Calculators are computers with arithmetic capabilities typically equipped with keypads for accepting user input and display panels for presenting calculations and results. Present-day calculators already feature graphing, drawing, and data storing functions but they remain basically focused on handling numerical rather than alphabetical data and data processing.
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Aaron Adding Machines
Re-thinking and re-building the electronic calculator using old-fashioned heavyweight switches, cranks, and levers mounted in antique chassis.
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Fryed Software
News, projects, message board, and programs for various TI models.
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RAID Calculators
Free, online RAID calculators to determine RAID capacity, usable capacity, iOPS and more for standard RAID levels as well as ZFS RAID.
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Techno-Plaza Calculator Information
Features Computer Algebra System (CAS) enhanced calculators including images and information on the features.
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Texas Instruments
Official site of TI calculators.
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ticalc.org
Find programming tutorials, articles, and thousands of files to download for TI graphing calculators.
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Wize Calculator Reviews
Reviews and pictures of engineering, trigonometry, graphic, and ordinary school calculators.