Gerard Holzmann


Tales from the Encrypt

Safeguarding computer information from unprivileged eyes isn't a new concept. Encryption devices were invented by the Ancient Greeks and Thomas Jefferson.  Read story

Tallying Up

A look at the medieval precursor to the credit card.  Read story

The Ties That Bound

This story looks at the long history of long distance networking, a concept that predates the Greeks.  Read story

Castles in the Air

Today's firewall software is comparable to the security systems of ancient castles--it assesses the characteristics of an individual, and then grants or deni...  Read story

Collision Course

A primer on how train wrecks of the past paved the way for safe data transfer today.  Read story

MEMS the Word

MEMS, which is short for micro-electro-mechanical systems, may be almost too small to see, but they could play a big role in the future.  Read story

Ports of Call

Serial and parallel ports, the holes that transmit data from inside a PC to the outside world, were invented in the nineteenth century. Morse's patented tele...  Read story

Just the Fax

Believe it or not, today's fax machine isn't a new technology. The first faxes traveled electronically over telegraph wires more than a century ago.  Read story

Taking Stock

Nowadays, fraudulent online stock-trading schemes are common. But even before the first electric telegraph, two bankers committed the equivalent of modern-da...  Read story

And the Credit Goes to?

It's not the inventor toiling in his lab who becomes famous. It's the one who makes the biggest splash.  Read story

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