Earlier we talked about issues with storing things, like a phone number as a number, due to overflow and accuracy issues. So, we’re going to institute a general rule of programming. Only store something in a number when you are planning to, or could, perform mathematical operations on that number. So for example, you have…
Most modern languages have some built in complex data types that you can use. Characters and Strings For example most languages have the ability to work with strings and characters. In most languages a character is a single byte or two bytes in size, and can represent a letter, number, or special character like a…
Before we dive into studying all about the OS, we want to do a quick dive into an OS, so we can see some of the topics we’ll be covering. In doing so, you might learn a little more about one of the most over looked applications that everyone has to use. Previously, we looked…
At the highest level, the operating system (OS) is a piece of software that is there to manage all of the software and hardware of the computer. It is not generally considered to be a single program, but a series of programs and utilities that can make this happen. Most of the time, in a…
Currently there are only about 5 different versions of Operating Systems, with several sub-versions. They are: Windows MacOS iOS Android Unix/Linux Now, technically Unix/Linux are different, and there are variations of these, but fundamentally at a high level they are the same. There are some others out there, but they are rare and often on…
Now that we’ve looked at a Intro to Search and have a basic idea of how a search engine works, now we need to look at what we can do to improve our own search results – i.e. those things that get returned when you type what you want into the search engine. Knowing that…
So we looked in an Intro to Search at why people need to search. But how do search engines work? For example, did you know that Google estimates that they only know about 40% of the web pages out there? But how did they learn about all those other pages? Well, lets look at what…
Do you know how many websites are on the Internet? To be honest, no one really knows, but the best guess is around 1.6 BILLION, and that was in 2018. Usually that number is going up. After all, it only takes a few bucks to create a website, if you aren’t using one of the…
