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About this product
Product Information
The Texas Instruments TI-80 includes a lot of math equations and functions that make it a useful graphing calculator for Algebra and Pre-Calculus students. This Texas Instruments calculator has a 64 X 48 pixels screen that displays 8-lines, each containing 16-characters. The handheld Texas Instruments TI-80 is powered by two CR2032 lithium batteries and comes with a protective case. The keys on this graphing calculator are large and color-coded, making it easy for you to locate specific functions. Packed with a 980 KHz CPU and 7K RAM memory this Texas Instruments calculator performs your tasks fast and even retains them for future recall.Product Identifiers
BrandTexas Instruments
MPNTI-80
UPC0030273680395
ModelTI-80
eBay Product ID (ePID)54849643
Product Key Features
Power SourceBattery
SizeHandheld
Key SizeRegular
TypeGraphing
Additional Product Features
Display TypeLarge
Additional FeaturesLast Digit Erase, Case Included
Digit Display128 Digits
Ratings and reviews
Most relevant reviews
- 04 Nov, 2015
Very underrated compact grapher.
The biggest surprise about the TI-80 is its size. TI never really played up how much smaller this thing is than all their other graphing calculators without sacrificing a lot of features. It's as wide as a 1992 era TI-36X solar and just under 3/4 of an inch taller. It's built well like all the other TI calcs and has a feature set somewhere between a TI-81 and TI-82. For the size, it's also a great scientific calculator with dot matrix display, which was much less common when it came out. For the price you can pick one of these up now, it's still a great option. The ONLY real down side to this calculator is the painfully large pixels on the woefully small screen. Every time I look at it, I think of how much better it could be. It's like looking at a TI-60X vs a TI-68. BUT if you can deal with that, and you really should be able to, this little gem is worth having around as a small grapher. You don't find a grapher smaller except for the HP 9g, which is not HP's best effort by far.Verified purchase: YesCondition: Pre-owned
- 21 Nov, 2019
Amazing deal
The description of the item was misleading. It said it was "for parts". I read the description, and is says the screen is acting weird depending on what angle you look at it. This is what the screen is supposed to look like. This is why this calculator did so poorly on the markets of '95 and '96. The screen was out of date, compared to that day's technology. The Ti-82 was already out by then, of which was what is was based off of. This calculator was a letdown to calculator connoisseurs on the market. I think this is why the price was so low, the owner thought it was broken. I don't know how many times i bought an old graphing calc, and got a steal simply because it was "Broken". Buyers, next time you need to find a graphing calculator lookout for a product like this. Amazing deal. Does the job in my collection.Verified purchase: YesCondition: Pre-owned
- 24 Oct, 2018
A good graphing calculator for the budget conscious or a collector
Even though it looked a little rough in the pictures, the calculator arrived in excellent condition and functions as good as new. I have used it a few times and like it very much. It arrived earlier than expected and came packaged very well. The Ti-80 is a good calculator for anyone doing math on their own time, such as independent study or homeschooling. It is also a good choice for anyone on a budget that needs a good functioning basic graphing calculator.Verified purchase: Yes
- 26 Oct, 2015
Great, except the screen sometimes doesn't work
TI didn't a good job at TI-80 screen's fpcVerified purchase: YesCondition: Pre-owned
- 29 Mar, 2016
ti 60
great calculator, I had used this kind before. wrVerified purchase: Yes
- 30 May, 2017
Good cheap alternative
This graphing calculator is probably one of the cheapest graphing calculators you can get and it works greatVerified purchase: Yes
- 14 Aug, 2018
Great deal. Happy with the purchase.
Verified purchase: YesCondition: Pre-owned
- 02 Jun, 2024
Good
GoodVerified purchase: YesCondition: Pre-owned
