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TI-55-II calculator, the first device I ever programmed

I recently bought a used TI-55-II on eBay. This is an old (early 80’s) Texas Instruments calculator, one the first programmable ones. I got it mostly for sentimental value, since I used to own one back in Brazil in 1983, my last year in high school. Looking Read More...
Posted Saturday, August 29, 2009 7:50 PM by josebda | 0 Comments
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The good old days of CP/M 2.2 on a TRS-80 with an 8-bit Z80 CPU

I was reading the news on the release of Windows 7 and stopped to think of the early days of my IT career and what an OS looked like then. I thought way back to one of the first microcomputer disk operating systems I ever used: CP/M. I actually remembered Read More...
Posted Friday, August 07, 2009 10:00 PM by josebda | 0 Comments
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Microsoft Technology Roadmap in Fortaleza, Brazil

It's becoming a habit. Every time I take a vacation in Brazil (more specifically in the city of Fortaleza, where I spent most of my life), the nice folks from Evolucao Informatica ( http://www.evolucao.com.br ) there invite me to deliver a presentation. Read More...
Posted Thursday, July 12, 2007 9:35 AM by josebda | 0 Comments
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