By Kris Saelen
In todays fast paced times, more and more people prefer to listen to their music while on the go. This is because of the convenience it provides and the solace it gives considering the busy world we live in now.
In order to bring music and entertainment with you wherever you go, an mp3 is a must for any busy person. Zune Mp3 player is an excellent choice. The best thing about this product is that it is known for its great music playback and excellent performance of audio, video and photos. The interface is also user friendly, colorful and fun to look at. All these come with an FM radio along with allowing an integrated wireless music sharing.
It is obvious that this product has focused on music discovery and not so much with longevity. This is however an excellent alternative to the iPod classic because of its substantial storage capacity. Music search and download is also available through the Zune subscription which makes it ideal for music purchase.
Zune also has one of the best FM radio available for an MP3 player which includes a detailed support for each station and also song information. Gone are the days when you listen to songs with unknown titles and artists. This is possible through the use of RBDS or Radio Broadcast Data System. Zune also provides you with a tagging system which allows you to tag the songs and enables you to download them at a later time.
The downside with this player, however, is its low Zune Mp3 player battery life. You will constantly see your Zune Mp3 player battery draining right before your eyes. This is not good for the battery is the life of music players. Without the Zune Mp3 player battery, it will simply not work.
But there are also other problems as well. High quality earphones are not included in the package. The glossy surface of the player is unfortunately prone to smudges and scratches which can be irritating. This also adds to the wear and tear of the product.
These are some reasons why you should think twice before purchasing the Zune mp3 player. After all, the Zune mp3 player battery is just too weak. It is important to determine for yourself if the performance of this player meets your standards. Try it out in stores or ask people you know who owns one of these players. It is also advisable to ask the sales person in the stores about the different pros and cons of this particular brand. This will help you assess if you really like the product or not.
As in all major purchases, doing research and canvassing is vital for you to get a great deal on your mp3 player. Once you have done this before actually purchasing anything, there will be no sort of buyers remorse because you have done ample research about the product. Even if the Zune mp3 player battery is weak, it may still be the music player you are looking for.
Kris Saelen is the webmaster of Discount MP3 Players – MP3 players and digital audio player reviews and ratings, most popular mp3 players, user opinions, compare prices, …
Enrich The Musical Library on Your iPod
By Paulazhang
With my new iPod at hand, I can always have wonderful musical joy anywhere anytime. And I have ever met such a problem: I love some DVD movie background music and even some interesting film dialogues so much that I want to enjoy those audios on my iPod, however, I have no idea to transfer them to my iPod. To my delight, I have found a best solution and I would like to share it here.
Leawo DVD Ripper has been a great help to me. Actually I intended to extract DVD movie dialogues to enjoy on my iPod, then I came across Leawo DVD Ripper from Google search. I download a trail version first and found it was exactly what I needed. Then I got a registered version and I found that extracting DVD audio for my iPod is only a small part of its powerful functions. It is actually a professional DVD converter for me to rip, backup, edit and convert DVD to video in variety of formats. It can backup DVD to hard drive without quality loss; it helps to trim, crop and watermark DVD video for better visual enjoyment; and it rips and converts DVD to AVI, WMV, mp4, mp3, 3gp, mov etc for playback on media devices like iPhone, iPod, iPad, PSP, PS3, Apple TV, Zune, etc.
Now with Leawo DVD Ripper, I can extract the DVD movie background music, dialogues, songs and more to enrich my iPod musical library, what’s more, its other functions also color my media life. If you want more info, visit www.leawo.com, there are more multimedia tools for your choice.
Leawo Software is a pioneering multimedia technologies provider specialized in software of audio and video recording, conversion, editing for home users, developers and small businesses. We are committed to promoting media over Internet as well as in daily life.
VMware
By w3hbre
History
In 1998, VMware was founded by Diane Greene, Mendel Rosenblum, Scott Devine, Edward Wang, and Edouard Bugnion. Greene and Rosenblum, who are married, first met while at Berkeley. Edouard Bugnion remained the chief architect and CTO of VMware until 2005, and went on to found Nuova Systems (now part of Cisco).
The company has its headquarters in Palo Alto, California, United States, and established an R&D Center in Cambridge, Massachusetts, as well as one at the Time Warner Center in New York City, in 2005. VMware software runs on Windows and on Linux, and made its debut on Mac OS X in December, 2006. Their customers include all 100 of the Fortune 100 companies.
VMware delivered its first product, VMware Workstation, in 1999 and entered the server market in 2001 with VMware GSX Server (hosted) and VMware ESX Server (hostless). In 2003 VMware launched VMware Virtual Center, the VMotion and Virtual SMP technology. 64-bit support appeared in 2004. The company was also acquired by EMC Corporation that same year.
