUI’s. 3. Free to download but licensed under GPL. 4. Apps are meant to run on various Linux platforms but can also be compiled to run in Windows and Mac OS X. 5. KDE is a more powerful environment that includes a web browser called Konqueror. Mac OS X 1. Is not compatible with PC hardware. 2. Is not compatible with PC-based OS (Windows and Linux) 3. Uses anti-aliasing technologies. 4. Uses color sync technologies. 5. Uses drop shadow...
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...The Purpose and Functions of an Operating System What is an operating system? Why does my computer need one? Well, in one quick statement, the operating system allows you to give commands to your computer’s hardware; but it is a lot more complicated than that. The OS acts as a translator, translating commands you make, as well as, commands of applications that you use into numbers that the computer can understand. Without the OS your computer is virtually useless. Windows, Mac OS, and Linux, “What is the difference?” you may be asking. Well there are several differences. I guess the best way to show you the differences would be to start with windows (since it is the most well-known). Windows is the most popular operating system on the planet. Computer Science and Logic, First Edition says, “It is estimated that up to 90% of client computers use one of the various Windows versions.” That is a huge percentage of the market, which is why there are so many third party applications for Windows. Windows uses several end-user applications; for instance Internet Explorer is used to surf the web. Windows also uses command prompt for command-line interface, and it uses WordPad for a word processor. Windows is a little expensive if you buy just the software; however, it comes included on most lap tops and PCs. Now moving on to Mac OS, where windows controls an estimated 90% of the market, it is estimated that no more than 10% of the US population use Mac OS. Also, Applications...
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...The Purpose and Functions of an Operating System The purpose of the Operating System is to act as an intermediary between both you – user of the computer – and the hardware or application to perform any function. Whatever the task may be, you just need to enter the instructions for performing a specific task and the computer does it for you. The functions of an Operating System are: • Booting the computer • Managing input and output devices • Providing a GUI (Graphical User Interface) to create a user friendly environment • Managing system resources • Managing data Differences among Windows, Linux, and Mac OS X operating systems are: The Mac OS is the proprietary operating system used by Apple for their Macintosh computers. This operating system has been a favorite of multimedia designers, graphic artists, and musicians since the 1990s. Not more than 10% of the U.S. population uses the Mac OS. Mac OS uses its own web browser named Safari as opposed to Internet Explorer. Linux is an ever-expanding group of operating systems that are similar to Unix in their design. Linux was designed as an alternative operating system to Windows.However Linux has a much larger market share when it comes to servers and other computer devices. The command-line functionality in most Linux distributions is in-depth and well documented, allowing a user to configure, and troubleshoot, just about anything from within the “shell”...
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...The purpose and function of an operating system is, to manage software that manages the computer hardware and software resources. It also provides common services for the computer programs, an operating system is a vital part of a computer system, and most applications require an operating system. An operating system acts as a middle component between the applications and you the person who is using it, and the hardware or applications that are trying to perform any function. An operating systems starts when, you first turn on your computer and ends when you turn your computer off. Some of the functions of an operating system are, booting your computer up, an operating system manages input and output devices that you are using on your computer. An operating system also provides a graphical user interface to create a user- friendly environment for the person who is running the operating system. An operating system also manages system resources and manages data. One difference among Windows, Linux, and Mac OS X operating systems is, Mac OS X operating system is, Mac OS is the operating system used by apple for their Macintosh computers. Mac OS has an Intel processors however, it is not compatible with regular PC-hardware and PC- based operating systems, such as windows or Linux. A second difference among Windows, Linux, and Mac OS X operating system is, Linux is an open source program that is ever expanding. This means anyone is able to change it if they have the knowledge...
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...cxchiang@ualr.edu EZ Inventory Management System 1. Introduction 1. Purpose 2. Scope 3. Definitions, acronyms, and abbreviations 4. References 5. Overview 2. Overall description 1. Product perspective 2. Product functions 3. User characteristics 4. Constraints 5. Assumptions and dependencies 3. Specific Requirements 1. Functional Requirement 2. External Interface Requirement 3. Performance Requirements 4. Design Constraints 5. Software System Attributes 1. Introduction 1.1 Purpose The purpose of this document is to provide the specifications for the software which is to be developed. The purpose of the EZ Inventory Management Systems (EZIMS), is to provide the customer with an effective way to manage their current inventory and provide a history of previous inventory. 1.2 Scope The software product to be produced is called EZ Inventory Management System (EZIMS). This program is to be a standalone executable which provides an interface to an inventory database. The program is easy to use, so that users can easily add and remove inventory as necessary. 1.3 Definitions, Acronyms and Abbreiviations DBMS – Database Management System GUI – Graphical User Interface IEEE – Institute of Electrical and Electronics Engineers OS – Operating System SRS – Software Requirements Specification SQL – Server Query Language 1...
