What's Inside 3 Generations of Graphing Calculators
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- Опубліковано 25 лип 2020
- I've been on a graphing calculator collecting kick lately. In this video I do a teardown on 3 different models spanning 20 years - a Casio from the 1980's, a TI from the 90's and a fairly modern cheap Casio from recent years. Let's see what changes inside as the decades pass!
- Наука та технологія
Many many years ago in a high school far far away... TI-89s were expressly forbidden during testing because, frankly, they can just do every last bit of high school math for you. TI-83 Plus' were blessed. I happened to own both. Their cases were identical, aside from the labeling for the keyboard. Somehow, my TI-83 Plus ended up with TI-89 internals in it. Damndest thing. Can't explain it.
Same Thing i did just with casio schientific calculators
The real life hack is always barely mentioned, now i know what 2032 means!
Me 2!
Ben and Clint look eerily alike in that picture. Are we sure Ben isn't Clint's dad or is either just a time travelled version of the other?
I wasn't even in puberty when Clint was born!
@@BenHeckHacks Perhaps he's a long lost brother.
I headed straight down here to add a 'seperated at birth' type comment but it seems I'm not the only one to think this lol
Actually my little brother from a second marriage is younger than Clint so that is technically possible! It's bizarre thinking back that my mom who was 35 at the time was considered a "high risk pregnancy"
I had this exact calculator and so many memories came flooding back!
This has to be my favorite You Tube channel besides the This Old House channel.
Also I'd like to take a moment to talk about shop safety. Be sure to read, understand and follow all the safety rules that come with your tools. Knowing how to use your tools PROPERLY will greatly reduce the risk of personal injury.
I've got a casio fx-7000g as well! It's a thing of beauty. They really don't make calculators as lovely as they used to. Great video, Ben!
I lost track of mine after college... :(
Yeah its funny how even with those ancient components and folded ribbon cables it's still thinner than the others! Granted the TI is like half empty
I had one too. Loved it. Trip down memory lane.
In the early 90s a friend of mine had I think an HP 28S, which he used for every sort of calculation, making simple games and animations with the graph function.
It was like the smartphone of its time.
Glad to see all is well Ben. Watched you quite often when you had the show going for years
- Alex
Congratulations on 1ook! Been here from the beginning-Literally!
The "hyp" button is the modifier for the hyperbolic versions of the trig functions, not for hypotenuse.
16:50 Wow man, I can't believe you don't know. They still make TI-8X calculators the same way they did in 1995 because they *_can_* . They can use what amounts to 60¢ worth of hardware and still slap a $85 price tag on the thing, because they're still guaranteed sales, because entire textbooks and high school math course curricula are written around it.
As well as being limiting on cheating. The whole industry is basically slave to testing organizations. They fairly recently removed the ability to run assembler code on TI-84s since it was the easiest way to stop people from escaping from exam mode rather than fixing the actual problems.
Hey Ben, Congrats on 100K Subs!
Dan Bell, Waterworld, does it get any better? I freaking LOVE Ben Heck. So much nerdy goodness.
I had the first one. A program was limited to 422 characters (?). I made a bike computer from it. Also replaced CR baterries with 9V one to make crunch prime numbers for several days. So much fun
I think Ben has been watching do many Eevblog videos doing lockdown.
There is never too many EEVBlog videos to watch!
That picture of Ben with Clint (LGR) gave me so much joy. 😆
I have basically every TI graphing calculator from the 8x series. I approve of this video.
But Ben, the battery i need to measure and replace is on my digital caliper. What do I do now? I will be waiting for your reply right here, since I can't do any work now.
I always thought it was 2032, for 20 mm, and 3.2V...
Glad to learn something. thks.
I was today years old when I learned what the 2032 meant lol
Same here
Now to find out what the CR stands for
adventureoflinkmk2 C stands for common name for the battery type, in this case C= Lithium and R stands for Round (cylindrical) form. L = alkaline S= silver M= mercury P= zinc-air Z=Nickel...
