Starts with a V

June 18, 2013 VHDL (or VHSIC Hardware Description Language – VHSIC stands for Very High Speed Integrated Circuit) is a language that resembles Ada. A few weeks ago I spent a good deal of time talking about Verilog – a description language used to design FPGA circuits. However, several people took me to task for not making much mention of …

The 555 Timer Was Just The Beginning For Hans Camenzind

Editor’s Note: Hans Camenzind was selected for the Engineering Hall of Fame in our inaugural induction, which appeared in our 50th Anniversary issue in 2002. He died on August 8, 2012. His son, Peter, has summarized his career for us. Hans Camenzind is well known for the design of the 555 timer, but he accomplished much more in his lifetime. …

Understanding Trusted Computing From The Ground Up

Why is trust related to computing such a big deal? Imagine if the data on your computer is visible to others. Or, what if others have changed the data on your computer? Trust doesn’t only refer to “secrets,” it also encompasses the ability to count on your computer to act the way you expect it to, without unanticipated crashes …

Slideshow: Apple iPad 2 Teardown

With tablets taking a turn toward ever-tighter form factors and packaging — witness the excitement surrounding the just-launched Amazon Kindle Fire — we thought it would be interesting to go back and look at a recent teardown of the sector’s still-champion, the Apple iPad 2. UBM TechInsights, our sister organization, conducted a teardown of the Apple iPad 2 3G version …

Transceivers to Conquer the Terahertz Frontier

If we credit the integrated circuit with one thing, it should be the taming of the electromagnetic spectrum. If you want to create or capture visible photons, there are plenty of compact devices to choose from, incorporating everything from miniature photodiodes and lasers to LEDs and slim charge-coupled devices. And if you want to pick up or send a radio …