Embedded Systems Conference
Breaking News
Max The Magnificent
User Rank
Aluminum Memory Cards
Max The Magnificent   2/12/2014 4:54:03 PM
Just when you think you've heard it all -- something new comes along. I must admit that I'm constantly amazed at the ingenuity of the old designers -- some of the things they came up with just blow my mind...

Paul A. Clayton
User Rank
Re: Aluminum Memory Cards
Paul A. Clayton   2/12/2014 7:17:04 PM
I wonder what the density was compared to the core rope memory that was used for the Apollo Guidance Computer. Presumably programming a board of such memory was faster (and perhaps less error-prone) than rewiring a board of core rope memory, which would have improved debug cycle time. Perhaps such memory did not satisfy other requirements (e.g., speed), but it is also possible that the people at MIT were unaware of such alternatives. (As Seymour Cray stated: "One of the problems of being a pioneer is you always make mistakes".)

Max The Magnificent
User Rank
Re: Aluminum Memory Cards
Max The Magnificent   2/13/2014 9:25:40 AM
@Paul: As Seymour Cray stated: "One of the problems of being a pioneer is you always make mistakes"

In that case, I must be like a one-man version of Lewis & Clark, because I've made enough mistakes to found a nation LOL

Max The Magnificent
User Rank
Zynq Design From Scratch
Max The Magnificent   2/12/2014 5:00:04 PM
Hi Sven, I forgot to mention your new blog -- Zynq Design From Scratch

User Rank
Re: Zynq Design From Scratch
svenand   2/12/2014 5:11:05 PM
Thanks Max, I have just started my blog about Zynq-7000 and playing with the ZedBoard. I hope to add much more information the coming weeks.


User Rank
Strowger switch invention motivation
sixscrews   2/13/2014 11:57:24 AM
I have heard this story from other sources, and picked the following off Wikipedia:

"According to some accounts, Alman Strowger, an undertaker, was motivated to invent an automatic telephone exchange after having difficulties with the local telephone operators, one of whom was the wife of a competitor. He was said to be convinced that she, as one of the manual telephone exchange operators was sending calls "to the undertaker" to her husband."

So, perhaps a call for the dead motivated a 'live' invention...


David Ashton
User Rank
Re: Strowger switch invention motivation
David Ashton   2/14/2014 3:20:11 AM
As recently as 12 years ago I lived in a small town in Zimbabwe that still had a Strowger exhange.  I did some training on them earlier in life and went into some of the larger exhanges in Harare (the capital).  The techies let me into the one in my small town a few times and it was nice hearing the rhythm of the switches again.  Mr Strowger did a good job....

Autonomous vehicles on our roads soon? What could go wrong with that? Listen in as EE Times' Junko Yoshida asks industry experts what the intended and unintended consequences will be.
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
The LTC®4015 is a complete synchronous buck controller/ ...
The LTC®2983 measures a wide variety of temperature sensors ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...