Texas Instruments TI-68

Serial number	RCI2591: 25th week 1991, Rieti, Italy
Accessories	Protective plastic cover with quick reference card
Condition	Excellent front, some minor scratches on the back from normal usage. However, a considerable number of the LCD-matrix dots doesn't work! As such the calculator is not usable.
Repairs, Comments	19.12.2002: Forcefully pried open the unit and tried to repair the display. However, there's just a huge ribbon cable with no visible defects.
Acquired	12.12.2002

Serial number	RCI 0792: 7th week 1992, Rieti, Italy
Accessories	Protective plastic cover with quick reference card
	Texas Instruments TI-68 Manual (French/German), 1989
Condition	Absolutely excellent!
Repairs, Comments	31.1.2003 Removed a name sticker from the plastic cover.
Acquired	27.1.2003

Type, Precision, Input mode	Scientific, 10 BCD digits, exponent ±99, Algebraic
Programmable	No, but it is possible to define functions
Memory	Approx. 36 memory locations: One location can hold a real number or variable names or parts of a formula.
Display	12 digit 4x7 pixel black & white LCD dot matrix
Special features	Hexadecimal, binary and octal mode, bit operations, unit conversions, complex numbers, statistics, formulas, named variables, equation solver and much more.
Original Pricing, Production	$65, produced 1989-1999
Batteries	1 large button sized cell
Dimensions	Length 15cm, Width 7.4cm, Height 1.3cm
Links	Datamath Museum TI-68 Guidebook (PDF)
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