Cryptologic Bytes

"On This Date in History" Calendar

1944: "The Harvard Mark 1"

Friday, August 7, 2020
1944: "The Harvard Mark 1"

7 August 1944: The first fully automatic computer, the "Harvard Mark I," formally began operations. In the photo: Grace Hopper working on the Mark-I at Harvard University during WWII. Photo from @GillianJacobs

The Harvard Mark I was developed by IBM and Howard Aiken. It remained in use at Harvard until 1959 even though other machines had surpassed it in performance providing vital calculations for the Navy during WWII. Enlisted in the Navy in 1943, Grace Hopper was assigned to the computation project as third in command becoming one of the four original "coders," the first computer programmers.

Join or renew a membership

Anyone, anywhere can be a member of the NCMF.

BECOME A FOUNDER

The Founders' Group spearheads the capital campaign to build the new Cyber Center for Education and Innovation - Home of the National Cryptologic Museum.

 

More Info »

Donate to the CCEI-NCM

Be a part of the future - help us build the Cyber Center for Education and Innovation - Home of the National Cryptologic Museum.

VISIT THE ARCHIVES

Check out the Cryptologic Bytes Archives for a wide variety of articles on all topics related to cryptology, codes and ciphers, related publications, Museums, and more.