Introduction Over the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up ...

Calculator apps on your phone or computer aren't much better. The main problem with these programs is that they try to make themselves look and work like handheld calculators.

Before there were PDAs or Wizards, there was the H-P calculator, arguably the first handheld computer. Millions have been sold, and yes, they’re still around. What’s more, they’re getting ...

Calculators, a no-no in classrooms a few decades ago, are everywhere these days, with supporters saying the small hand-held devices have helped revolutionize math education.Since the mid-1980s ...

Since then, the basic interface of standard handheld calculators hasn’t changed much. It was released for commercial sale in 1970, weighed 45 ounces and had ten numerical buttons from zero to nine.

That same year, TI followed with their own calculator-on-a-chip and in 1972 TI started releasing its own calculators. HP-35, the first scientific calculator, by Seth Morabito CC BY 2.0 ...

HP says calculator-handheld combo doesn't add up Hewlett-Packard pulls the plug on Xpander, deciding that now is not the time to merge calculators with handheld computers.

The handheld calculator received plenty of 40th birthday celebrations in 2007 though, and the introduction of the CAL-TECH prototype into the Smithsonian was rewarding for Merryman nonetheless.

In the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up desktop calculating ...