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Tag: history

Happy 30th Birthday to the Portable PC

The portable computer was born 30 years ago this weekend, when Adam Osborne unveiled the Osborne 1 in San Francisco.

Osborne, a journalist and book author, made the transition to entrepreneur on the strength of his personality, ambition and vision. And for a short few months, his computer company was on top of the world, with one of the steepest revenue growth curves ever seen.… Read the rest

Nov. 2, 1815: Boole Born, Boolean Logic Logically Follows

1815: English mathematician George Boole, who would help establish what is now known as Boolean logic, is born.

Boole’s breakthrough was the insight that logic, which had previously been considered a branch of philosophy, was actually closer to mathematics. All you needed to do was express logical problems in a symbolic format, and they could be solved in a way similar to mathematical problems.… Read the rest

October 7, 1954: IBM Gets Transistorized | This Day In Tech | Wired.com

1954: IBM builds the first calculating machine to use solid-state transistors instead of vacuum tubes.

IBM already had a business selling calculating machines, and it was humming along quite nicely. The IBM 604 Electronic Calculating Punch, which IBM introduced in 1948, was a desk-sized cabinet that ate and spat out punch cards in its single-minded mission of calculating math problems — 20 to 40 addition, subtraction, multiplication or division problems for each card.… Read the rest

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