In august 2015 thenextwebcom reported windows total

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at home. In August 2015 thenextweb.com reported Windows total market share as 91.77% (Protalinski, 2015). Windows, in all of its forms, is the most dominant desktop Operating System by a very large margin. Windows was not Microsoft’s first operating system to hit the market; it was not even an operating system itself in the beginning. Microsoft released Windows 1.0 in 1985 and was a graphic user interfaces add-on to Microsoft Disk Operating system or MS-DOS. A system had to have MS-DOS installed before it could install Windows. Windows is not a true object-oriented operating system but much of its design comes from the same concepts. According to Stallings “Objects are used in cases where data are intended for user mode access or when data access is shared or restricted” (2015, p. 87).Memory ManagementThe purpose of a computer operating system is to execute and run applications and programs. The system holds parts of these programs in the computers main memory during this process. An
UNIX/Linux vs. Mac vs. Windows OSadequate and productive computer system must use a memory management system to utilize the central processing unit and respond quickly to user requests.Windows memory management technique utilizes virtual memory and paging. Virtual address space is assigned to each process. Windows supports virtual address size ranges from two gigabytes to two terabytes, the size limit each system depends on hardware installed and on what Windows version is running. The virtual address is not the physical location of the object; instead, the system uses a page table to translate the virtual address to the physical address. When a process attempts to use more physical memory than is available Windows will move some to a paging file on disk. The system organizes this information into pieces of memory called pages: Page size is dependent on the system it is running on. Windows has can move these pages in and out of physical memory, giving the system flexibility. Process ManagementRecent versions of the Windows operating systems handle process management by using a two part system: threads and processes. It breaks the process out into the following categories: scheduling and execution, processes, and resource ownership. A Windows OS process is composed of autonomous virtual address space that contains code and data. The system protects this data and code from other running processes. According to Hart (2005), “each process, in turn, contains one or more independently executing threads. A thread running within a process can create new threads, create new independent processes, and manage communication and synchronization between the objects” (Windows Processes and Threads, p. 1).Windows process management strategy involves using object- oriented programming and concepts, which set it apart from Linux and Mac. Windows object oriented programming ensures that thesystem handles processes as objects.
UNIX/Linux vs. Mac vs. Windows OSFile ManagementWindows file management system is called New Technology File System (NTFS). Microsoft

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