Adam Sampson's calculator bookmarkshttps://bookmarks.offog.org/ats/calculatorAdam Sampson2017-12-10T15:14:10Zspigot: a command-line exact real calculatorhttps://bookmarks.offog.org/edit?url=https%3A%2F%2Fwww.chiark.greenend.org.uk%2F%7Esgtatham%2Fspigot%2F2017-12-10T15:14:10ZA calculator which "does not output any digit of the answer until it's sure that the digit is right, and it will keep generating digits until you tell it to stop." Which means it's great if you're after pi, but struggles with numbers like 0.SOVIET DIGITAL ELECTRONICS MUSEUM. By Sergei Frolovhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.leningrad.su%2Fmuseum%2F2014-04-28T13:51:34ZAn impressive collection of Eastern Bloc hardware -- including lots of Spectrum clones.Reversing Sinclair's amazing 1974 calculator hack - half the ROM of the HP-35https://bookmarks.offog.org/edit?url=http%3A%2F%2Frighto.com%2Fsinclair2013-09-03T09:37:59ZMost impressive. I don't have one of these...34s:start [HP Calculator Wiki]https://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.wiki4hp.com%2Fdoku.php%3Fid%3D34s%3Astart2013-01-03T00:30:56ZAlternative firmware for current(-ish) HP calculators to reproduce the RPN experience.The ternary calculating machine of Thomas Fowlerhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.mortati.com%2Fglusker%2Ffowler%2Ffowlerbio.htm2012-05-27T11:00:48Z18th-century British computing.technikum29 - Starthttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.technikum29.de%2Fen%2F2012-03-30T11:38:36ZMuseum in Frankfurt with some very impressive early computers and calculators -- lots of neat pictures!Bill Kotaska's Busicom 141-PF Replicahttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.4004.com%2Fbusicom-replica.html2008-11-17T23:55:33ZBuild your own 4004-based calculator (the original microprocessor application).The Old Calculators Web Museumhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.oldcalculatormuseum.com%2F2008-06-07T15:32:15ZAs it says on the tin. Includes a slightly different version of my Singer.Computermuseum der Fakultaet Informatikhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fcomputermuseum.informatik.uni-stuttgart.de%2F2008-01-24T09:14:46ZA decent German computer museum. Now I know lots of completely useless German for things like "high-speed paper tape reader"... This is the museum that has the heavily-modified PDP-11/20 with semiconductor RAM, etc. They also have a very pretty LAB-8...Voidware Calculatorshttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.voidware.com%2Fcalcs%2F2008-01-19T16:34:00ZSome decent HP/TI/... models pages.Soviet Calculators Collection. By Sergei Frolovhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Frk86.com%2Ffrolov%2Fcalcolle.htm2007-10-07T16:03:46Z(No notes.)