In August 2007, EMC Corporation released 10% of the company’s shares in VMware in an initial public offering on the New York Stock Exchange. The stock debuted at 29 USD per share and closed the day at 51 USD.
On July 8, 2008, VMware co-founder, president and CEO Diane Greene was unexpectedly fired by the VMware Board of Directors and replaced by Paul Maritz, a retired 14-year Microsoft veteran who was heading EMC’s cloud computing business unit. In the same news release VMware stated that 2008 revenue growth will be “modestly below the previous guidance of 50% growth over 2007.” As a result, market price of VMware dropped nearly 25%. Then on September 10, 2008, Rosenblum, the company’s chief scientist, resigned from VMware.
On September 16, 2008, VMware announced that they are collaborating with Cisco to provide joint data center solutions. One of the first results of this is the Cisco Nexus 1000V, a distributed virtual software switch that will be an integrated option in the VMware infrastructure.
VMware acquired Tungsten Graphics, a company with core expertise in 3D graphics driver development on November 26, 2008.
On August 10, 2009, VMware announced the acquisition of SpringSource, a leader in enterprise and web application development and management. . The acquisition is seen by the industry as a strategic move of VMware to become a leader in offering Platform as a Service (PaaS). The acquisition also resulted in the expansion of VMware’s education services portfolioto by the inclusion of SpringSource University.
Core product design
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VMware software provides a completely virtualized set of hardware to the guest operating system. VMware software virtualizes the hardware for a video adapter, a network adapter, and hard disk adapters. The host provides pass-through drivers for guest USB, serial, and parallel devices. In this way, VMware virtual machines become highly portable between computers, because every host looks nearly identical to the guest. In practice, a system administrator can pause operations on a virtual machine guest, move or copy that guest to another physical computer, and there resume execution exactly at the point of suspension. Alternately, for enterprise servers, a feature called VMotion allows the migration of operational guest virtual machines between similar but separate hardware hosts sharing the same storage. Each of these transitions is completely transparent to any users on the virtual machine at the time it is being migrated.
VMware Workstation, Server, and ESX take a more optimized path to running target operating systems on the host than emulators (such as Bochs) which simulate the function of each CPU instruction on the target machine one-by-one, or dynamic recompilation which compiles blocks of machine-instructions the first time they execute, and then uses the translated code directly when the code runs subsequently. (Microsoft Virtual PC for Mac OS X takes this approach.) VMware software does not emulate an instruction set for different hardware not physically present. This significantly boosts performance, but can cause problems when moving virtual machine guests between hardware hosts using different instruction-sets (such as found in 64-bit Intel and AMD CPUs), or between hardware hosts with a differing number of CPUs. Stopping the virtual-machine guest before moving it to a different CPU type generally causes no issues.
VMware’s products use the CPU to run code directly whenever possible (as, for example, when running user-mode and virtual 8086 mode code on x86). When direct execution cannot operate, such as with kernel-level and real-mode code, VMware products re-write the code dynamically, a process VMware calls “binary translation” or BT. The translated code gets stored in spare memory, typically at the end of the address space, which segmentation mechanisms can protect and make invisible. For these reasons, VMware operates dramatically faster than emulators, running at more than 80% of the speed that the virtual guest operating-system would run directly on the same hardware. In one study VMware claims a slowdown over native ranging from 06 percent for the VMware ESX Server.
VMware’s approach avoids some of the difficulties of virtualization on x86-based platforms. Virtual machines may deal with offending instructions by replacing them, or by simply running kernel-code in user-mode. Replacing instructions runs the risk that the code may fail to find the expected content if it reads itself; one cannot protect code against reading while allowing normal execution, and replacing in-place becomes complicated. Running the code unmodified in user-mode will also fail, as most instructions which just read the machine-state do not cause an exception and will betray the real state of the program, and certain instructions silently change behavior in user-mode. One must always rewrite; performing a simulation of the current program counter in the original location when necessary and (notably) remapping hardware code breakpoints.
Although VMware virtual machines run in user-mode, VMware Workstation itself requires the installation of various drivers in the host operating-system, notably to dynamically switch the GDT and the IDT tables.
The VMware product line can also run different operating systems on a dual-boot system simultaneously by booting one partition natively while using the other as a guest within VMware Workstation.