Yeah, you learn something new everyday
@@TheWhizKid007 thank you very much
Can relate !
This video resulted in roughly 4 hours of fiddling with an HP 35s I had laying around. God knows what would’ve happened if it was a graphing calculator. Thanks Ben!
Ahhhhh the fx-7000G my first and only graphical calculator I had for university in 93! Superb calculator, I wrote a horse racing prediction program on it which worked quite well. Then a friend trumped my by writing a little program to display a rotating wireframe cube!
i actually used the new model casio calculator for all of my math in high school, it was actually easier to use and faster than the TI 86 that was recommended to all the students, even though i had to learn how to use the calculator myself because the teachers only ever used and the curriculum was based around the TIs.
I would love to watch you do some calculator mods in the future.
I got a TI 83 (original) for Pre-Calc and Calculus and Stastics AP in Highschool. When I went to CSUN for Mechanical Engineering, they gave me a TI 86 that I still have to this day.
Great. Now I have the"Juicy Fruit' jingle stuck in my head. Thank you very much. 😁
Ah! Dan Bell and LGR! UA-camrs really are one big community!
Glad to see you got yours in good condition.
I was horrified to see you take it apart (Dave Jones style) but it was really informative to learn what they were up to back then.
I had to delete my Twitter account because it was starting to take over my life and I wasn't getting much work done. lol
It does take 3 CR2032 but should last a year with normal use.
CAUTION! Anyone going up the stairs at the Detroit airport needs to watch out for swinging paint cans!!
13:30 What movie reference is this? [edit] Waterworld? That was my first impression, but have no idea.
So glad I'm not the only one to reach for calipers to check battery size.
My two school calculators (never entered a field that required either of them) are still in my desk drawer- HP48G (wanted GX but couldn't afford) and TI-83+ Silver Edition. Batteries removed of course.
Pretty cool, I have a casio fx 7800G that eats 4 of those CR2032 in about a month, it always has since new when i was in college in 1992/3. Also I have a TI-92 that still works and I use on my desk, screen is a little faded but still going strong since 1996 that I got from my old job when I use to program VB 3/4.
Always wanted to see the internals of these explained!
23:37 that's actually a pretty great calculator! I got 2 because why not and it can be upgraded to have the same firmware as the Casio graph 75 (don't know the fx number) and it can even run Wolfenstein 3d! Plenty of software and great games can be installed on it. Saves from boring classes !
Edit : Oh and it does get dirty, absolutely
The fx number of Graph 75 is fx-9860gii.
My TI-86 probably saved my sanity through school. I had a surprising amount of software on it, including a nice shell for launching programs.
11:00 I service the parking gates at my city's airport, and it really is insane how quiet it is these days. I've been taking photos to document the pandemic and I have a whole gallery just like yours. I have a photo of the display showing incoming flights. What would normally be three full screens of flights was, at worst, just 5 flights. We'd normally have thousands of passengers going through the airport every day, and for a while, we were averaging less than three hundred. The economy and valet parking lots have been closed since April. There's one lone car sitting in Valet Park with a flat tire. I'm told the guy has been stuck in lockdown in Peru since March. There would ordinarily be about a hundred taxi cabs sitting waiting in the taxi pool... now there are typically like 10-12. The employee parking lots would normally be packed to capacity with thousands of cars... now, with covid-19, the airport doesn't don't want to operate the employee shuttlebus, so the employees' parking access has been transferred to a parking lot much closer to the terminal... but with the air travel industry in such a slump, so many employees have been laid off, that even so, the parking lot they've been transferred to is less than half full. The airport was right in the middle of building a luxurious new parking garage, and that construction project has been mothballed indefinitely since they have neither the funds nor the need for it anymore. I was Lead Technician with two junior techs under me... now it's just me. The company truck is in rough shape and HQ is having a tough time sourcing me a replacement... I get the impression that they're hurting a bit financially, since most of their clients are entertainment venues and other airports which are just about shut down like this one....
