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Casio CD-401, one of the first Data Bank watches from 1983 A Casio DBC-610 Databank calculator watch Casio DBA-800 Databank, the world's first phone dialer watch. Casio Databank (often styled as CASIO DATA BANK) is a series of digital watches and electronic personal organizers manufactured by Casio. The watches allow data storage for names and ...
In USSR, the first electronic calculator "Vega", which was produced from 1964, contains 20 decimal digits with seven-segment electroluminescent display. [ 15 ] In a simple LED package, typically all of the cathodes (negative terminals) or all of the anodes (positive terminals) of the segment LEDs are connected and brought out to a common pin ...
0.01–20 mm dial indicator. Probe indicators typically consist of a graduated dial and needle driven by a clockwork (thus the clock terminology) to record the minor increments, with a smaller embedded clock face and needle to record the number of needle rotations on the main dial. The dial has fine gradations for precise measurement.
ANITA Mk VIII. The ANITA Mark VII and ANITA Mark VIII calculators were launched simultaneously in late 1961 as the world's first all-electronic desktop calculators. [1] [2] Designed and built by the Bell Punch Co. in Britain, and marketed through its Sumlock Comptometer division, they used vacuum tubes and cold-cathode switching tubes in their logic circuits and nixie tubes for their numerical ...
The GPS week number rollover is a phenomenon that happens every 1,024 weeks, which is about 19.6 years. The Global Positioning System (GPS) broadcasts a date, including a week number counter that is stored in only ten binary digits , whose range is therefore 0–1,023.
The IDI is a standard tool that governments, operators, development agencies, researchers and others can use to measure the digital divide and compare ICT performance within and across countries. Having the role to analyze the level of development of the information and communication technology sector (ICT), the ICT Development Index (IDI) is a ...
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FRASER (The Federal Reserve Archival System for Economic Research) is a digital archive begun in 2004 to safeguard, preserve and provide easy access to the United States’ economic history—particularly the history of the Federal Reserve System—through digitization of documents related to the U.S. financial system. [6]