DATAMATH CALCULATOR MUSEUM

Texas Instruments TI-95 PROCALC

Date of introduction:	1987	Display technology:	LCD dot matrix
New price:		Display size:	16 (10 + 2)
Size:	3.7" x 8.0" x 1.0"
Weight:	11 ounces	Serial No:	0000202
Batteries:	4*AAA	Date of manufacture:	mth 05 year 1987
AC-Adapter:		Origin of manufacture:	Taiwan
Precision:	13	Integrated circuits:	TMC70011, HN61256, HM6264
Memories:	900-0
Program steps:	0-7200	Courtesy of:	Joerg Woerner

May we call this huge portable computer a calculator ? No doubt, the TI-95 Procalc introduced in the year 1986 is a powerful, keystroke programmable calculator. Some ideas of the early TI-58 calculator and the never introduced TI-88 influenced the TI-95 PROCALC:

You’ll find an expansion port to install either RAM or ROM-cartridges and you may connect a printer PC-324 to the calculator.

Already without any expansion the TI-95 features up to 8 kByte of memory, the expansion adds another 8 kByte. The display uses a 5*7 dot matrix instead the normal 7-segment design to give full alphanumerical capability. A close relative to the TI-95 PROCALC, the TI-74 BASICALC explains the typewriter style keyboard.

The TI-95 PROCALC System uses the following components:

PC-324	24-column thermal printer
AC9201	Mains adaptor for PC-324
TP-324	Thermal paper for PC-324
CI-7	Cassette interface
CM-8	8k Constant Memory Module (RAM)
Mathematics	Library (ROM)
Statistics	Library (ROM)
Chemical	Library (ROM)

Only 4 years later Texas Instruments introuced with the TI-81 their first Graphing calculator and it took another 4 years to get the unbelievable TI-92.

Emulating a TI-95

If you don't own a TI-95 calculator - emulate it !

If you have additions to the above article please email: joerg@datamath.org.