Edit: I speak pretty regularly with the boss of my airport's Parking And Ground Transport office, and your guesstimate of 10% capacity is spot-on.
Edit 2: Eating around the airport kinda sucks right now. The Burger King, sushi shop and smoothie stand are closed, and the Tim Hortons was operating with a drastically reduced menu for a while. I've been brown-bagging it more often, or driving 15 minutes out of the airport for lunch.
I had a TI-85, TI-86, and now use a 89. Good ol' days. Hahaha
What are you printing Ben?
What a backwards step that Casio FX-9750GII is :P
For a 2005ish Calculator, it's a major step back from what I had back in 1998. I had the FX-9750GII's older brother (if you will), the Casio CFX-9850G+ (That's Colour, COLOUR).
Granted mine only had 32KB of memory instead of 64, it at least had colour :P
And was more than capable of 200+ hours of battery life on its 4 AAA batteries + backup battery.
I managed to do an entire school year (That's an aussie school year) , using it for 8hrs a day, 5 days a week, only having to replace the batteries once during the school year if I was lucky.
Had some cool games I programmed on it too back in the day.
I really like your alcohol dispenser thing, I could definitely use one of those! Where did you get it?
Edit: 2 seconds worth of Amazon searching and I found one similar. :)
My first scientific calculator was my father's which he used in college (he graduated in 1973). The screen was 8 digit red LCD. I think a TI-30.
I still have a TI-86 back in the states.
That alcohol dispenser at 13:33 is awesome. I need to buy one. What are they called?
It looks like this one www.ebay.com/c/1255262231
I loved my 7000G even wrote mandlebrot for it, took sometime to complete the output but was worth it lol
I still use my TI-86, sortof. Did a ROM dump of it quite a while ago (Before I lost the link cable) and it gets emulated on my phone via AlmostTI
Had no idea that the kid from Terminator was also the kid from Detroit rock city and American History X. Thank your sister for me Ben, even she teaches me things.
What about the fx-6300g?
How did you overclock your eyes above 30fps? I would like to do that myself.
Human eyes run about 100 FPS (or the wet brain equivalent) Also the edges of your vision run even faster to help avoid predators. Try it sometime, if you come across a PWM light source (like new Cadillac taillights) look at them out the corner of your eye and the flickering becomes more noticible.
ahh I remember my old fx9750g plus from school i loved that thing
For TI the nspire line is arm chips. The TI 8x line up to 86 are z80. The TI 89-92 are 68k based.
That TI calculator was from when the Z180 was starting to be produced. Basically a Z80180 that had 1meg of address space with the upper 4 address bits effectively being bank switching via a DMA controller. Digikey still sell them.
Some of the 'newer' TI calculators that have a computer algebra system like the TI-89 and -92 use the Motorola 68k. I think they might have one or two extremely high end ones by now that have an ARM processor.
my ti-85 saved my ass in algebra 2, in high school (1996-97). Back in my high school days, we had to do all of our maths work on paper and write out all the steps. I made a couple programs in the basic programming language that was on the ti-85, that would solve quadratic equations, linear equations, matrices, polynomials and radical expressions. I passed in a piece of homework with just the answers. Teacher kept me after class, and asked me who I copied, because the answers were correct, but I didn't write out the work. I told my teacher that I used the programs that I wrote myself. He asked to see them, pulled out his ti-85 and link cable, and copied all my math progs. to his calc. The next time I had his class, he complimented me on my skillz and handed my homework back with an A+ 100%. Never got in trouble for not writing the work out ever again.
I still use my high school TI-86 at work.
I miss my fx-7000G! I loved that thing. :)
FWIW, the TI-Nspire series is ARM-based, and the 89 and 92 series were Motorola 68k-based. They still make the Z80-based ones to this very day though, and they still charge way too much.
