Nokia morphs itself from within

Mobile phones offer a bridge between the physical and the digital world. I was shown technology that is able to understand the decipher the real world and augment it with data from the digital world.
What a decade ago required a backpack full of equipment can be done today using just a phone.
Dr Kari Pulli and [...]

Future directions in computing

A quantum computer is a theoretical device that would make use of the properties of quantum mechanics, the realm of physics that deals with energy and matter at atomic scales.

n a quantum computer data is not processed by electrons passing through transistors, as is the case in today’s computers, but by caged atoms known as [...]

Session Management in PHP – Part2

control garbage collection:
PHP session management has a built-in garbage collection mechanism that ensures unused session files are eventually cleaned up. This is important for two reasons: it prevents the directory from filling up with session files that can cause performance to degrade and, more importantly, it reduces the risk of someone guessing session IDs and [...]