Products
For more details on this topic, see List of VMware software.
vCenter Server ($)
(license manager)
Server
Hardware
ESX ($)
(vMotion, DRS, HA, Storage vMotion)
Guest OS
Guest OS
Guest OS…
ESXi (free)
(ESXi free is managed by the Virtual Infrastructure (or vSphere) Client)
ESXi ($)
(vMotion, DRS, HA, Storage vMotion)
Guest OS
Guest OS
Guest OS…
Workstation
Hardware
Windows or
Linux OS
VMware Server (free)
Guest OS
Guest OS
Guest OS…
User
Session
VMware Workstation ($)
VMware Player (free)
vSphere Client for managing ESX(i) hosts (free)
Desktop software
VMware Workstation (first product launched by VMware in 1999). This software suite allows users to run multiple instances of x86 or x86-64 -compatible operating systems on a single physical PC.
VMware Fusion provides similar functionality for users of the Intel Mac platform, along with full compatibility with virtual machines created by other VMware products.
VMware Player For users without a license to use VMware Workstation or VMware Fusion, VMware offers this software as freeware product for personal use. While initially not able to create virtual machines, this limitation was removed in version 3.0.1
Server software
VMware markets two virtualization products for servers:
VMware ESX (formerly called “ESX Server”), an enterprise-level product, can deliver greater performance than the freeware VMware Server, due to lower system overhead. VMware ESX is a “bare-metal” product, running directly on the server hardware, allowing virtual servers to also use hardware more or less directly. In addition, VMware ESX integrates into VMware vCenter, which offers extra services to enhance the reliability and manageability of a server deployment, such as
VMotion – the capability to move a running virtual machine from one ESX host to another and faster than some other editions
Storage VMotion – the capability to move a running virtual machine from one storage device to another
DRS – Dynamic Resource Scheduler – automatic load balancing of a ESX cluster using VMotion
HA – High Availability – In case of hardware failure in a cluster, the virtual servers will automatically restart on another host in the cluster
VMware ESXi (formerly called “VMware ESX 3i”), is quite similar to ESX, but differentiates in that the Service Console is removed, and replaced with a minimal BusyBox installation. Disk space requirements are much lower than for ESX and the memory footprint is reduced. ESXi is intended to be run from flash disks in servers but can be run from normal disks. VMware ESXi hosts can’t be managed directly from the console, all management is performed through a VirtualCenter Server. In July 2008, VMware decided to give ESXi away for free.
VMware Server (formerly called “GSX Server”) is also provided as freeware, like VMware Player, and it is also possible to create virtual machines with it. It is a “hosted” application, which runs within an existing Linux or Windows operating system.
Other products
VMware ThinApp, one of the most recent products of the company
VMware vCenter Converter (VMware Converter) comes in both Enterprise ($, bundling and entitlement with vCenter Server) and Standalone (free) versions and is designed primarily for the following tasks:
Convert a physical machine into a virtual machine; referred to as Physical-to-Virtual or P2V.
Convert a virtual machine of one type into another (V2V)
Run automated configuration tasks on VMware ESX/ESXi servers.
Converted VMs are compatible with VMware ESX/ESXi, VMware Server and VMware Workstation. A P2V conversion can be done from any physical machine running Microsoft Windows (XP or later) or Linux based (Linux only works on Standalone version). Conversions can be managed from a centralized console allowing for multiple conversions at the same time (using the Enterprise version). VMware vCenter Converter replacesupdate the older VMware products “P2V Assistant” and “Importer”. P2V Assistant allowed users to convert physical machines into virtual machines; and Importer allowed the import of virtual machines from other products into VMware Workstation.
VMware Capacity Planner, an information technology (IT) capacity planning tool, collects utilization-data in heterogeneous computing environments and compares it to industry-standard reference-data to provide analysis and decision-support modeling.
VMware ACE provides a means of distributing secured virtual desktops to networked client PCs.
VMware ThinApp, formerly Thinstall, is a virtualization suite capable of creating portable software (“portable apps”). This software enables applications to execute without being previously installed.
VMware Infrastructure is a collection of VMware products used to manage a VMware ESX/ESXi server environment.
VMware vSphere is a “cloud OS”. VMware vSphere 4 was originally named VMware Virtual Infrastructure (VI) 4 and is capable of managing large pools of infrastructure, including software and hardware both from internal and external networks.
The VMware Tools package adds drivers and utilities to improve the graphical performance for different guest operating systems, including mouse tracking. The package also enables some integration between the guest and host systems, including shared folders, plug-and-play devices, clock synchronisation, and cutting-and-pasting across environments. VMware Inc makes VMware Tools available for Microsoft Windows, Linux, Sun Solaris, FreeBSD, and Novell NetWare guest systems.
