Online education portals like Udacity and Coursera are really changing the world of remote learning in significant ways. By making free and high quality education accessible to a global audience, these platforms are opening up undreamt of possibilities for communities around the world to improve, grow, and prosper in the digital economy of the 21st century. Education at top tier colleges and universities has traditionally been a social and economic privilege, but now anyone can join in the learning revolution by sitting in virtual classrooms with the world’s best and brightest educators. Whether this involves learning how to code and build smart phone apps, or starting up a new business, or learning about public health literacy, the sky is the limit of what’s now possible.

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Top Linux Virtualization Applications (Part 2 of 3)

6. Bochs (

As an open source x86 emulator written in C++, Bochs is a user-space emulator that can emulate an x86 processor, several I/O devices, and a custom BIOS.

  • Application is extremely flexible and customizable.
  • Allows the ability to run OS’s and software within the emulator on any workstation,


  • Can be slow because it emulates every instruction and I/O devices.
  • In certain conditions, the emulators don’t properly emulate on a machine as required.

7. User Mode Linux (UML) (

User-Mode Linux provides the ability to run Linux versions and Linux processes, allowing users to run buggy software, experiment with new Linux kernels or distributions, and work around the internals of Linux, all without risking your main Linux setup.


  • Documentation is excellent, with a published manual available for purchase at Amazon.
  • Excellent resource sharing/saving features
  • Developed with the “official Linux architecture


  • Consumes a lot of resources, up to 80% or more
  • Does not provide any SMP for virtual servers
  • Does not provide any resource QOS, particularly under heavy disk I/O.

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