File:TRADIC computer.jpg
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Summary
| Description |
English: TRADIC (for TRAnsistor DIgital Computer or TRansistorized Airborne DIgital Computer), the first transistorized computer in the USA, completed in 1954. The computer was built by Jean Howard Felker (visible at left) at Bell Labs for the United States Air Force, intended as a prototype for aircraft navigation and bomb targeting computers. Alterations to image: a small piece is torn out of the paper original along lower left edge. |
| Date | |
| Source | Retrieved January 24, 2015 from Radio-Electronic Engineering magazine, Ziff-Davis Publishing Co., New York, Vol. 24, No. 5, May 1955 , cover on http://www.americanradiohistory.com |
| Author | Unknown author |
| Permission (Reusing this file) |
This 1955 issue of Radio-Electronic Engineering magazine would have the copyright renewed in 1983. Online page scans of the Catalog of Copyright Entries, published by the US Copyright Office can be found here. Search of the Renewals for Periodicals for 1978 and later show no renewal entries for Radio-Electronic Engineering. Therefore the copyright was not renewed and it is in the public domain. |
Licensing
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This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:07, 25 January 2015 | | 703 × 973 (199 KB) | Chetvorno | User created page with UploadWizard |
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