The 1980's Maths Teachers' Enemy - CASIO NUMBER INVADERS are back

This was how we snuck/sneaked an electronic game into class in 1982 - and now you can bring one into your business meetings because Casio has reissued their Number Invaders game calculator.
UPDATE - In the game if you shoot two numbers in succession that add up to 10 then the invader appears - the invader is worth more points.
The last two minutes are my usual outro. If the proportion of new content to existing outro is unacceptable to you - here is an alternative version with a quicker outro. ;-) • The 1980's Maths Teach...
- or you could always just stop playback of this video when you want to stop watching. When the fun stops, stop.
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Jerobeam Fenderson for the intro animation: oscilloscopemus...
---------Outro Music----------
Over Time - Vibe Tracks • Over Time - Vibe Track...
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ThatSFXGuy - • Six Million Dollar man...

[@scottmccluremcclure3916]

My math teacher in 1980 told me you won't be carrying around a calculator in your pocket every day all the time. Hahaha

[@CommodoreFan64]

Be funny if you could find that teacher today if they are still alive, and pull out your smartphone with a graphing calculator app on the screen, say I was one of the kids in 1980 you said would not be carrying around a calculator in their pocket all day every day. lol!

[@jcobnl]

And i laughed at the people who once told me you can record a cd with any music i want. oh, the foolish 90's...

[@NKingTotoro]

I'm still bitter that my middle school insisted that we learn how card catalogs worked because we "couldn't expect computers to do everything," and yet I have never even used such a system in my adult life, as they were already dead by the time I was learning about them.

[@phils4634]

In the 1980's the pinnacle of computational power was the (by then) 5 year old CRAY-1 Supercomputer. 80 MFLOPS raw computational speed. Today's Galaxy S5 has a comparable raw computational "power" of 364 GFLOPS (the Tekra ARM-1 196 core K1 chip). By comparison today's Smartphones can comfortably out-compute the IBM Deep Blue that beat Garry Kasparov in the late 1990's. - www.phonearena.com/news/A-modern-smartphone-or-a-vintage-supercomputer-which-is-more-powerful_id57149

[@HerecomestheCalavera]

My math teacher in the early 00s said the same thing

[@davidf2281]

I had literally forgotten about Number Invaders for 35-odd years. As soon as this video started, *POW* there I was in the playground with my friend Leon showing it on his watch. Thanks for the rekindled memory!

[@dimensiongamer534]

aw thats awesome.

[@mspenrice]

I bet it being on their watches is one of the reasons for the simplistic control scheme - you could play it then with a finger and thumb gripping each side of the screen and pushing a button each. A bit like the ever-so-fancy Tetris watch my brother had in the 90s (and the only computer game my mother has ever played at length - she got a bit addicted to it) which pared both the display and the controls down to the bare minimums... two buttons on each side of the actual watch body - left, right, rotate (clockwise only) and drop...

[@davidf2281]

mspenrice: Yes, simplicity is the key, as so often in life. I wonder if anyone actually knows who came up with Number Invaders. With hindsight they deserve some recognition; I certainly couldn't think up another game you could cram onto a calculator watch in the 80s that was actually fun and addictive to play.

[@ShellstaTube]

Ditto. My mate across the street had this and the watch. I had a VIC20 then a C64. Where did we get the time? I also had a full physical/active life and yet spent hours on things like this, typing in games code from magazines and trying to set speed records on the Rubik's Cube (and mini).

[@mspenrice]

+davidf2281 Casio Engineer #372

[@MichaelBerthelsen]

Love how they made a 'game over' tag in the crystal display rather than just have it written in the number display...😅😂

[@MichaelBerthelsen]

No One In Particular 'GAME' and 'OVER' on two screens 2 seconds each. ;-)

[@rich1051414]

You need at least a 12 segment display for a truely readable alphabet. Honestly I wonder if that would have been cheaper than a custom 7 segment. Edit: If you are curious: www.ohijamn.com/covers/12-Segment%20Display.png 12 segment displays are a thing of beauty :)

[@MichaelBerthelsen]

No One In Particular Not if you use the diagonals.

[@wolfgangmcq]

Richard Smith Custom LCDs are super cheap when you're buying thousands of them, I wouldn't be surprised if the cost of a microcontroller that had enough outputs to drive a 12 segment display was more than a custom layout.

