See more objects with the tag numbers, calculation, mathematics, keys, calculator.

Object Timeline


  • Work on this object began.




  • You found it!

HP-35 Scientific Pocket Calculator

This is a Scientific Pocket Calculator. It was designed by Edward Liljenwall and the design director was Dave Cochran and manufactured by Hewlett-Packard. It is dated 1972 and we acquired it in 2017. Its medium is molded plastic, metal, electronic components. It is a part of the Product Design and Decorative Arts department.

In 1971, William Hewlett challenged his engineers to miniaturize the company’s 9100A Desktop Calculator, a forty-pound machine, into a device small enough to fit into his shirt pocket. The following year, Hewlett-Packard released the HP-35, the world’s first scientific pocket calculator capable of advanced calculations. The HP-35 name refers to the device’s 35 buttons. The HP-35 was the first scientific calculator to be sent to space, aboard the Skylab space station in the 1970s.

This object was donated by Robert Greenberg. It is credited Gift of Robert M. Greenberg.

  • Logos 59 Calculator
  • molded plastic, metal.
  • Gift of Barry Friedman and Patricia Pastor.
  • 1986-99-1

Our curators have highlighted 1 object that are related to this one.

Its dimensions are

H x W x D: 3 × 7.5 × 15 cm (1 3/16 × 2 15/16 × 5 7/8 in.)

Cite this object as

HP-35 Scientific Pocket Calculator; Designed by Edward Liljenwall (American, 1943 - 2010); molded plastic, metal, electronic components; H x W x D: 3 × 7.5 × 15 cm (1 3/16 × 2 15/16 × 5 7/8 in.); Gift of Robert M. Greenberg; 2017-51-16-a/d

This object was previously on display as a part of the exhibition Bob Greenberg Selects.

There are restrictions for re-using this image. For more information, visit the Smithsonian’s Terms of Use page.

For higher resolution or commercial use contact ArtResource.

If you would like to cite this object in a Wikipedia article please use the following template:

<ref name=CH>{{cite web |url= |title=HP-35 Scientific Pocket Calculator |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=16 August 2022 |publisher=Smithsonian Institution}}</ref>