May 11, 1951: RAM Is Born article tells Jay Forrester files a patent application for the matrix core memory that day. A team at Massachusetts Institute of Technology led Jay Forrester developed a three-dimensional magnetic structure code-named Project Whirlwind. In short, magnetic core memory was the first random access memory that was practical, reliable and →
It has been hard to miss the story of the Apple engineer who left a rumored prototype of 4G iPhone at a beer garden. Some time later Gizmodo got hold of that 4G iPhone and posted a report on it on-line (interesting stuff). Scott Adams, the man behind Dilbert comic has made a two comic →
You might know my Time Domain Reflectometer (TDR) signal source circuit published on ePanorama.net many years ago. It has worked well for me many times. Some years ago I made a modification to my own TDR unit. This simple modification allows me to use the same box also as a signal source with a wide →
Imagine, putting on a glove and you can play the piano. Colorado State University students have created such a glove that detects the bend of a finger and plays a corresponding piano note. Gadget Freak Case #162: Magic Fingers Tickle the Ivories article tells you the details of their design. There is also a video →
I have been posted many articles related to LED lighting. And I think I will post more articles related to this quickly evolving field of electronics. So I created a category LEDs for all articled related to LED technologies. →
TESS, a Taiwanese manufacturing company, recently introduced a 7W LED bulb that, at 560 lumens, can serve as a replacement for a typical 500-lumen, 40W incandescent bulb. Tear-down: inside a 7W LED light bulb article shows you what is inside that lamp. This LED lamp bulb holds seven 1W LED packages (a package of multiple →
Manager’s guide to digital design article from EDN magazine is for all those hardworking engineering managers who just want a simple, one-page summary of everything they need to know about digital design. Here are some picks from article: GROUND: mythical electrical object that absorbs unlimited quantities of electrical current. Ground exists in Spice but nowhere →
The iPad The iPad is a tablet computer developed by Apple Inc. Since the announcement of it in January 2010 it has been one of the most talked about technology gadget. Understanding the iPad’s Industrial Design article tells that iPad is the culmination of Jon Ive’s quest for the ultimate industrial design, a search for →
The demand for larger displays in small handheld devices makes choosing the right touch technology critical. Choosing a touch technology for handheld-system applications tells how different touch technologies work. The article is also available in pdf format. →
New advances in optical communications are always interesting. IBM Scientists Create Ultra-Fast Device Which Uses Light for Communication between Computer Chips and IBM jumps ‘last hurdle’ to on-chip optical communication articles tell that IBM scientists few weeks ago unveiled a significant step towards replacing electrical signals that communicate via copper wires between computer chips with →