A significant part of my collection is made up of calculators of more recent vintage--it's hard to say for sure which ones just yet, but some of these will be among the collectible calculators of the next century.
3 recent models from Texas Instruments, all basically variations on the "four-function solar-powered calculator with memory, square root key, and arithmetic logic":1. TI ClearCalc
4 more in the same vein:
3. TI-1768 II: This one has a tilting screen.
1. TI-1795: A small desktop variation on this continuing theme.
3. TI-1006: Almost identical to the TI-1706.
1. TI-307+: Shown actual size.
TI-701 LOOK (Graffiti): The LOOK series of three calculators used an innovative light pipe to funnel light to the solar cells and run the calculator.
TI Number Beat: This simple calculator was sold in the late 01980's together with the Personal Advisor, a date book with words of advice from "52 famous achievers".
And now the TI-30 series continues, with a few other scientific calculators thrown in:
1. TI-30 STAT.
3. TI-30: This alternate LCD version was made in Italy and appears to have been sold in Europe only.
1. TI-30 SLR.
2. TI-30 Challenger.
1. TI-30 II.
1. TI-25 STAT: Still available in some locations.
2. TI-30 SLR+.
3. TI-25: An earlier use of the TI-25 number.
TI-30 Galaxy: The Galaxy series of calculators was marketed by TI in Europe and uses an unusual horizontal format.
The slightly later TI-35 line:
2. TI-35 II.
1. TI-45 Micro Scientific Printer: Another semi-hybrid of desktop
calculators and handhelds, this one provides hard copy output in a compact
2. TI-34 II Explorer Plus: The result of a merger of the TI-34 scientific calculator and the Explorer series of teaching calculators, this one can handle fractions and most scientific calculations. The European version of the TI-34 II is the TI-40 Collège II below.
TI-5038 Paper-Free Printer: This desktop calculator's right-hand screen mimics a paper tape with a complete record of calculations, input, and results.
European Calculator Section: These three calculators are recent TI products marketed only in Europe.
1. TI-36X II: A new scientific calculator released only in Europe, in
02000. The instruction manual for this one is written in Dutch. Has
a two-line display and a menu-driven system for things like trig functions and
2. TI-40 Collège II: Instruction manual in French; this is very similar to the TI-34 II (above) marketed in America.
3. TI-36 eco RS: A "politically correct" calculator, this one uses 100% recycled plastic (hence the "R" in the name) and solar power, and was certified as environmentally friendly in Germany.
Zelco 10732RH: This is an ergonomic calculator designed for
right-handers. The switch at the top right of the keyboard is an
additional + key and can be used, for example, to count.
Zelco 10732LH: Same calculator for left-handers. Fits nicely into the right hand while the left is used to press keys.