TI-55

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TI-55
Calculator
Type	Programmable
Manufacturer	Texas Instruments
Introduced	1977
Discontinued	1977
Precision	Calculator Precision
Display Type	Light-Emitting Diode
Display Size	8+2
CPU
Processor	TI TMC1503NL
Programming
Other
Power supply	Power supply
Weight	0.18 kg
Dimensions	1458033

TI-55-II, revised version with LCD

The TI-55 is a programmable calculator first manufactured by Texas Instruments in 1977. It had an LED display,^[1] and weighed 6.4 ounces (180 grams). It was programmable to hold up to 32 key-codes that would allow the user to repeat simple calculations with different values.^[2]

References

v t e Texas Instruments calculators

Z80-based graphing	TI-73 TI-81 TI-82 TI-83x TI-84x TI-85 TI-86

M68k-based graphing	TI-89 TI-92x and Voyage 200 PLT

ARM-based graphing	TI-PLT (canceled) TI-Nspire–TI-Nspire CAS

Other graphing	TI-80

Non-graphing programmable	TI-55 TI-57x TI-58x TI-59 TI-68 TI-74 TI-95 (PROCALC)

Scientific models	TI SR-50 TI-30 TI-32 TI-34 TI-35 TI-36

Financial models	Business Analyst series

Other models	TI-108 TI-7 TI-10 TI-12 TI-15 TI-1030 TI-1031

Related	TI-BASIC Calculator-Based Laboratory Texas Instruments signing key controversy

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