[@SnownelVEVO]

But it didn't have diagonals... it's just a 7 segment display.

[@BigCar2]

Is 3 years long enough to wait for prices to settle down? Yes! Just ordered one.

[@thearousedeunuch]

It's interesting to see you here. You make great content. :)

[@BigCar2]

@@thearousedeunuch Thx!

[@thearousedeunuch]

@@BigCar2 You're welcome. :)

[@bc65925]

When I was in the service stationed in Saudi Arabia if you gave blood it paid 50 Riyal. At the motel where we stayed the gift store had one of those Casio watches for 50 Riyal. So almost everybody in the unit ended up with a "Blood Watch".

[@lockbreaker7961]

bc65925 and a lot of saudis had american blood.

[@NickMurray]

The N comes up when you shoot down two numbers that add up to 10, the N gives much higher score particularly if you can get more than one on the screen at a time.

[@christophermiel]

I played Space Invaders on my TI83 Plus. Was the only thing we used it for in math class.

[@peterlewis4199]

I remember getting quite skilled at getting the 10's. If I remember rightly you also got a N if got to 20 or 30 etc. So you could do 8 +2 =N or 8+8+4=N etc. Does anyone know if I am right?

[@peterw1213]

@@peterlewis4199 yup, you're right. As long the numbers tally up as multiple of 10, n comes out as next number.

[@ForumCat]

The ultimate skill was to have a full row of Ns I managed it several times. lol

[@trascyjaac534]

OMG! When I was in 'Intermediate School' (years 7 & 8, or in my case 1980 & 81) in New Zealand, this was the biggest thing going. I never had one but a kid used to rent his out for $2 for a weekend. We used to call the 'n' thing the 'Mothership'. Each time you erased 2 numbers that equalled 10, you would get one. So that added a other level of skill, requiring you to erase numbers quickly while also making sure they added up to 10. Kids that were really good at it would have a whole bunch of 'motherships' on the screen at once. On top of that, they were worth more points than the ordinary numbers. As the game when on, and you reached higher levels, the numbers that you had to delete moved faster and faster, making it quite hard. Thanks for posting this.

[@trascyjaac534]

Yes, that's right. Any order you want, hopefully zapping 2 numbers that add up to 10. As above, this will produce the 'n' symbol or 'mothership'.

[@trascyjaac534]

It was great for it's time, I have fond memories. I remember the big achievement was to 'clock it.' In other words to score more points than the game could display. This usually meant several hours of full on, dedicated play - something I never achieved. It's my one big regrets in life (not really!). Levels 8 and 9 were the worst, the numbers came at you so fast! Lots of fun though.

[@ShellstaTube]

My mate 'clocked' it. I seem to recall it was at 1 million. My high score was in the late 800 thousands. Took 4-5 hours. My memory is sketchy ... But recall it got faster, in cycles, but slowed down at certain milestones.

[@ShellstaTube]

Oh yes, I reread your comment ... the larger numbers were faster.

[@trascyjaac534]

Yeah, fast and slower in different parts. Looking back, clocking it in 4 to 5 hours sounds about right.

[@624radicalham]

Leave it to Techmoan to find a hidden gem in the most boring of products and make a calculator interesting.

[@tonycrazy88]

It was reported that Gunpei Yokoi got the idea of the Game and Watch when he saw a businessman played with his calculator on the train to pass the time. I wonder if it was that kind of calculator now that I am aware of those Casio ones...

[@Mireaze]

In college we're required to have graphical calculators. You can program a basic version of Smash Bros, and even doom onto them. Fun times.

[@BertGrink]

www.ticalc.org has dozens, if not hundreds of games and other programs for the whole range of TI graphing calculators.

[@c00kiegaming51]

You've also got mario for it with 12 levels from mario 3

[@jort93z]

My school has the casio FX-CP400 lol, their touchscreen is bigger than that of my phone. Doesn't have that much software, though i did make some text based adventures for it, lol.

[@himbeerme]

There are even GBC and GBA emulators for the TI Nspire. The GBC emu runs as good as on a real GameBoy, the GBA one is more of a slideshow.

[@johnbeauvais3159]

Why_are_there _no_names Funny, in my college you're not allowed to have graphical calculators, only one line scientific calculators

[@GasparLewis]

The calculators required in American math classes now have had the capacity for custom programs, including games, for at least a decade plus. I'm sure I'm not the only one with fond memories of finishing classwork early with a TI-83 and kicking back with some BLOCK DUDE.

