Archive for the ‘Computer History’ Category:

2020-12-23 Harald Bluetooth And Our Cellphones

Tom Scott tells us the story of the Danish king who united the Scandinavians. How the ‘personal area network’ ln our cellphones got the name Bluetooth. He shows us the ancient runestones, one by Harald Bluetooth. https://youtu.be/VdmQp9M9jUo

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2017-06-01 How To Disable 5V Regulator?

I’ve been getting PC boards that have all the chips operating at 5 volts, but the input voltage has to be between 7 and 12 volts.  The board has a 5 volt regulator on the board, and often it is a surface mount chip.  But I have dozens of 5 VDC, 1/2 amp AC adapters,

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2015-11-24 AT&T or at&t Article

The day after tomorrow is turkey day, and I have been trying to read some online things but I keep getting distracted. One article I found on Investopedia is about at&t, as its logo is now spelled, but was known as AT&T for more than a century.  The article gives a bit of at&t’s history

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2015-06-19 U of Cambridge Computer

The University of Cambridge computer circa 1949. Back then the computer took up the whole room. It’s difficult to imagine that nowadays we have thousands of times more computing power in our pocket.

2014-10-04 MS Win 8 Dying Away

An article appeared in The Register about the percentages of Windows OSes out there being used.  I was surprised at how low the percentage of Win 8 & 8.1 were.  It looks as if Win 8/8.1 are going to be this decade’s Vista: treated as a hornets’ nest and completely avoided, even though the prospective

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2013-04-11 A Complete history of Mainframe Computing

I found this link to a slide show called A Complete history of Mainframe Computing by R. Arzoomanian.  The pictures are fantastic. I thought this tidbit was very remarkable: “In fact, by the time it was retired in 1955, it was estimated that the ENIAC by itself did more calculations than all of humankind did up

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Protected: 2013-04-08 SAC’s Hewlett Packard Minicomputer

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