As far as operating systems go, to some it would seem as if UNIX has a clear advantage over Windows. UNIX offers greater flexibility than Windows operating systems; furthermore, it is more stable and it does not crash as much as much as Windows. To some, UNIX is just as easy to use as Windows, offering a GUI interface as well as command line. But there are users out there that believe UNIX is for only for computer gurus only, claiming that the fragmentation of the UNIX GUI is its greatest competitive weakness.
One thing that has been established though, UNIX is quite a bit more reliable than Windows, and less administration and maintenance is needed in maintaining a UNIX system. This is a huge cost saver for any organization. Rather than employing many individuals to maintain a Windows based system, one part-time employee would be needed for the upkeep of a typical size UNIX system. One key difference between UNIX and Windows is the implementation of multiple users on one computer. When a user logs onto a UNIX system, a shell process is started to service their commands. Keeping track of users and their processes, a UNIX operating system is able to keep track of processes and prevent them from interfering with each other. This is extremely beneficial when all the processes run on the server, which demands a greater use of resources - especially with numerous users and sizeable applications.
In summary, the best way to choose between UNIX and Windows is to determine organizational needs. If an organization uses mostly Microsoft products, such as Access, Front Page, or VBScripts, it's probably better to stick with Windows. But, if reliability, universal compatibility, and stability are a concern, UNIX would probably be the way to go.
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• Simply stated, the main difference is Windows uses a GUI (Graphical User Interface) and UNIX does not. In Windows one uses the click of a mouse to execute a command where as in UNIX one must type in a command. There are GUIs that can be used in a UNIX environment though very few UNIX users will stoop that low to use one.) Before there was a Windows environment, DOS (Disk Operating System) was used on PCs. DOS was based on and was similar, but only a poor subset, to the UNIX system.
• Differences between UNIX and WINDOWS: Unix is safe, preventing one program from accessing memory or storage space allocated to another, and enables protection, requiring users to have permission to perform certain functions, i.e. accessing a directory, file, or disk drive. Also, UNIX is more secure than Windows on a network because Windows is more vulnerable than UNIX. For example, if you leave a port open in Windows it can be easily used by a hacker to introduce a virus in your environment.
• Unix is much better at handling multiple tasks for a single user or for multiple users than windows. For each user, Unix in general, and especially Sun's Solaris provides many more utilities for manipulating files and data than windows does. For a corporate environment, Unix ( especially Solaris ) provides much more control for the administrator than windows does. Solaris, for example, enables the administrator to mirror or stripe data across several disks to minimize risk or optimize performance without 3rd party products. In general, for a programmer or for an administrator, Unix provides more power and flexibility than windows. For the less sophisticated user, Windows can often more easily be installed and configured to run on cheaper hardware to run a desired 3rd party product. In short -- Unix is better, Windows is easier for less sophisticated users.
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wherestip United States Local time: 20:03 Chinese to English + ...
… The goal of the Open Handset Alliance is to develop open standards for mobile devices.[12] On the same day, the Open Handset Alliance also unveiled their first product, Android, a mobile device platform built on the Linux kernel version 2.6.
Windows Phone is a mobile operating system developed by Microsoft, and is the successor to its Windows Mobile platform,[1] although incompatible with it.[2] Unlike its predecessor, it is primarily aimed at the consumer market rather than the enterprise market.
Symbian is a mobile operating system (OS) and computing platform designed for smartphones and currently maintained by Accenture.[4] The Symbian platform is the successor to Symbian OS and Nokia Series 60; unlike Symbian OS, which needed an additional user interface system, Symbian includes a user interface component based on S60 5th Edition. The latest version, Symbian^3, was officially released in Q4 2010, first used in the Nokia N8. In May 2011 an update, Symbian Anna, was officially announced, followed by Symbian Belle in August 2011.[5][6]
Symbian OS was originally developed by Symbian Ltd.[7] It is a descendant of Psion's EPOC and runs exclusively on ARM processors, although an unreleased x86 port existed.