I was always a bigger fan of the Casio devices than the TI ones (even the scientific calculators). They were always so much easier to work with. On that note, I have a TI-83 somewhere (we just moved, so I believe it's still packed). If you want it, it's yours. I'll keep an eye out for it.
I use that modern Casio: they still sell it and I bought it last year. It looks slightly different, though: they’ve removed the foil sticker and replaced it with the info being molded into the plastic.
Hey, the madison airport is quite nice, although I was there during a ton of construction a few years back!
I have the fx-7000G and the original owners manual (200 pages!). Casio also printed "Computing with the scientific calculator", a book that must have come with it. I forget how much it cost - maybe $80???
I have an N-Spire I got for like 25 bucks on clearance. It worked when I first got it, but I barely used it. Now it won't even power on. :( I tried to take it apart in case corroding batteries caused it maybe I could clean some corrosion but I couldn't fix it.
I think that's the hyperbolic key, not hypotenuse. Or did I miss a joke.
the HP Prime calculator has an ARM CPU and it's freaking FAST
Is it freaky fast just like my dad's dodge journey and a Toyota Avalon and Jimmy John's #WheatYeahFreakYeah
@@Freedom4Ever420 If a gameboy advance can run doom on a 20 mhz ARM CPU, I'm fairly sure a modernish graphing calculator can... XD
@Lassi Kinnunen awful ui? Lack of tactile keys? Plus the phone is much smaller. Hp does have an official phone app for the Prime...
@Lassi Kinnunen also, phones are forbidden on some exams, while calculators are not
my TI-Nspire CX has one too (133MHz I think?) and it's fast enough to play GBA games at full speed lol
I still have my Casio 7000g and it still works great (I'm the original owner). Love that thing. I wrote a ton of custom programs for it.
You should check out the numworks graphing calculator. Only $99, ARM based, color screen, and fully open source. Would make for a good video.
I have the TI-85 from my engineering degree in the early 90s. Still works, had a tetris program on it during that time.
You can find a lot more software, both 'serious' and games on www.ticalc.org
Hey Ben, You should try to get full motion video going on one of the LCD screens of one of these. I had a broken graphing calc and I was hoping for a device or way to run composite video into the screen. Might be a good video idea.
BTW, there is a full motion video addin for Casio fx-9860gii.
@@haonghephu4895 I've seen that video where someone played a scene from the matrix on a graphing calculator. I think it's on my channel.
@Ben - I know this is insane - but do you think that you could hook one of these graphing calculators up to a new display of some type? would love to see you reverse engineer the display - the TI-86 with its Z80 - outputting to a monitor? isn't that a thing that should exist in this world?
I believe that's exactly what the newish TI Plus CE calcs do. Those LCD's usually have Motorola bus mode so no reason the Z80 can't talk to it.
@@BenHeckHacks - a world of micro-computers that I never knew :)
I used to have a Tandy PC-2 and it's display ultimately faded away to be unreadable.
I'm surprised you haven't gotten a copyright strike for your spot-on vocal renditions yet.
21:40 chuck or chunk?
I got a modem Casio from goodwill for about 15 USD, but I returned it because the software to connect it to my PC was about 100 USD. I almost got a 84 Silver Plus CE for 25 USD, but it was gone when I went to pick it up and I got a working PS3 Slime for 20 USD.
TI-86 is my favorite calculator of all time!
I have the same
The Casio fx-7000G was my first calculator, a hand me down from my brother who had a fancy TI calculator. My maths teacher didn’t know how it worked and taught everyone with TI so I had to figure out the equivalent TI functions myself. I eventually figured out you could code on it and made a ‘game’, a fruit machine simulator. This is how I learnt never to gamble!
Z80 is a damn good processor. I still use it. Been writing Z80 code since 1984. Love it.
I also use Atmel 328P microcontrollers. Oh well. Love those too.
I guess I’m ambidextrous. Whatever.