[@solidamber]

GasparLewis maths

[@2small4theMall]

ian gee regional differences

[@SoundFantasy]

GasparLewis I had block dude and some game where you push stuff into holes

[@urbanarmory]

Drug War 4 Lyfe

[@trevorbrown6654]

I remember having a number invaders game on my calculator circa 1983. It was a Casio but came in a white plastic case unlike the one you show from the Argos catalogue. As I recall my dad quite enjoyed playing it too.

[@metamorphicorder]

Ive always loved casio brand electronics. I had a casio color graph calculator and a databank calculator watch. If i remeber correctly they had a databank watch that had an eye on it that you used with software on your pc and programmed the information into the computer then it comnunicated by flashing a special series of barcodes on the screen that the watch could read and translate into information you could then view on the watch. Hmmm smart watch? Different protocol but that is wireless infomation transmission there. Casio is one of the most underappreciated tech companies out there. There stuff works and is durable. Im sure if i still had the color graph, it would work just fine. And it was half the price that a competetive ti product was going for. Slightly smaller screen, but easier programming and it had three colors on the lcd display. Loved it.

[@phils4634]

Still have my working FX-120 with vac. fluoro display. Mine had an external port for a mains adapter, since the batteries didn't last too long. Bought it in 1978, from Argos, Plymouth UK.

[@thinkbolt]

I saved my money and bought one of those Casio watches in high school. Spent many boring hours playing that game. And yes, I vividly remember getting into that rhythm.

[@Bigos4]

Woah, what an amazing outro! I just realized how amazing the old tech was with all those moving things and flashing bits.

[@aussie8114]

There's always something nice about opening a brand new calculator 😌

[@NitroMaxOriginal]

I had two of these, they were great and still could be. Back then they were metal/alloy and a real leather case.

[@phils4634]

The UK models (1978 certainly) had a stitched PVC case, which was pretty durable. Boots the Chemists did their own range of Casio machines, and all of theirs came with a plastic shell case.

[@U014B]

This episode sponsored by SHELL OIL.

[@ReshiLuna]

Bytesback I don't get it. What does that mean? Is it a calculator code?

[@NOWThatsRichy]

kaity kline BOOBLESS 😁😁

[@st3vieuk]

Oh the memories - I think I had one that also had a melody piano type thing in a fold up wallet

[@roypennock8046]

I still have the GCE Space-N-Counter that I got for my 8th birthday in 1982. It has a simple 4 function calculator on one side and a windowed sliding cover on the other. Sliding the cover over the calculator keys would reveal a tiny LCD screen, miniature 4 way joystick and a fire button. It was a simple fixed display that used different combinations of dots, diamonds and chevron "spaceship" shapes to play three different games. Sliding the cover back would return it to a completely innocent looking calculator. I don't know how common they were as I've never seen another one like it.

[@Stefan-]

This brings me back... I have never seen this calculator myself, but i vividly remember the digital watches with the built in melodies that everyone seemed to have somewhere around 1980 when i went to school, they were very popular for a while and then suddenly was gone. There seems to be at least one in that catalogue, number 17.

[@mbcommandnerd]

My dad is a HAM radio operator, so we went to the Rochester HAM fest this weekend. But I never knew that I would come back with a Unisonic 21 Blackjack calculator! Go and look it up, you can actually play a full-blown version of blackjack on it, and it still works as a calculator when you need it for that, too.

[@davidbenson5794]

That is a really cool example of minimalist game design. Making something fun with so little.

[@MrTridac]

Every time I watch your outro I wish you would do an exhibition of your collection one day.

[@greenaum]

I wish he'd BRING BACK THE MUPPETS!

[@Techmoan]

If you live a hectic life and need to shave one minute and twenty seconds off the end of this video - then watch this version instead kzbin.info/www/bejne/fIDVeWmIo7WkmpI *ALSO - There’s a bit more info in the video description text box regarding the strategy behind making the higher scoring invader ‘n’ appear*

[@LycanWitch]

lol that's epic xD

[@rich1051414]

Halfway through this comment, I thought this was going to be a dollar shave club ad. What has youtube done to me...

