The TI-83 series of graphing calculators is manufactured by Texas Instruments. The original TI-83 is itself an upgraded version of the TI-82. Released in 1996, it is one of the most used graphing calculators for students. TI replaced the TI-83 with the TI-83 Plus calculator in 1999, which included flash memory, enabling the device’s operating system to be updated if needed, or for large new Flash Applications to be stored, accessible through a new Apps key.
The Flash memory can also be used to store user programs and data. In 2001 the TI-83 Plus Silver Edition was released, which featured approximately nine times the available Flash memory, and over twice the processing speed (15 MHz) of a standard TI-83 Plus.
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