Skip to main content

Some calculators I would like to add to my collection

These are all models that have some sentimental value for me either because I used to have one or because I wanted one.

Rockwell 44RD: This was my first scientific calculator. I think the colour scheme and VFD display still look great. https://www.calculator.org/calculators/Rockwell_44RD.html

HP 15C: This was the calculator that every student engineer in the 1980's wanted but I couldn't afford one so I used a succession of cheaper calculators instead. I have no interest in one of the remakes. I would like to own a 1980s original. https://www.calculator.org/calculators/Hewlett-Packard_HP_15C.html

Casio FX-7000G: When I finally started earning my head was turned by the latest graphical calculator from Casio. It was big and awkward and had poor battery life. I probably should have gotten a HP15c instead. I would still like a 7000G for nostalgia's sake. https://www.calculator.org/calculators/Casio_fx-7000G.html

Casio FX115D Super FX. My FX 7000G was stolen and I replaced it with this non programmable model. It turned out to be more practical and had useful complex number arithmetic. It also had engineering notation (micro milli Mega etc ) which I loved. It had odd rubbery keys. https://www.reddit.com/r/calculators/comments/m0w0rv/casio_fx115d_upgrade_suggestions/

Sharp EL 506p: I think this often overlooked model is one of the most important scientific calculators ever made because it spawned a thousand clones. The fact that these clones are still useful today is a testament to how powerful the low cost 1984 device was with complex arithmetic, statistics and binary/hex arithmetic. I know I had at least one of them but I cannot remember the exact dates. http://www.arithmomuseum.com/album.php?cat=c&id=361&lang=en

Casio FX82MS: This is another model which inspired a thousand clones. Even though this was released in 2000 it is actually less powerful than the earlier EL 506p. My kids used these in school but I never thought to keep one sadly. https://www.calculator.org/calculators/Casio_fx-82MS.html

Labels:

Comments

Post a Comment

Popular posts from this blog

Android Tip 3: Sharing a Folder between multiple users of an Android device

Android has allowed multiple user logins for quite a while now. This is can be very useful for tablets which are shared by family members. Normally Android erects strict Chinese walls between users preventing them from using each others apps and viewing each others files. This is a useful security feature and ensures your kids don't mess up your work spreadsheets when screwing around on the tablet and should also prevent them from buying €1,000 worth of Clash of Candy coins on your account. Sometimes however you really do want to share stuff with other users and this can prove surprisingly difficult. For example on a recent holiday I realised that I wanted to share a folder full of travel documents with my wife. Here are some ways to achieve this. 1. If you have guaranteed internet access  then you can create a shared folder on either Dropbox or Google drive. Either of these has the great advantage of being able to access the files on any device and the great disadvantage of bein...
51 comments
Read more

Portal 2 two screen coop on one PC.

I mentioned before that I intended to try Portal 2 in "unofficial split screen co-op mode. Well split screen on a small computer monitor is a recipe for a headache especially when the game defies gravity as much as portal. However a minor bit of extra fiddling allowed us to drive two seperate screens from one PC. The Steam forums describes a complicated method of doing this that I couldn't get working so this simpler method which worked for me might be of use to someone. 1. First I followed the instructions in this post to get split screen multi-player working: http://forums.steampowered.com/forums/showthread.php?t=1847904 A minor issue not mentioned is that you need to enable the console from the keyboard/mouse options menu I am using keyboard and one wired Xbox360 controller as suggested. Getting the controller to switch to channel 2 was tricky at first but as Chameleon8 mentions plugging it out and in again during loading works. The trick for me was to do the plug / p...
2 comments
Read more

Exploiting Checkpoints in Deadspace 3

Dead Space 3 has a rather strange save system where inventory is saved when you quit the game even though progress through the story is lost. The game has both "hard" and "soft" checkpoints. The soft checkpoints are far more frequent but are not permanently saved. If you die while playing you respawn at the last soft checkpoint but if you quit the game  you will return to the previous hard checkpoint. Since hard checkpoints are relatively infrequent you can lose quite a bit of progress unless you are disciplined enough to always wait till the next hard checkpoint (indicated by a symbol in the corner of the screen) before quitting. This sucks of course and is the type of thing which convinces me that save anywhere is much better than rigid checkpoints. The developers of Dead Space 3 decided to soften the blow of losing progress by allowing you to keep your entire inventory and health when you quit even though you lose your progress in the story. Collecting loot ...
2 comments
Read more