Great video!! Thanks!!
Mac My Life Up I use an old 486 running CP/M to write code for my Z80 projects, program my EPROMS and my Atmel GALs (for I/O and address decoding). Everything else is running on an AMD box running Win10 Home with 32 Gig of ram and several terabytes of storage. It has a AMD 3rd gen processor with 16 cores and 32 threads and I use it with DipTrace to create schematics and do auto-routing of my PC boards which are made in China by a great PC board house.
The AMD machine has several cross-compilers and another neat stuff on it like Atmel Studio for the Atmel microcontroller programming, etc.
I have a Master’a degree in Electrical Engineering and I mess around with electronics as a hobby. Thanks for asking.
You should see the TI92 Plus. That thing has five display driver chips. Five.
What is that thing that you have your alcohol in that works like that? That's pretty cool.
www.ebay.com/c/1255262231
Nice details
I was *"today"* many years old when I found out what 2032 meant!
And C stands for the battery type. _C= Lithium and R= Round L = alkaline S= silver M= mercury P= zinc-air Z=Nickel_
#MindBlown
I got those some push foil 2032's. For me it was, well, if I need more then five I might as well buy 30.
Love my Ti Voyage 200 when solving polynomials.
UA-cam! Why can I only like this once?! I ❤️ calcs.
Cool.. I still have the fx-7000G in my drawer here :)
You had me at the Mamas & The Pappas
Damn... This makes me wish I didn't throw out my HP graphing calculator. It'd probably be living on a shelf, but it was kool having a pocket z80 in high school.
That was my calculator in high school, the TI-86.
Fun fact, those 9750GII calculators have nearly the same internal specs as the slightly more expensive 9860GII, to the point where you can actually flash the 9860's firmware to the 9750 and gain access to the ability to install C add-ins compiled with the official casio SDK!
So actually yes, that board is pretty much a base model, while the more expensive versions really just add stuff like SD card input, a backlit screen, and IIRC an RTC
(and yes, the FA-124 software is provided by casio to gain access to the data transfer features)
I have some Sony Mavica camera's, some floppy disk and 1 used cd rw's
Edward Furlong was sweet in American History X. I loved how he talked all slow haha.
Ben, i hate to break it to you but the HYP key is for hyperbolic functions not hypotenuse. examples instead of sine using the HYP key first makes it sinh or hyperbolic sine.
Bro, I can't believe you busted out the juicy fruit song.
Interesting video I would still never buy a TI graphing Calc due to the extortionate pricing they demand.
Still using my TI-86
16:44 Actually the newer TI 84+ CE ones use the eZ80 (wow impressive). My first introduction to ASM was entering the hex opcodes from Zilog’s manual. I had a friend this past year in school who has one of the newer Nspire calculators, and they actually do use some ARM processor.
From what I can tell, the eZ80 is a faster Z80 with a 24 bit address space, but can switched between 24 bit and 16 bit addressing. I’m not an expert in Zilog stuff, but it’s what I’ve learned on my own...
I think the newest ones have arm 9 cpus
what ? no HP48 ?
IIRC, (I haven't checked in to things since college), TI went in with ARM with their n-spire series, which sold for shit because curriculums used the TI-84 as the standard. Sooo they have come out with a series of new TI-84s, first using color with no CPU upgrade, THEN a new version with a much faster CPU. Still has a Z80, because it's still a TI-84, but it's a whole SoC, not just a uC. And then why bother trying after the n-spire failed? Any "real work" is done in MATLAB or R.
The reason TI calcs use ancient hardware is because they're allowed on some standardized tests. More advanced hardware like the 68000 in the TI-89 is not allowed.
9:33 eevblog reference?
Say it again Ben, Texas is the greatest state within the greatest country on earth.
They have no desire nor incentive to modernize graphing calculators. Math curriculum, being fairly static, means that textbooks written with the calculators in mind doesn't change very often.