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...The purpose of an operating system is to make the computer work. The (OS) operating system software enables the user to interact with the system or the computer. The operating system manages the different devices connected to the systems like a mouse or keyboard. The operating system provides a user interface to the machine and offers a way for a user to control the system. No computer can operate without an operating system. The functions of an operating system are to manage the main components of a computer and act as a user interface for the computers hardware. The operating system is responsible for performing activities like: providing a user interface, performing common hardware functions, manages the memory and manages processing task. In conclusion, the operating system is responsible for providing users with an interface that allow them to communicate directions in order to perform specified task on a computer. The operating systems help the above process by managing the hardware functions, where it converts simple directions into detailed instructions, which the computer can interpret or understand. The operating system also manages the memory and processing tasks of the computer. This allows the user or users to store data and run more then one application at a time. Now, we’re going to discuss five differences among Windows, Linus, and Mac OS X operating systems. Windows is one of the most popular and well-known operating systems made by Microsoft. They say Window’s...
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...into what is known today as Windows, Linux, and the Mac OS X. But what makes these great machines operate? What is their purpose? What are their functions? Multimedia designers, graphic artists, and musicians would argue that the Mac OS X is superior. Gamers, programmers, and businesses might prefer Linux. The average household would say that Windows is the way to go. This being said, we will look into what makes each of these systems differ from one another and look at the pros and cons of each. To get an understanding of the different operating systems we need to understand the actual meaning of an operating system. The definition of an operating system is a collection of software that coordinates and provides common services for computer programs. Without the operating system, the computer and software would be useless. With a better understanding of what an operating system is, we can now look at the operating systems purpose or functionality. An important function of the operating system is resource management. This means monitoring the central processing unit, memory, disk drives, and printers. It also provides a user interface. The operating system manages input/output devices such as your mouse, keyboard, and printer. Helps with file management; acts as middle man between the computer hardware and the applications. In the end, the operating system ensures that the system runs smoothly. These are the functions of the operating system. But each operating systems acts...
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...Kumar What is I.T. * What includes in I.T.? * Why I.T. is important? * Why I.T. is important for Managers? * What is an I.T. Application? * Why I.T. applications are important for Managers? Chapter 1 and 2 Computers and Computer Organization Chapter 1 * What is a Computer? * Two basic components of a Computer System * Hardware and Software * Difference between the two basic components * Types of Computer * Analog, Digital and Hybrid General Operations of a Computer System * Interfacing * Inputting * Storing * Processing * Outputting * Controlling Basic Organization of a Computer System * Arithmetic and Logical Unit (ALU) * Arithmetic functions * Logical functions * Primary Memory vs. Secondary Memory (Storage) Potential Exam. Questions * What is a computer? What are the different types of Computers? * Differentiate between Analog and Digital Computer. * Differentiate between Hardware and Software. * What are the general operations of a computer system? * Explain the basic organization of a computer system. * Differentiate between Primary and Secondary Memory. * Why I.T. is important for Managers? Chapter 3, 5, 6 and 7 Classification and components of Computers * Classifications of Digital Computers * Super Computer * Mainframe * Minicomputer * Workstations * Microcomputers * Portable Computers Super Computers ...
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...Chaola Cummings 3/27/15 NT1110_Module1_Lab.doc The Purpose and Functions of an OS System The operating system is basically the heart of your PC. Without it your PC is nothing more than just a hunk of built up metal. The OS interprets commands to your hardware in a way that it can function. Using zeros and ones your hardware can function at a basic level. Certain things do not need an OS. If you have a regular Dell laptop; or a gaming computer you’re going to need a more complex OS. You have a variety of OS’s which include Windows, Linux, and Mac. Mac is a pretty fun interface. Mostly multimedia designers, graphic artists, and musicians use this type of OS. They’re accredited for the GUI graphical user interface. People can make changes to their PC to fit they’re styles. Mac has Intel processors but are not compatible with windows or Linux. I have never really used a Linux OS before besides what I have read back in high school. To me it seems pretty cool. You can design your own OS and add it to the Linux. I don’t see why everyone doesn’t have this. I guess the down fall of that is because you can’t sell it. Supposedly they have this contract deal where it’s free to everyone. You can do whatever you want to it. If you make a boss OS you can’t sell it for profit, because the original is not for profit. Linux can run in widows compared to Mac. Also Mac uses it’s on web browser called Safari. If you want you can add Firefox to it I believe. There’s so much going...
