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The standard measure of speed is cards per minute, abbreviated CPM: The number of cards which can be read or punched in one minute. Card reader models vary from 150 to around 2,000 CPM. [3] [4] At 1200 CPM, i.e. 20 cards per second, this translates to 1,600 characters per second (CPS), assuming all 80 columns of each card encode information.
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A card reader is a data input device that reads data from a card-shaped storage medium and provides the data to a computer. Card readers can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals from connections made or interrupted by a card's punched holes or embedded circuitry, or electronic ...
A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card[ 1] or punched-card[ 2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines . Punched cards were widely used in the 20th century, where ...
A newspaper reader in Nepal, 2007. There is no recorded history of printed newspaper prior to Rana rule in Nepal. The first-hand press was imported by Jung Bahadur Rana after his visit to Europe; however, it was used only after 58 years for printing. It was used to print religious books and government notices. [1]
July 11, 2024 at 10:01 AM. The latest sign that inflation is cooling makes it more likely the Federal Reserve will be able to gain enough confidence to cut interest rates this fall. The odds of a ...
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July 11, 2024 at 9:45 AM. Falling gas prices drove a cooldown in consumer price increases last month, according to Bureau of Labor Statistics data released Thursday. The gasoline index fell 3.8% ...