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The TI-85 is a graphing calculator made by Texas Instruments based on the Zilog Z80 microprocessor. Designed in 1992 as TI's second graphing calculator (the first was the TI-81), it was replaced by the TI-86, which has also been discontinued.

Key facts

Calculator.name
TI-85
Calculator.image
TI85 graphing calculator.jpg
Calculator.type
Graphing calculator
Calculator.entry
D.A.L.
Calculator.manufacturer
Texas Instruments
Calculator.introduced
1992
Calculator.discontinued
1997
Calculator.successor
TI-86
Calculator.processor
Zilog Z80
Calculator.frequency
6 MHz
Calculator.memory_user
28 kB of RAM
Calculator.display_size
128×64 pixels, 21×8 characters
Calculator.supply
4 AAA,1 CR1616 or CR1620 (backup battery)

via Wikipedia infobox

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Encyclopedic overview

5 sections
Contents
  • Assembly programs
  • Technical specifications
  • See also
  • References
  • External links

The TI-85 is a graphing calculator made by Texas Instruments based on the Zilog Z80 microprocessor. Designed in 1992 as TI's second graphing calculator (the first was the TI-81), it was replaced by the TI-86, which has also been discontinued.

The TI-85 was significantly more powerful than the TI-81, as it was designed as a calculator primarily for use in engineering and calculus courses. Texas Instruments had included a version of BASIC on the device to allow programming. Each calculator came with a cable to connect calculators (simply a three-conductor cable with 2.5 mm phone connectors on each end). Another cable known as the TI-Graph Link was also sold, along with appropriate software, to connect the calculator to a personal computer. These cables made it possible to save programs and make backups.

Excerpted from Wikipedia’s “TI-85” article, available under the CC BY-SA 4.0 licence.

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