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MIL-STD-810 is maintained by a Tri-Service partnership that includes the United States Air Force, Army, and Navy. [2] The U.S. Army Test and Evaluation Command, or ATEC, serves as Lead Standardization Activity / Preparing Activity, and is chartered under the Defense Standardization Program (DSP) with maintaining the functional expertise and serving as the DoD-wide technical focal point for the ...
Happy drives are series of disk drive enhancements for the Atari 8-bit and Atari ST computer families produced by a small company called Happy Computers. Happy Computers is most noted for the add-in boards for the Atari 810 and Atari 1050 floppy disk drives, which achieved a tremendous speed improvement for reading and writing, and for the ability to backup floppies.
Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [1]
The Pennsylvania Railroad (PRR) N1s was a class of 2-10-2 "Santa Fe" steam locomotives built for the Pennsylvania's Lines West. 60 engines were built between December 1918 and November 1919, and worked heavy mineral freight to and from ports on the Great Lakes until their retirement in the late 1940s. All examples were scrapped by 1950.
An Atari 810 floppy disk drive with a worn door-open button. The toggle switch in the upper left is a user modification. The Atari 810 is the official floppy disk drive for the Atari 400 and 800, the first two models of Atari 8-bit computers. It was released by Atari, Inc. in 1980. The single-density drive provides 90 kB of storage.
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Military grade. A thirteenth generation Ford F-150 used by the United States Marine Corps to promote recruitment. This generation of Ford F-Series was infamously marketed as using "military-grade aluminum ", despite no such thing existing. " Military grade " (alternatively " military-grade " or " mil-spec ") is a buzzword commonly used in ...
2-10-4. Under the Whyte notation for the classification of steam locomotives, a 2-10-4 locomotive has two leading wheels on one axle, usually in a Bissel truck, ten coupled driving wheels on five axles, and four trailing wheels on two axles, usually in a bogie. These were referred to as the Texas type in most of the United States, the Colorado ...