After my recent blog post on the IEEE Milestone event for Hewlett-Packard’s HP35, the world’s first pocket scientific calculator that took the scientific and engineering worlds by storm and banished ...

The 9100A was a product of a time when HP was still innovating. The company was barely 30 years old that year, and it would follow up their newborn PC with other firsts in personal computing.

This makes me feel old. As Steve Leibson reports, “This year marks the 40th anniversary of HP’s entry into the calculator market…. First came the HP 9100A (with no ICs except in the magnetic card ...

In 1968 HP unveiled the HP-9100A, which they billed as a calculator but Science magazine calls it the first personal computer. This sets the stage for the pedigree of HP innovations.

Hewlett-Packard purchased a new recreation area 21 miles west of Loveland with its entrance off of U.S. 34 at Loveland Heights. ... the 9100A, was done at the Loveland site.