How Do SIM Cards Work?

SIM cards allow you to make calls and use data on your mobile network, but how do they work, and how can they restrict what you can do with your phone? Squarespace link: Visit http://squarespace.com/techquickie and use offer code TECHQUICKIE to save 10% off your first order. Follow: http://twitter.com/linustech Join the community: http://linustechtips.com source

Types of Operating Systems as Fast As Possible

What are some of the differences between different types of operating systems, and why are those differences so darn important? lynda.com message: Sign up for your 10-day FREE trial at http://lynda.com/techquickie Twitter: http://twitter.com/linustech Facebook: http://facebook.com/linustech Join our community forum: http://linustechtips.com Image credits “Virtual memory” by Ehamberg – Own work. Licensed under CC BY-SA 3.0 via Read more about Types of Operating Systems as Fast As Possible[…]