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So far Jon Johansson has created 10 blog entries.

Error Bars in Excel

Error bars on a chart/graph provide a visual representation of our uncertainty of knowledge about the values of the data points. These are helpful in understanding the accuracy of our data and have the benefit of being relatively easy to interpret. We are going to discuss how to add error bars to charts in Excel [...]

By |2020-10-22T17:59:21-06:00October 22nd, 2020|Excel, Tutorials and How-Tos|0 Comments

Instructor Led Online Teaching

Videoconferencing is fairly old technology now. There have been a variety of expensive commercial systems available, but the system that most people may be familiar with is probably Skype™ by Microsoft. Since 2003 Skype™ has allowed people to see and talk with friends, relatives and colleagues using computers and eventually tablets and phones. The software [...]

Encryption – Part 1 – The Caesar Cipher

Encryption is one of many Protective Technologies that help keep us safe while using the Internet. Today's encryption methods are quite sophisticated compared to those of the past, but before going into more modern methods, let’s look at the general concept.  Caesar Cipher: One of the oldest encryption methods require sharing a rule between parties [...]

By |2019-09-27T18:03:12-06:00October 9th, 2019|General, Internet, Remarks on Technology|0 Comments

The Technology Layer Cake: Users, Apps, OS and Hardware

Today's technologies have a lot in common, believe it or not. Whether you use your smartphone for most of your interaction with the Internet, or spend your day working on a laptop or a fancy desktop computer with lots of storage space and a powerful graphics card, these technologies have very similar structures. These devices [...]

By |2019-09-24T18:59:39-06:00September 25th, 2019|Devices, Operating Systems, Remarks on Technology|0 Comments

The Cost of a Smartphone

Today's the big day - the iPhone 11 is officially available for purchase from Apple stores and our friendly cell network providers. A question that we all face is whether to buy the phone outright and get a Bring Your Own Phone plan from our provider, or to buy the phone with a contract. In [...]

By |2019-09-23T18:23:30-06:00September 20th, 2019|Apple, Devices, Phones|0 Comments

iOS 13 is Almost Here

Apple Software Update on my Windows 10 computer popped up today with this notice to install an new version of the iTunes software. The notes say: "This update adds support for iOS 13 and iPadOS devices." Yay!! So after updating iTunes on my computer, it is ready to install the latest operating system on my [...]

By |2019-09-16T17:25:51-06:00September 16th, 2019|Apple, Operating Systems|0 Comments
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