Design Con 2015
Breaking News
Comments
Max The Magnificent
User Rank
Blogger
Aluminum Memory Cards
Max The Magnificent   2/12/2014 4:54:03 PM
NO RATINGS
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
CEO
Re: Aluminum Memory Cards
Paul A. Clayton   2/12/2014 7:17:04 PM
NO RATINGS
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
Blogger
Re: Aluminum Memory Cards
Max The Magnificent   2/13/2014 9:25:40 AM
NO RATINGS
@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
Blogger
Zynq Design From Scratch
Max The Magnificent   2/12/2014 5:00:04 PM
NO RATINGS
Hi Sven, I forgot to mention your new blog -- Zynq Design From Scratch



svenand
User Rank
Blogger
Re: Zynq Design From Scratch
svenand   2/12/2014 5:11:05 PM
NO RATINGS
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.

 

sixscrews
User Rank
CEO
Strowger switch invention motivation
sixscrews   2/13/2014 11:57:24 AM
NO RATINGS
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...

wb/ss

David Ashton
User Rank
Blogger
Re: Strowger switch invention motivation
David Ashton   2/14/2014 3:20:11 AM
NO RATINGS
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....



Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

DIY Practical Joke Project Idea
Max Maxfield
8 comments
I just received a rather interesting email from a member of the EETimes community who prefers to remain anonymous. This message was as follows:

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...