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Frequently Asked Questions

What is the K virtual machine (KVM)?

J2ME CLDC and K virtual machine: Frequently Asked Questions
K virtual machine (KVM) is a Java virtual machine that provides the basis for the CLDC reference implementation (RI). K stands for "Kilobyte" virtual machine, referring to the small footprint of the platform. The K virtual machine is very small -- starting from approximately 70K in size.

Back What is the KVM (K Virtual Machine)?

Data Representations: Support
The KVM is a specification for a Java Virtual Machine optimized for devices with limited resources such as cellphones, handhelds, or set-top boxes. For more details, see the white paper from Sun.

What is the difference between PersonalJava technology and the K virtual machine?

PersonalJava FAQ
PersonalJava technology consists of a virtual machine plus a set of class libraries. The K virtual machine is a virtual machine only. It is a base upon which sets of vertically targeted API's, or "profiles", will run. Click here for more information.

Is CLDC a virtual machine?

J2ME CLDC and K virtual machine: Frequently Asked Questions
No. CLDC specifies the core libraries and virtual machine features for J2ME implementations on resource-constrained devices. A CLDC implementation includes a virtual machine. For instance, KVM is included in the CLDC reference implementation.

Is a virtual machine all that's needed to run a small application?

J2ME CLDC and K virtual machine: Frequently Asked Questions
No. A virtual machine requires a set of core libraries to run applications. Some of these libraries are packaged as a part of a CLDC implementation along with the virtual machine. In addition, the capabilities of CLDC can be extended by adding profiles such as the Mobile Information Device Profile (MIDP) and/or optional packages.

What is a virtual machine?

Server Virtualization FAQ - IT Management
quot;Virtual machine" is the term applied to the server environments running on a piece of hardware. So, in the example above, the decoupled Linux and Windows servers running on a single blade server would be referred to as virtual machines.

What is the Jikes Research Virtual Machine?

FAQ - Confluence
Jikes RVM (Research Virtual Machine) is designed to execute Java??? programs that are typically used in research on fundamental virtual machine design issues. It provides the research communities with a flexible testbed to prototype new virtual machine technologies and experiment with different design alternatives. It runs on the Linux?/IA-32, AIX???/PowerPC???, OSX/PowerPC, and Linux/PowerPC platforms, and exhibits industry-strength performance for many benchmark programs on these platforms.

How stable is the Waba Virtual Machine?

wabasoft - frequently asked questions
The WabaVM has been tested extensively for robustness. In its first release, making it robust was the top priority. If you experience any problems, please email support with the full description of the problem.

What is the performance of the PERC virtual machine?

Aonix - PERC - FAQ
Some competing vendors will try to convince you with carefully selected benchmarks intended to prove the superiority of their solution. Don't be fooled. The only reliable way to determine performance in the real world, is to try for yourself. Real world applications are far more complex in their content and in their interaction with their external environment than can ever be captured in a simple execution benchmark.

What is a KVM?

TomatoChip.com - PRODUCT FAQ's - Computer accessories at dis...
KVM (Keyboard, Video, Mouse) controllers are designed to control multiple computers while eliminating the use of multiple keyboards, monitors, and mice. Through these KVM switches, users can control several computers or servers using one set of keboard, montior, and mouse.

What Java virtual machine (JVM) do I use to run the AspectJ compiler?

AspectJ Frequently Asked Questions
Use the latest, greatest, fastest JVM you can get your hands on for your platform. The compiler's performance is dependent on the performance of the JVM it is running on, so the faster a JVM you can find to run it on, the shorter your compile times will be. At a minimum you need to use a Java 2 or later JVM to run the compiler (J2SE 1.3 for AspectJ 1.1). We realize that this constraint can be a problem for users who don't currently have a Java 2 JVM available.

How can I uninstall the Microsoft Java Virtual Machine (JVM) from Windows XP?

The Broadband Reports Windows XP FAQ - dslreports.com
You might want to remove the Microsoft JVM, which Microsoft no longer supports, in favor of the more recent Sun Microsystems JVM. To remove the Microsoft JVM, perform the following steps: The HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\JAVA_VM registry subkey (to remove the Microsoft Internet Explorer (IE) options When Internet Explorer 7 is installed on Windows XP, ctfmon.exe runs in the background without purpose, and when the Run entry for ctfmon.

How do I increase the memory for the Java Virtual Machine?

SQL Developer - FAQ
Usually the default memory configuration of your VM should be sufficient to work with SQL Developer. If you want to increase the available memoy anyway you will have to start the application with additional command line options. If you use a Sun Microsystem Java VM open a shell window, change to the SQL Developer folder and type java -Xmx256m -jar sqldeveloper.jar to start with a maximum heap memory of 256 MB. The default maximum heap size is 64 MB.

Can I run WordRider on Microsoft's Virtual Machine?

WordRider Text Editor for TI-89/92/TxtRider/Hibview/uView - ...
The latest version of WordRider requires at least version 1.5 of the Java 2 platform, and therefore will not be compatible with Microsoft's Virtual Machine.

Can I install WellSight products on a Virtual Machine?

WellSight Systems
Yes, when using a hardware key for your license, or for the WellSight Log Viewer, which does not require a license. No, when using an electronic license you must install your WellSight product directly on a real computer running a supported version of Windows. This applies to both stand-alone and network installations.

Why your own virtual machine? Why not compile to JVM/.NET?

docs/faq.pod
Those VMs are designed for statically typed languages. That's fine, since Java, C#, and lots of other languages are statically typed. Perl isn't. For a variety of reasons, it means that Perl would run more slowly there than on an interpreter geared towards dynamic languages. The .NET VM didn't even exist when we started development, or at least we didn't know about it when we were working on the design. We do now, though it's still not suitable. Sure we will. They're just not our first target.

How do I find out which Java™ virtual machine I have installed or which one I am using?

alphaWorks : IBM Simulation Producer : FAQs
In order to see which Java virtual machine you have installed or which one you have checked, follow these steps:

How can I transfer files to virtual machine with AROS?

AROS Research Operating System
First and simpliest way is to put files to the ISO image and and connect it to VM. There's a lot of programs able to create/edit ISO's like UltraISO, WinImage, or mkisofs. Second, you can set up the network in AROS and FTP server on your host machine. Then you can use FTP client for AROS to transfer files (look for MarranoFTP). This is tricky enough to stop at this point. User documentation contains a chapter about networking, go for it.

How Do I Make The Virtual Machine Feel Less Sluggish?

Live View - FAQ
Virtual Machines are inherently slower than their hardware counterparts. You can, however, make them feel more responsive by installing VMware Tools. To do so, wait until the Virtual Machine boots and then from the VMware Menu select VM->Install VMware Tools. This will require a reboot of the VM.
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