On September 11 at VMworld 2007, VMware announced that large portions of VMware Tools for Linux, Solaris, and FreeBSD guests were released under GPL and GPL-compatible licenses. They also announced the creation of the Open Virtual Machine Tools (“open-vm-tools”) project on Sourceforge.net.
VMware’s promontory headquarters at 3401 Hillview Avenue in Palo Alto, California
See also
Comparison of platform virtual machines
List of VMware software
Virtualization
VMware VMFS
References
“VMware leader in virtualization market”. http://www.hostreview.com/icontent/the-blog/vmware-leader-virtualization-market.
“VMware market share more than 80%”. http://www.nytimes.com/2009/08/31/technology/business-computing/31virtual.html?pagewanted=2&_r=2&partner=rss&emc=rss.
“VMware, Hyper-V virtualization leave others in the dust”. http://searchservervirtualization.techtarget.com/news/article/0,289142,sid94_gci1369150,00.html.
“ESX Server Architecture”. Vmware.com. http://www.vmware.com/support/esx21/doc/esx21_admin_system_architecture.html. Retrieved 2009-10-22.
Adam Lashinksky (2007-10-02). “50 Most Powerful Women in Business – Full speed ahead”. CNN. http://money.cnn.com/magazines/fortune/fortune_archive/2007/10/15/100536853/index.htm. “In 1988 she picked up a second master’s, in computer science, at the University of California at Berkeley, where she met Rosenblum”
“Edouard Bugnion lives in the virtual world”. http://www.infoworld.com/article/04/01/23/04FEctoedouard_1.html?s=feature.
“100 of the Fortune 100 companies use VMware”. http://www.cnik.co.uk/software/vmware.htm.
“VMware company history”. http://www.vmware.com/company/mediaresource/milestones.html.
Mullins, Robert (2007-08-14). “Update: VMware the bright spot on a gray Wall Street day”. IDG News Service. http://www.infoworld.com/article/07/08/14/VMware-the-bright-spot-on-a-gray-Wall-Street-day_1.html. Retrieved 2007-08-15.
Name : (2008-07-08). “Tech Trader Daily – Barron Online : VMware Ousts CEO Diane Greene; Cuts ’08 Guidance”. Blogs.barrons.com. http://blogs.barrons.com/techtraderdaily/2008/07/08/vmware-ousts-ceo-diane-greene-cuts-08-guidance/. Retrieved 2009-07-01.
“Virtual Networking Features of the VMware vNetwork Distributed Switch and Cisco Nexus 1000V Series Switches”. http://www.vmware.com/files/pdf/technology/cisco_vmware_virtualizing_the_datacenter.pdf.
David Marshall (2008-12-16), VMware’s year end acquisition of Tungsten Graphics, InfoWorld, http://www.infoworld.com/d/virtualization/vmwares-year-end-acquisition-tungsten-graphics-196
“VMware to Acquire SpringSource”. http://www.vmware.com/company/news/releases/springsource.html.
“How does VMWare Work?”. Extremetech.com. 2009-06-22. http://www.extremetech.com/article2/0,2845,1624080,00.asp. Retrieved 2009-07-01.
“Benchmarking VMware ESX Server 2.5 vs Microsoft Virtual Server 2005 Enterprise Edition”. Virtualization Benchmark Review. 2006-04-19. http://capitalhead.com/articles/benchmarking-vmware-esx-server-25-vs-microsoft-virtual-server-2005-enterprise-edition.aspx. Retrieved 2009-06-11.
“A Performance Comparison of Hypervisors”. http://www.vmware.com/pdf/hypervisor_performance.pdf.
“The Architecture of VMware ESXi”. VMware. http://www.vmware.com/files/pdf/vmware_esxi_architecture_wp.pdf.
VMware Converter. Retrieved 2008-03-31.
“VMware vSphere”. VMware. http://www.vmware.com/products/vsphere/.
“Installing and Upgrading VMware Tools”. Workstation User Manual. VMware, Inc.. 2007-09-20. http://www.vmware.com/pdf/ws6_manual.pdf. Retrieved 2007-11-02.
“VMware Unveils VMware Tools as Open Source Software”. LXer. http://lxer.com/module/newswire/view/92570/index.html. Retrieved 2009-07-01.
External links
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Categories: Companies listed on the New York Stock Exchange | VMware | Software companies of the United States | Companies established in 1998 | Companies based in Palo Alto, California | EMC Corporation | Cloud computing vendorsHidden categories: Articles needing additional references from September 2009 | All articles needing additional references | Articles containing potentially dated statements from 2007 | All articles containing potentially dated statements
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