Over the years, more and more of the services I use daily are prepaid. What is prepaid? Dictionary.com defines prepaid as, to pay or arrange to pay beforehand or before due: Basically, you pay for…

What is an ICAO code?It is the standard for aircraft registration code. Every aircraft in member countries should have a unique registration code. This includes military aircraft. The standard is set by the International Civil…

What do you think about when you hear "secure computing"? You could think about access controls (username/password, two factor authentication, etc), encryption (of data at rest, data in transit), air-gapped networks, physical security of the…

After a wonderful time hiking through Lassen Volcanic Park, coming back online is an overwhelming experience. Some themed photo sets from the trip are available: Everyone saw the pictures of an orange/red sky over San…

In reference to Performance of Array, Set, and Hash in Ruby, I was curious to see how the three different data structures perform when run in Crystal. The code is slightly modified to handle the…