Features that are added with Service Pack 1 include:. A full list of updates is available in the Microsoft Knowledge base here. Service Pack 2 for Windows Server is currently under development, and has a scheduled release date for the second half of It is a new release of the server operating system.
This Microsoft server comes in several variants, each targeted towards a particular size and type of business: See Compare the Editions of Windows Server for a concise comparison. In general, all variants of Windows Server have the ability to share files and printers , act as an application server , and host message queues, provide email services, authenticate users, act as an X.
SBS includes Windows Server and additional technologies aimed at providing a small business with a complete technology solution. The technologies are integrated to enable small business with targeted solutions such as the Remote Web Workplace, and offer management benefits such as integrated setup, enhanced monitoring, a unified management console, and remote access.
The product also provides a basic firewall, DHCP server and NAT router using either two network cards or one network card in addition to a hardware router. SBS server has the following design considerations: [6]. It is designed to be used primarily as an IIS 6.
NET technology, a key part of the. NET Framework. Only 10 concurrent file-sharing connections are allowed at any moment. Additionally, Windows Server , Web Edition cannot act as a domain controller.
See Compare the Editions of Windows Server Windows Server , Standard Edition is aimed towards small to medium sized businesses. Flexible and versatile, Standard Edition supports file and printer sharing, offers secure Internet connectivity, and allows centralized desktop application deployment.
Windows Server , Enterprise Edition is aimed towards medium to large businesses. It is a full-function server operating system that supports up to eight processors and provides enterprise-class features such as eight-node clustering using Microsoft Cluster Server MSCS software and support for up to 32 GB of memory. Enterprise Edition also comes in a bit edition for Intel. Windows Server , Datacenter Edition is designed for infrastructures demanding high security and reliability.
Windows Server is available for x86 bit, x86 bit and x64 bit processors. It supports a minimum of 8 processors and a maximum of 64 processors, however it is limited to 32 processors when run on bit architecture. Windows' application architecture allows the operating system to run multiple applications at the same time.
Generally, each application is run in a separate memory space, meaning each application believes it is the only one running on the computer. If an application encounters an error and crashes, Windows can simply terminate that application's memory space.
Other applications running on the server are unaffected. In Windows terminology, a task usually represents a single software application. On a workstation computer, Microsoft Word is a task. On a server computer, an application server like Internet Information Services or Commerce Server might be a task. Multitasking refers to Windows' ability to run multiple tasks at the same time. In reality, though, a computer's processor can't run multiple tasks at once.
To enable multitasking, the Windows kernel includes a task scheduler. This scheduler keeps tracks of all the applications currently running on the computer and assigns 10 Mill.
The scheduler then instructs the computer's processor to To Go spend a short amount of time on each task. The amount of time the processor spends on a task is determined by the task's time slice: A larger time slice means the processor works on that task longer before switching to another one.
Because modern processors are so fast, they can switch between dozens of tasks in just a few milliseconds. Although the computer works on only one task at a time, it switches between them so quickly and so frequently that it seems to be working on them all at once.
You can see the tasks the computer is working on from within Windows. Just right-click on the Task Bar and select Task Manager from the pop-up menu. As shown in Figure , the Task Manager's Processes tab shows you all the tasks the computer is running and the percentage of the processor's time that is being spent on each task.
Each task running under Windows is capable of running multiple threads. You can think of a thread as a minitask that runs within the main task. For example, Microsoft Word enables you to type a document while it prints another one and spell-checks a third. All of these operations take place in separate threads within the main Word task. The Windows task scheduler breaks down the time slice assigned to each task and assigns the pieces to that task's threads.
Each thread is then scheduled to run on the processor for the designated amount of time. Again, the processor is capable of working on only one thing at a time, but it is able to switch so fast that the computer appears to be working on multiple tasks and threads at once. On a computer with more than one processor, Windows is truly capable of working on more than one thing at a time.
The kernel's task scheduler is capable of assigning tasks and threads to a particular processor. The scheduler keeps track of how much work each processor is performing and tries to assign threads and tasks evenly, so that all processors in the computer are working at about the same rate. As an administrator, you usually have no control over which tasks run on specific processors.
Windows uses each processor in the computer as an available resource, and the scheduler makes complex decisions to determine which threads to assign to which processors. Software developers have a great deal of control over how well their applications can run on multiple processors. Some applications are written in such a way that they cannot effectively run on more than one processor.
For example, an application that uses a single thread can run on only one processor because individual threads cannot be broken up between processors. If you have an application that does not take advantage of the multiple processors in your server, contact the application's developer or manufacturer to see if a version is available that takes advantage of multiple processors.
Windows Server Editions. Standard Edition SE This is the plain-vanilla version of Windows that most corporations likely will deploy. Enterprise Edition EE Aimed squarely at more demanding environments, EE adds Metadirectory Services support, high-level memory management features, and some session management features for Terminal Services. Datacenter Edition DE This performance- and scalability-enhanced Windows Server edition supports from 8 to 32 processors and features 64GB of memory and from two to eight node clusters.
Windows Server for Bit Itanium and Extended For some time now, this flavor of Windows Server has been available as the only bit Windows operating system. Datacenter supports up to 64 processors.
Windows Server Compute Cluster Edition Windows Server , Compute Cluster Edition is designed for working with the most difficult computing problems that would require high performance computing clusters. Compute Cluster edition deploys in clusters of multiple servers to form large supercomputers. Microsoft intends to release this edition in Windows Server Storage Server Windows Storage Server is optimised to provide dedicated file and print sharing services.
It is only available through OEMs when purchased pre-configured with network attached storage devices, which are available in a wide variety of sizes from a couple hundred gigabytes to a few terabytes.
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