Archive for the ‘computers’ Category:

2020-09-05 Tesla Sensors&Self Driving; Truth About Nikola

This YouTube video is about self driving but it shows and tells how the sensors do their jobs. LIDAR is too expensive. https://youtu.be/P8aTDusU7dw **************************** This YouTube video is about Nikola and its business model and about costs of hydrogen vs. batteries. Good. https://youtu.be/7ynupYBLlyA

2020-08-04 Microsoft Data Center Runs On Hydrogen

Microsoft Data Center test runs on hydrogen for 48 hours. See? Hydrogen is going to be an important part of the future of renewables. https://www.popularmechanics.com/science/amp33499249/microsoft-hydrogen-generator-test/

2020-06-15 Windows Apps On Chrome OS

We already can run Windows Apps on Wine on Linux. Maybe one day we’ll be able to get rid of Windows. https://www.theverge.com/platform/amp/2020/6/16/21293180/google-chrome-os-microsoft-office-windows-desktop-apps-support-parallels

2020-06-11 Optocouplers Don’t Always Protect

From FB comment Monty Ross It’s true that optocouplers are used for isolation. But I have seen whole sections of PC boards with a hole burned where the optocouplers used to be. It is incredible how much damage the power lines do to the PC boards due to high voltage spikes in the power. Transformers

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2018-09-01 Stop Plagiarizing And Be Self-sufficient

From FB group Arduino projects, 2018-09-01 Attilio Volpe This group is moderated and if you cause problems, you can be banned. But on Usenet newsgroups, where all this ‘social media’ stuff started decades ago, the groups were not moderated. If you made a mistake, you had hundreds of replies telling you to Shut the F***

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2018-08-31 An Old Software Saying

From FB group Bell Telephone… 2018-08-31 Gary Stoutenburg I love that comparison. 👍 There’s an old IT adage: “The first 90% of the software takes 10% of the time. The last 10% of the software takes 90% of the time.” The user interface is a big time and money sink, so a lot of corner

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2018-06-20 Don’t Ask To Share Software!

From FB group Arduino Projects Marcos Tulio Junior I think it is unethical for others to expect the coder to reveal his IP (intellectual property). There is nothing wrong with asking the coder for a link to open source software. But you are out of line when you expect others to do for you what

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2018-05-10 Malicious Chrome Extensions Again

Ars Technica article https://arstechnica.com/information-technology/2018/05/malicious-chrome-extensions-infect-more-than-100000-users-again/

2018-01-30 Elijah And His Unique Keyboard

At the college I worked at, they had a part-time internship program where students could get on the job experience for a semester.  One of our employees got her son a job as an intern in our department. His name was Elijah, but he didn’t like being called that, and went by “EJ”.  He was

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2017-09-23 Cellphone Charger Secret Circuit

Posted to FB Arduino group Sep 23 Mbihi Oliver Four hours is twice as long as 2 hours with the correct charger.  Here is a secret many don’t know:  Smartphones don’t necessarily charge at maximum, especially if they’re charged by a charger not made for their phone. Smartphones often have a sensing circuit that checks

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