#Tag · bonfire.cafe

A dive down the history of programmer's calculators of the 1970s and 1980s. These devices are calculators for programmers distinct from programmable calculators.

https://innovintageblog.wordpress.com/2026/01/05/programmers-calculators

#calculator #retrocomputing

ajuvo ✔ boosted

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@peterrenshaw@ioc.exchange · last month

When you positively want get home, you check, then double check your maths with a #HP41C or two.

#NASA / #Shuttle #STS7 / #Astronaut #SallyRide / #HewlettPackard #HP #HP41 #calculator

“This is an HP-41C pocket calculator, manufactured by Hewlett-Packard, that has flown on nine Space Shuttle missions in the 1980s. NASA purchased it from a local store in Houston, and installed special software on it for each mission. Mission critical computing was still done by the Shuttle on-board computers, but pocket” calculators found many other uses in space. This calculator could have performed critical re-entry calculations if the main computers failed.

This HP-41C was used by Astronaut Sally Ride and several other astronauts on a total of nine Shuttle missions.”

source https://airandspace.si.edu/collection-objects/calculator-hand-held-hp-41/nasm_A19890003000 — “This is an HP-41C pocket calculator, manufactured by Hewlett-Packard, that has flown on nine Space Shuttle missions in the 1980s. NASA purchased it from a local store in Houston, and installed special software on it for each mission. Mission critical computing was still done by the Shuttle on-board computers, but pocket” calculators found many other uses in space. This calculator could have performed critical re-entry calculations if the main computers failed. This HP-41C was used by Astronaut Sally Ride and several other astronauts on a total of nine Shuttle missions.” source https://airandspace.si.edu/collection-objects/calculator-hand-held-hp-41/nasm_A19890003000

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@peterrenshaw@ioc.exchange · last month

When you positively want get home, you check, then double check your maths with a #HP41C or two.

#NASA / #Shuttle #STS7 / #Astronaut #SallyRide / #HewlettPackard #HP #HP41 #calculator

Ika Makimaki boosted

Nick Young :tinoflag:

@nickofnz@mastodon.nz · 3 months ago

Greenpeace calls for Billionaire Tax to fund climate action ahead of vote on a U$1 trillion pay plan for Elon Musk...

...And launches The Billionaire Taxometer so you can see how much tax YOU pay compared to what the richest man on Earth pays: https://maps.greenpeace.org/gpafrica/billionaire-taxometer/?utm_source=nickofnz&utm_medium=nickofnz

(Taxes are good, they just need to be fair) #TaxTheRich

#taxtherich #wealthtax #capitalgainstax #ElonMusk #greenpeace #tax #game #calculator

The Billionaire Taxometer

Can you beat Musk at his own game?

Nick Young :tinoflag:

@nickofnz@mastodon.nz · 3 months ago

Greenpeace calls for Billionaire Tax to fund climate action ahead of vote on a U$1 trillion pay plan for Elon Musk...

(Taxes are good, they just need to be fair) #TaxTheRich

#taxtherich #wealthtax #capitalgainstax #ElonMusk #greenpeace #tax #game #calculator

The Billionaire Taxometer

Can you beat Musk at his own game?

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱

@SmartmanApps@dotnet.social · 4 months ago

@ricmac
I'm pro-facts, and anti-AI because I'm also a #Mathematics #teacher and #AI is horribly bad at doing Maths (can't reason). Students (or anyone at all) should NOT be using AI to learn Maths (or do their homework)! I just posted today about how AI is bad at tutoring. I run 2 (intermittent) series here, #MathsMonday and #FactFriday

Related: Programmers are also horribly bad at Maths, as evident by almost every e #calculator in existence gives wrong answers. See https://dotnet.social/@SmartmanApps/111164851485070719