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The gun data computer was a series of artillery computers used by the U.S. Army for coastal artillery, field artillery and anti-aircraft artillery applications. For antiaircraft applications they were used in conjunction with a director computer.
Automated Firearms Identification has its roots in the United States, the country with the highest per capita firearms ownership. [1] [2] In 1993, the Federal Bureau of Investigation commissioned Mnemonics Systems Inc. to develop Drugfire, which enabled law enforcement agencies to capture images of cartridge casings into computers, and automate the process of comparing a suspect cartridge ...
Later, card readers that read cards serially, column by column became more common. Card punches necessarily run more slowly to allow for the mechanical action of punching, up to around 300 CPM or 400 characters per second. [5] Some card devices offer the ability to interpret, or print a line on the card displaying the data that is punched ...
Example of a ballistic table for a given 7.62×51mm NATO load. Bullet drop and wind drift are shown both in mrad and MOA.. A ballistic table or ballistic chart, also known as the data of previous engagements (DOPE) chart, is a reference data chart used in long-range shooting to predict the trajectory of a projectile and compensate for physical effects of gravity and wind drift, in order to ...
The QuickLOAD interior ballistics predictor program also contains the external ballistics predictor computer program QuickTARGET. QuickTARGET is based on the Siacci/Mayevski G1 model and gives the user the possibility to enter several different BC G1 constants for different speed regimes to calculate ballistic predictions that more closely ...
Ballistic data for up to five different weight bullets can be specified; it may be provided in either SI or English units, but this choice must be consistent for all five sets. The x in the field name should be replaced with 1–5 as displayed in the template format shown above (e.g. bw1, bw2, btype1, btype2, vel1, vel2, en1, en2 , etc.):
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1971: The IBM 129 Card Data Recorder (keypunch and auxiliary on-line card reader/punch) is the last, or among the last, 80-column card unit record product announcements (other than card readers and card punches attached to computers). 1975 Cardamation founded, a U.S. company that supplied punched card equipment and supplies until 2011. [65]