Some estimates indicate that the cumulative number of mobile devices shipped with the Symbian OS up to the end of Q2 2010 is 385 million.[8]
By April 5, 2011, Nokia released Symbian under a new license and converted to a proprietary shared-source model as opposed to an open source project.[2]
On February 11, 2011, Nokia announced that it would migrate away from Symbian to Windows Phone 7.[9] …
[Edited at 2011-10-12 15:51 GMT]
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wherestip United States Local time: 20:03 Chinese to English + ...
In the number of "smart mobile device" sales, Symbian devices were the market leaders for 2010. Statistics showed that Symbian devices formed a 37.6% share of smart mobile devices sold, with Android having 22.7%, RIM having 16%, and Apple having 15.7% (via iOS).[60]
Prior reports on device shipments as published in February 2010 showed that the Symbian devices formed a 47.2% share of the smart mobile devices shipped in 2009, with RIM having 20.8%, Apple having 15.1% (via iOS), Microsoft having 8.8% (via Windows CE and Windows Mobile) and Android having 4.7%.[61] Other competitors include webOS, Qualcomm's BREW, SavaJe, Linux and MontaVista Software.
Although Symbian's share of the global smartphone market dropped from 52.4% in 2008 to 47.2% in 2009, shipments of Symbian devices grew 4.8%, from 74.9 million units to 78.5 million units.[61] From Q2 2009 to Q2 2010, shipments of Symbian devices grew 41.5%, by 8.0 million units, from 19,178,910 units to 27,129,340; compared to an increase of 9.6 million units for Android, 3.3 million units for RIM, and 3.2 million units for Apple.[62]
Despite this growth in shipment numbers, Symbian has lost a considerable amount of market share in recent years. It has fallen from holding as much as 73% of the smartphone market during 2006[63] to accounting for 22.1% of the market in the second quarter of 2011.[64] Over the course of 2009–2011, Nokia, Motorola, Samsung, LG, and Sony Ericsson announced their withdrawal from Symbian in favour of alternative platforms including Google's Android, Microsoft's Windows Phone, and Samsung's bada.[65][66][67][68]
[Edited at 2011-10-12 16:06 GMT]
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wherestip United States Local time: 20:03 Chinese to English + ...
Unix (officially trademarked as UNIX, sometimes also written as Unix) is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, and Joe Ossanna. The Unix operating system was first developed in assembly language, but by 1973 had been almost entirely recoded in C, greatly facilitating its further development and porting to other hardware. Today's Unix systems are split into various branches, developed over time by AT&T as well as various commercial vendors and non-profit organizations. The second edition of Unix was released on December 6th, 1972.
The Open Group, an industry standards consortium, owns the “UNIX” trademark. Only systems fully compliant with and certified according to the Single UNIX Specification are qualified to use the trademark; others might be called "Unix system-like" or "Unix-like" (though the Open Group disapproves[1] of this term). However, the term "Unix" is often used informally to denote any operating system that closely resembles the trademarked system.
During the late 1970s and early 1980s, the influence of Unix in academic circles led to large-scale adoption of Unix (particularly of the BSD variant, originating from the University of California, Berkeley) by commercial startups, the most notable of which are Solaris, HP-UX and AIX. Among all variants of Unix, Linux is the most widely used, powering everything from huge data centers to desktop systems to mobile phones to embedded devices such as routers. OS X currently has the biggest use on personal computers with more than 55 million systems installed. Today, in addition to certified Unix systems such as those already mentioned, Unix-like operating systems such as MINIX, Linux and BSD descendants (FreeBSD, NetBSD, OpenBSD, and DragonFly BSD) are commonly encountered. The term "traditional Unix" may be used to describe a Unix or an operating system that has the characteristics of either Version 7 Unix or UNIX System V.
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clearwater China Local time: 09:03 English to Chinese
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