[@CK-ceekay]

Why not make the patreon credits three columns across instead of two? It'd shorten them down while still giving them good recognition

[@FranklyPeetoons]

A 5:45 video with two full minutes of closing credits is quite an accomplishment. It's almost like watching one of those student CG videos that's eight minutes long, five of which is closing credits.

[@panthermodern64]

Still saw my name, I'm okay with it

[@nubilan]

Thank you so much for this video! I remember as a small kid having the opportunity to play this game on my uncles' Casio watch couple of times and I remember being completely mesmerized by it, so much so that later, when I had a chance to have my own electronic devices, I hoped I would come across this game once again on one of them. But I didn't, and I didn't know the name of this game, and I didn't even completely remember what was the actual gameplay. Now you helped me to remember it! And that causes me to try to find a version of that game on the computer or smartphone!

[@nubilan]

I found it at Goggle Play, and it's called Number Crash! It has only 100 downloads! Preposterously small number! ;)

[@sandorrabe5745]

I got this calculator as a gift in 82... Sweet memories. Had it for a long time and got quite an impressive highscore then, but I lost it and thought i'd never see something like it again. Thanks for bringing back these fond memories!

[@KurtWoloch]

I had the Casio MG-880 which I think was the original version of the calculator that had this game on it (without solar). Actually it had three modes - Calc, Melody and Game. In Melody, it played a different tone for each number key (including the comma) you pressed, and a short "Chip" for other keys. Back then Casio had a line of calculators with special functions... for instance, one with an alarm clock. The most extreme one was actually the VL-1 keyboard which then evolved into a full line of musical keyboards (without built-in calculators). That was in the heyday of LCD games and VFD handhelds with Casio also having a few of those out, just before home computers and video game consoles became affordable.

[@Eman2000]

I have a ti 84+ CE I put a couple of games on it. My favorite being Tetris. Not that I would play them in class or anything...

[@L0rd_0f_War]

Wow... This brings back some memories... My dad brought one home from USA and I got to play with this calculator in the 80s as my one and only hand held gaming device.

[@depechem0demusic]

I had the Casio mg 880 back in the 80s and really enjoyed playing the game

[@androo4519]

Exactly my experience of this calculator in the early 1980s. I too was a bit disappointed (though not surprised) there no graphics for the game, but I still loved playing it, especially once I discovered you could make it produce the 'n' symbol by zapping two consecutive numbers that added up to 10. You got a fun melodic trill as a reward and a bigger score. I still have mine, which I bought from W H Smith in 1981 for £10.95, pristine, working, and in its box. The MG-880 started me off collecting the things as a teenager, and I have about 120 now, mostly from that period. I also got the calculator-watch with the same game, which I used to play during hymn singing in assembly...

[@merrytrek]

I remember playing that game on the calculator back in the 80s, it got frantic as it speeded up. It also had a music mode where you could play tunes on it.

[@robertgaines-tulsa]

I think I was too young for that game. My older siblings were in school still during the early '80s, and in our schools even a basic calculator was cheating. We were not allowed to use calculators until 7th grade. My teacher in 6th grade did teach us how to use basic calculators though. In 8th grade, you really needed a scientific calculator. They still were pricey at that time. I mostly use a basic calculator now for finances, but I still keep a scientific calculator around for certain other tasks. Yeah, I do have a smart phone with basic and scientific calculator apps on it, but I just prefer the simple experience of picking up a calculator for getting my numbers crunched.

[@darrenerickson1288]

My best friend had the calculator watch with the game included. It was so awesome.

[@retroretiree2086]

This game was also included in one of the credit card sized Casio calculators of the early 80s, We got to scores of over 60,000 - it took quite a while & concentraction on such a tiny machine!

[@TheStwat]

i always have to watch the ending credits all the way till the end

[@Moonstalker]

There was so much special calculators at the time, you got pocket calculators with FM radios, clocks, games, music, and even a multimeter. Though there was also a madison watch with bilt in radio and calculator that seems to just not even exist anymore ...

[@jameswilliams8934]

I still have my MG-880 and last time I tried it, it was still going on the original button batteries, despite both me and my mum playing the invaders game to death just after I bought it on holiday in Wales!

[@springerkeith]

When the sum of the numbers is 10, the highest score "n" UFO will appear!!

