K's Learning Diary

All the talks about Virtual Machines is really hurting my head. What is it exactly? Let's go back to the classroom: Is it starting to makes sense? I think it's a little clearer for me. So, if I understood it correctly, the main idea here is the separation of hardware and software dependency.  In your typical old computer, you will have one Operating System (such as Windows) running on one machine and making use of the hardware (with drivers). The Virtual Machine concept uses a software (hypervisor) to allow you to create many separate systems (virtual machines) running at the same time and sharing the same hardware resource you have. This means your machines are utilised more efficiently and also each (virtual) systems of yours are easier to move around (even onto different hardware). It also means it is easier for you to scale up as virtual machines can be created or removed as required, whilst your hardware can be centrally managed, maintained and put

Air ticket - check. Taxis - check. Hotel - check. Visa - ?? wait, do we need visa to go to the US? Visa Waiver Program (VWP) Did a little search, it seems that UK and nationals of 36 participating citizens can travel using the Visa Waiver Program (VMP) . Here are some of the details, for more information, check out the VWP website . The Visa Waiver Program (VWP) enables nationals of 36 participating countries to travel to the United States for tourism or business for stays of 90 days or less without obtaining a visa. The list of participating countries changes from time to time, currently these are:     In some special cases, this scheme may not be applicable to some travellers from the eligible countries. VWP eligible travelers may still apply for a traditional visa, if they prefer to do so.  ESTA - Electronic System for Travel Authorization VWP travelers are required to have a valid authorization

" Hello old friend. And here we are, you and me, on the last page. " One simple sentence, with only a few words, yet carry so many emotions and memories that we can all relate to. The story from which this was extracted is somewhat complicated, which involves a time traveller writing a book with messages to her friend (another time traveller) that is in the future which can no longer travel to the past to see her - the only thing left was a goodbye message at the end of this book... I am a big fan of Dr. Who , not really because of the aliens (you do get used to that) but like most people in the UK, you just grow up with it. It evolves though seasons and generations, each reminds you of the period of time in your own story. The stories are essentially "human" problems, and kind of reflect your own problems in life, the happiness and sorrows, good and bad days, family and friends. Before you know it, you have become part of it.  I like these two compa