TI-36X Solar

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TI-36X Solar, 1993 Revision
TI-36X Solar, 1993 Revision
TI-36X Solar, 2004 Revision
TI-36X Solar, 2004 Revision

The TI-36X Solar was originally introduced in 1991 as an enhancement to the TI-36 Solar. In 1993 Texas Instruments introduced an updated version with rubber keys and improved solar cells. In 1996 another update was released, which returned to the solid plastic buttons and introduced a sleeker case. A completely redesigned exterior was quietly released in 2004, which brings all of TI's scientific calculators to the same design scheme.