[@MrDuncl]

In the early 1980s I bought my 50 year old father the Sharp equivalent WN102 (which does actually feature the Space Invader gunships). He seemed to like it so much that the next year I bought him a Grandatand Poc Pacman game, which if you remember came in a bright yellow case. After playing it over the weekend he commented "There is only one problem with this game - I can't play it at work"!

[@TBustah]

That's cool. This thing is from way before my time, so I'd never even heard of it. Gunpei Yokoi was on a train one day in 1979 when he saw a bored businessman fiddling with a calculator to pass the time, which inspired him to create Nintendo's Game and Watch, which later led to the Game Boy. Of course, the day that he was on that train was the year before this calculator first came out (so it couldn't have been one of these that the businessman was playing with), but it's funny to think that two different people in the same small country had the same basic idea around the same time, but they had nothing to do with each other.

[@Lazy_eye_blobFish]

Your videos are awesome sir, I am 25 years old and I do enjoy watching your stuff. My mom said that when we move she's going to get me a record player so I'm really excited about that, you've sparked my interest in record players and I appreciate that.

[@Kenny_P_abz]

Wow - that’s a blast from the past I totally forgot about. Has reminded me that my Casio I played this on also had a music mode of some sort that gave each key a note you could play. Edit: After a bit of googling looks like your calculator is a recreation of the one I remember (MG880) and yours plays music too. How about a tune?

[@ALWTunes]

I had the watch version of this game in 6th grade. Oh man. I wasted way too many hours on it. Thanks for the nostalgia.

[@dorbellbuster2011]

Yep. People have already mentioned it. Not sure if that was an Easter Egg. However "71077345" Does in fact spell out "SHELLOIL" On a calculator what turned upside down. Did you know you can also Do "Esso oil" too?

[@peterw1213]

After this, Casio also came out with a boxing game calculator. It was passed around the classroom during my high school days.

[@brooksrownd2275]

In the watch catalog page near the beginning the watch I had as a 1980s kid is #17, the Casio "LCD Musical Watch" with the musical notation along the top. It played several songs, the exact sounds of which are burned into my brain for the rest of my life. ;) It also had Big Ben chimes, Jingle Bells for Christmas, and played Happy Birthday on your birthday. It was one of my most prized possessions in the early 1980s.

[@kurtownsj00]

Us younger folk loaded games onto our TI-83+ graphing calculators, even including a First Person Shooter! I overclocked mine with a couple capacitor changes and it worked great, ran the game much smoother and did complex stuff noticeably faster, but would use up the batteries faster and after two years it died. :P

[@Zadster]

I had the calculator watch version of this. As you say, the game is surprisingly good when you get into it. I loved that watch, but the resin strap went the way of all of them and started cracking, eventually failing after about 3 years. I remember going into Dixons with my mum and asking to see the Casio calculator game watch. They insisted they didn't have one, so we had to buy a copy of ETI or whatever to show the sales droid that it really did do that. Such a shame that Casio didn't continue developing the calculator watches after the CFX400 and the databank / IR remote ones. Casio stuff always felt "right" to use.

[@grahamjohnpreston]

Brilliant. I was only thinking about this the other day!! I never owned one but a few mates at school did so got to use there's. It was actually great fun back then. Computing in it's infancy. 👍

[@BlackburnBigdragon]

This would have never gotten by in my math classes. Back in the 80's, in my school, our school system was VERY stick in the mud and obsessed with "show us your work on the page" as far as math was concerned. Calculators weren't allowed in our schools at all, even in our advanced math classes. We had to do all our damn calculations in our head and on paper, showing our work as we did it in these big, long, calculations. If a kid was caught with a calculator watch, the teacher would make him take it off for the class. Nowadays, though, calculators are allowed in ALL math classes and even REQUIRED in some. They don't care about the "show us your work" principle, so much as long as the kid knows how to get the right answer (this is according to my step mom, who's a teacher). And they teach math so differently (IE, the new method is to teach kids to do many of the simple calculations in their head instead of on paper now, where we would have to write out everything.) So, things have changed a LOT since I took math in the 80's.

[@kikispantig]

I remember a friend who got that nifty Casio calc-watch with its microbuttons that are really painful to press. It had calendar, appointment, alarm, phone contacts storage, calculator (ofc), and that strange game mode that we didn't know (she didn't own the manual so all we did was staring at the tiny screen waiting for gameover). Finally I know what that was!

