Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
HP.com home
About us  >  History  >  Virtual museum  >  Personal systems

HP-45 advanced scientific pocket calculator, 1973


Company information

» About us
» History
  » HP Timeline
    » Virtual museum
»Early instruments
» Personal systems
» Imaging and printing
» Chronological order
    » HP garage
    » Measure Magazine
    » HP Journal
    » Origins video
    » FAQ

Content starts here

» Virtual tour

Take this product for an interactive spin. The QuickTime plug-in is needed to view this presentation.

Click to go to download the QuickTime plugin.

» Six views

View this product from six static angles.
Click to go to larger photo of the Hewlett-Packard-45 advanced scientific pocket calculator.
The HP-45 was HP's third handheld electronic calculator and the second scientific model.

The HP-45 was HPs second scientific handheld electronic calculator. It added many features to the HP-35, including numbered data registers, store and recall register arithmetic, built-in conversion constants and selection of trigonometric modes.

The HP-45 contained a hidden timer. Originally, the designers intended to include a timer, but they ended up leaving out the quartz oscillator which was necessary to make the timer accurate. Therefore, while the timer software was left built-in, the timer was not accurate, and was never exposed as a user feature.

Printable version
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 2012 Hewlett-Packard Development Company, L.P.