Selective Sequence Electronic Calculator

The ibm selective sequence electronic calculator ssec was an electromechanical computer built by ibm. The machine otherwise known as poppa was the first computer to combine electronic computation with stored instruction.

Ibm Ssec

Terms and conditions.

Selective sequence electronic calculator. Us2636672a us71642a us7164249a us2636672a us 2636672 a us2636672 a us 2636672a us 71642 a us71642 a us 71642a us 7164249 a us7164249 a us 7164249a us 2636672 a us2636672 a us 2636672a authority us united states prior art keywords electronic calculator sheets sequence electronic sheet filed jan prior art. Ibm went on to build its selective sequence electronic calculator ssec to both test new technology and provide more publicity for the company s own efforts. Its design was started in late 1944 and it operated from january 1948 to august 1952.

701 bites sights. His first major project was to write a program to calculate positions of the moon. Designed built and placed in operation in only two years the ssec contained 21 400 relays and 12 500 vacuum tubes.

Ssec selective sequence electronic calculator. Ibm s enormous relay based calculator the ssec was one of a very small number of such machines usually designed to solve specific problems. Electronic calculator ssec 701 details.

Ibm s selective sequence electronic calculator ssec was built at ibm s endicott facility under the direction of columbia professor wallace eckert and his watson scientific computing laboratory staff. During his first three years he worked on the selective sequence electronic calculator ssec. Ibm selective sequence electronic calculator ssec title.

The 13 500 vacuum tube computer contained 21 000 relays. 701 feeds speeds. Selective sequence electronic calculator download pdf info publication number us2636672a.

Ibm selective sequence electronic calculator ssec date. We searched our database and could not find a definition other than selective sequence electronic calculator for ssec. Using the archives site.

If you have more information or know of another definition for ssec. 1948 at ibm world headquarters ibm dedicated the selective sequence electronic calculator ssec. Installation of the first 701.

Laser wikipedia2 the selective sequence. When placed in operation in 1948 and for some time thereafter it was the most flexible and powerful computer in existence. The selective sequence electronic calculator ssec was the first machine to combine electronic computation with a stored program and the first machine capable of operating on its own instructions as data.

There may be many popular meanings for ssec with the most popular definition being that of selective sequence electronic calculator. The ssec is shown here at ibm world headquarters 590 madison avenue new york city new york.

The Aesthetics Of Early Computing Object 2 Queerfragments