[@stargasior]

Hmm, Living in Japan + game calculator = New career scalping calculators! I’ll keep an eye out for them next time I go to an electronics store here.

[@hyvahyva]

A similar game is built into the Kenwood TH-77A ham radio. It's activated by holding a button on power up, but I can't recall which one! I'll have to dig it out and find it again... The TH-D7A has a hidden game too.

[@dominicfong6341]

Extra points are scored the closer it is to your "base" when it is shot down; so not only you need to add numbers so it ends with multiples of 10 in order to get you a "n" monster. You can easily earn a lot of points by shooting the number at the last possible moment during the slower levels

[@radry100]

It's only so expensive on Amazon because some sellers offer international shipping. In domecstic stores in Japan it still costs 2127 yen, although currently sold out.

[@LeShark75]

Casio & the 1980s go hand in hand for me. My first Digital watch around 35+ years ago was a Casio, I've now got a nice collection of Casio Digital watches and I just love the brand.

[@corncobjohnsonreal]

They better fucking bring back those musical calculators, they're lit fam

[@herminatorschlachter]

Everytime I see you using old catalog entries, I know why I endure every argument with my girlfriend because of my habit going to the store occasionally and picking all the catalogs for future reference.

[@YanaTV730]

日本人なので、日本語でコメントを書きますが、オリジナルは1980年に発売されたカシオゲーム電卓・MG-880もしくはMG-770という機種なのですが、30年前の機種と比較すると… 1.消費税絡みの機能が追加された(日本で消費税が実施されるようになったのは1989年4月からであり、オリジナルの最初の機種は「税抜」、「税込」、「税率設定」のキーがない) 2.太陽電池内蔵になった。 3.電卓として使うのであれば10桁まで計算できるようになった(オリジナルは8桁)。 参考「電卓博物館・ゲーム電卓」 www.dentaku-museum.com/calc/calc/91-bunrui1/81-game/game.html オリジナルが発売された30年以上前と比較すると価格がおよそ半額になったことと、実際に購入を検討していたので参考になりましたが、動画を伺う限り、オリジナルと比較してキーサイズが大きくなったために操作しやすくなったような印象を感じました。

[@ZMARKLINZ]

Thanks for the information!

[@buddyclem7328]

@@ZMARKLINZ _What_ information? "Forbidden You don't have permission to access /calc/calc/91-bunrui1/81-game/game.html on this server. Server unable to read htaccess file, denying access to be safe" On top of that, the OP's comment is entirely in Japanese. There is no way to translate it in the mobile app.

[@theorgandude]

you got a ufo to appear by hitting two numbers in sequence that add up to 10. good strategy tip there.

[@LightTheUnicorn]

They really did make the best with what they had there, really intriguing little game!

[@MathWebs]

Its nice, and for computers, its nice to know how to program all those math functions, and that is what my math ebook is about.

[@mikeching6374]

This seems a lot like a game on a Snoopy Calculator I had as a child, there it was called "Tens Stadium", but instead of aiming and firing, the numbers came from the right and you had to type in the correct number that (Added to it) would result in 10...

[@ClaudiupromotionSRL]

That intro needs a music😂

[@mikeangelo6667]

The game I enjoyed was called Brain Drain, sold by Radio Shack circa 1975.

[@chrisbloom382]

I'm sure I had this game on my Casio calculator watch. The smart watch of 1982.

[@dieterjohnson3018]

This was precisely when I was in high school. How is it that I, nor any of my classmates, ever had one of these calculators, or had even heard of them, for that matter??!?

[@Honeybearsphone]

Andi certainly abold enough to remember it and still remember how much I wanted one

[@jefrey5578]

I had that casio calculator game wgen I was a kid on mu calculator. I snuck that past my mom, she didnt see the part about a game being on there lol. I rather enjoyed that game when I was a kid but there were not really any other calculator games out there in 92-82. God, I am old!! So many things I had when I was a kid that I wished I saved cause of their value now. Its good to see this oddity being sold again, though I suspect it will stay high priced since the demand for it will be rather low. Kids new calculators are wifi and all that jazz most likely and are in 1080p for all I know, lol! Anyway, good show chap!

[@buckclydesdale]

+1 for typing "SHELLOIL" on the calculator after you unboxed it.