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...operating system (OS) is a software program that manages the hardware and software resources of a computer. A key component of system software, the OS performs basic tasks, such as controlling and allocating memory, prioritizing the processing of instructions, controlling input and output devices, facilitating networking, and managing files. Modern general-purpose computers, including personal computers and mainframes, have an operating system (a general purpose operating system) to run other programs, such as application software. Examples of operating systems for personal computers include Microsoft Windows, Linux, Mac OS (Darwin), and Unix. The lowest level of any operating system is its kernel. This is the first layer of software loaded into memory when a system boots or starts up. The kernel provides access to various common core services to all other system and application programs. These services include, but are not limited to: task scheduling, memory management, disk access, and access to hardware devices. Apart from the kernel, an operating system is often distributed with system software that manages a graphical user interface (although Windows and Macintosh have integrated these programs into the operating system), as well as utility programs for tasks such as managing files and configuring the operating system. Oftentimes distributed with operating systems are application software that does not directly relate to the operating system's core function, but which the...
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...The Purpose and Functions of an Operating System The operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes a system call to an OS function or be interrupted by it. Operating systems can be found on many devices that contain a computer—from cellular phones and video game consoles to supercomputers and web servers. Examples of popular modern operating systems include Android, BSD, iOS, Linux, OS X, QNX, Microsoft Windows, Windows Phone, and IBM z/OS.. History 1. Windows - The first Windows system was released in 1985. Originally, it was just a graphical user interface on top of MS-DOS – a state of affairs that lasted until the release of Windows 95, when MS-DOS products were integrated into Windows. Windows 95 was a huge departure from the previous systems and was the first major...
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... June 24 2014 pg1 Nt1110 Short answer 1.1 The purpose and functions of an operating system In definition the operating systems provides an interface between the hardware of the computer and the user. So without the operating system you wouldn’t have GIU and it would take you days for the simplest task. The operating system functions like a boss at work place. Its job is to make sure all the applications get the right resources. Similar to a boss making sure the employees have the right resources. It also makes sure the capacity of the system is running good for all users and applications. Like in a work place the boss makes sure production is at the right pace for employees and employers. The operating system also provides a consistent application interface. This allows a software developer to write on one computer and be confident it will run on different computer of the same type. The three most used operating systems are Windows, Linux, and Mac OS X. The operating systems have the same function on all computers. Which is allows the user to have an interface but there are differences between them and here are five of them. The first is that Microsoft Windows and Apples Mac OS X operating codes are protected so you have to buy specific software for them. Linux is a free operating system and anybody can change the code or write software for Linux freely...
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...The Purpose and Functions of an Operating System Describe the purpose and functions of an operating system. Explain at least five differences among Windows, Linux, and Mac OS X operating systems. WINDOWS Operating System 1. Windows is the most commonly used operating system on client computers. It is estimated that up to 90% of client computers use one of the various Windows 2. Windows incorporates many applications for the end-user including a web browser (Internet Explorer), a word processor (WordPad), a command-line interface (Command Prompt), a file-managing application (Windows Explorer), and much more. Some end-users also make extensive use of Microsoft Office (Word, Excel, Outlook, PowerPoint, and Access) and many other third-party applications. Because Windows has the highest saturation in the market, third-party application developers focus the most on compiling programs that run effectively on Windows. 3. Windows XP was the legacy of Windows operating system, but after April of 2014 Windows XP will not been longer supported by Microsoft. 4. Widows Vista was supposedly the next generation of Microsoft replacing Windows XP, but did not did very well after their release in the market. 5. Latest Versions Windows 7 and Windows 8 has been gaining popularity thru their users. Windows 7 minimum requirements compare with other System Requirements succeed much better than the rest of the Microsoft operating system for Windows. Windows 7 has a processor...
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