[@gunfighterzero]

there was a watch with a space invaders knock off game on it.. i use to have one i nearly wore the buttons out

[@buddyclem7328]

I had a Pac-Man watch. I always had to get gimmicky watches. Calculators, a Transformer, a talking watch, and in high school, a Casio Databank that I tragically killed in a swimming pool.

[@KarlAdamsAudio]

I had almost entirely forgotten about these - thanks for the nostalgia hit.

[@jazzriwiri895]

I remember you could play tunes on the original one. And it could play "oh when the saints come marching in" In New Zealand the game was called speed shots. And there was another calculator on the market that had a boxing game on it.

[@starkmms1]

That brings some memories flooding back. Great nostalgia.

[@robsawalker]

I had one of these! Fantastic, thought it was the future!

[@alstech]

The oscilloscope intro is great!

[@mr.berlingo8211]

The games we played were writing upside-down words (or words using hex mode), or finding out whose calculator was fastest at calculating 69! (which can take several seconds on some models).

[@autisticlife]

This takes me back.

[@mrhomevideo314]

When I was in junior high in the late '70s we had programmable calculators called, if I remember correctly, the 025E. They actually used punch cards! (Mat, btw, thanks for getting back to me regarding the Telefunken 707. Weird gadget.)

[@JrGoonior]

I remember this, my dad had that game in his watch version of this made from stainless steel. Thanks for making me feel old!!!! :)

[@EvenTheDogAgrees]

Two Techmoans in two consecutive days? You're spoiling us, Mr. Moan! :)

[@Fortuna1]

Remember too Digiris in two versions years ago: the calculator and the game version (white and green colors)

[@heathwellsNZ]

Oh wow... Many (many many many!) hours playing mine... Sadly I didn't have the sense back then to keep it in good condition and I have no idea what ever became of it. As I type this I am searching e-bay and other outlets and hope to purchase one and re-live those times!

[@snukie73]

Woo hooo , I still have the MG 880 in original working condition, maybe needs a replacement battery by now :-p I also had one where you had to ‘complete the 8’, where you had to aim high,mid,low to knock out attacking digits.

[@gregmccutchan9387]

WOW, I have a casio MG-885, not the same but a different game and a casio BG-15 from the 80's

[@lynnwillis441]

I had the watch! I wore the buttons out playing that silly game. Thanks!

[@ExpressoMechanicTV]

I had one of the originals! This really brings back a few memories.

[@TheRealBrook1968]

On a Scouting trip, a friend came with a pacman watch and we took turns paying him a dime each time to play in the van on the way to the camp. Almost as good as handheld dash football.

[@litigioussociety4249]

Not quite this old. I am old enough to remember having Texas Instruments calculators in the 90s, and programming games on them.

[@CAESARbonds]

I‘m the operator with my pocket calculator. When I press anspecial key is plays a little melody.

[@buddyclem7328]

Kraftwerk!

[@wesleyburkart2805]

I am adding

[@fartmerchant762]

Someone tell the patrons to request a video on a 1950s television set, the videos involving restoration are my favorite

[@LukasFink1]

Wow you had to live with these primitive devices in the 80s? I had a TI-83 Plus at school. Z80 cpu clocked at 6 MHz, 32 kB RAM, 512 kB Flash memory. That was a beast! Completely programmable in TI’s own language, C or assembler. Additionally there are already a huge amount of games on the internet for it. It even allowed a cable to be used for multiplayer gaming!

[@da5idnz]

Hehe, my brother had one of those calculators. I think it is lost to time now... They produced many other games after that, of course, such as _8 Attack_ , and then the boxing ones.

[@imajeenyus42]

You could do that with a Raspberry Pi. Sorry, I couldn't resist ;-) Seriously, that's a really neat little game, and I hope someone with an Arduino and a 7-segment display shield is busy writing a copy of it!

[@mspenrice]

Screw that, I want to see someone port it to the KIM-1...

[@bananya6020]

yeah i want to make a ti nspire on a pi zero underclocked to like 200mhz lol

[@brydon10]

You should do a video on mono audio and listen with one speaker. I hear it can actually be really good when setup properly. Thanks for the upload.

[@ZZ-xz6lc]

I love the new intro!

[@WerewolfLord]

Don't worry about being scalped on this, the maths teacher is trying to avoid being scalped too badly trying to get Hagoromo chalk!

[@Ruben-ht5op]

Love the intro