A dive down the history of programmer's calculators of the 1970s and 1980s.
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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
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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
@amoroso hmm, I remember in 1980 helping a friend who had a TI calculator that could be programmed, and could save its programs onto little thin cards.
We wrote a prime number seeker (prove N to be prime then try the next number ad infinitum) but that's all I can remember.
I had to switch my thinking a bit because I'd already been used to my brother's HP-45 - not a programmable but I'd set myself sequences of actions for it (i.e. I was the program).
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@amoroso hmm, I remember in 1980 helping a friend who had a TI calculator that could be programmed, and could save its programs onto little thin cards.
We wrote a prime number seeker (prove N to be prime then try the next number ad infinitum) but that's all I can remember.
I had to switch my thinking a bit because I'd already been used to my brother's HP-45 - not a programmable but I'd set myself sequences of actions for it (i.e. I was the program).
@geraldew Back in the day I never could afford a programmer's or programmable calculator.
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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
@amoroso When my HP 22S finally went to digital heaven a few weeks ago, there wasn't much thinking. I got myself a new HP 15C Collector's Edition.
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@amoroso When my HP 22S finally went to digital heaven a few weeks ago, there wasn't much thinking. I got myself a new HP 15C Collector's Edition.
@monospace Not bad.
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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
@amoroso The reproduction HP-16C from Swiss Micros is very nice if a little pricy. It has a very solid feel as you'd expect from an HP calculator.
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@amoroso The reproduction HP-16C from Swiss Micros is very nice if a little pricy. It has a very solid feel as you'd expect from an HP calculator.
@arclight It's to continue the tradition of pricy devices they had back in the day. 😀
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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
@amoroso
I have a 16c since new, and a used TI Programmer.The 16c is beyond good. It will do 2s complement, 1s complement (only one variety), unsigned math. Variable words size as mentioned.
But it has a full set of logical operators and shift and rotates. I had programs written that did disk table calcs, CPM disk skew calcs, etc.
One of those sweet spot in a lifetime devices.
The TI seemed a bit half done honestly.
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@amoroso
I have a 16c since new, and a used TI Programmer.The 16c is beyond good. It will do 2s complement, 1s complement (only one variety), unsigned math. Variable words size as mentioned.
But it has a full set of logical operators and shift and rotates. I had programs written that did disk table calcs, CPM disk skew calcs, etc.
One of those sweet spot in a lifetime devices.
The TI seemed a bit half done honestly.
@tomjennings Does the 16C still work?
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@tomjennings Does the 16C still work?
A bit beat up, but it was in constant use til 10 years ago. The 2 key misses occasionally; I need to look up disassembly and cleaning, or maybe pay someone to do it.
Back in 93 or 94 the guy I worked for, Neil Colvin, thought they were so neato he bought all three or so employees one.
I just put my last three fresh 357's in it.
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A bit beat up, but it was in constant use til 10 years ago. The 2 key misses occasionally; I need to look up disassembly and cleaning, or maybe pay someone to do it.
Back in 93 or 94 the guy I worked for, Neil Colvin, thought they were so neato he bought all three or so employees one.
I just put my last three fresh 357's in it.
@tomjennings All in all not too bad.
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@tomjennings All in all not too bad.
It's kind of a perfect Object. I don't own a lot of things like this. The spiral bound manual is lovely too.
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It's kind of a perfect Object. I don't own a lot of things like this. The spiral bound manual is lovely too.
@tomjennings And the design of HP alculator keys is unique.
Gli ultimi otto messaggi ricevuti dalla Federazione
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@catsalad more or less
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@catsalad It's a dolphin sandwich.
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@kenobit credo di esprimere il pensiero di tutti gli ascoltatori dicendo che c'è un incredibile calore nell'ascoltare questi temi con questa voce. Che è proprio il motivo per cui va letto questo libro, uscire dagli aridi numeri degli algoritmi proprietari e riprendeci cura della nostra identità digitale, per usare le tue parole. Molto belle anche le inflessioni della voce quando qualcosa ti fa ridere o ti fa riflettere. La voce dà tridimensionalità al contenuto. Grazie grazie grazie.
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All'interno dello strumento dell'ICE per monitorare i telefoni in interi quartieri
404 Media ha ottenuto materiale che spiega il funzionamento di Tangles e Webloc, due sistemi di sorveglianza recentemente acquistati dall'ICE. Webloc può tracciare i telefoni senza mandato e seguire i proprietari fino a casa o al loro datore di lavoro.
https://www.404media.co/inside-ices-tool-to-monitor-phones-in-entire-neighborhoods/
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@catsalad yeah. Although I don’t permanently hold a camera in front of my face.
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@sudo_EatPant@critter.cafe @catsalad@infosec.exchange Can confirm, they are chair
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@http_error_418 @catsalad Are you sure you are not a giant sentient rainbow heart?
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L'irragionevole efficacia della trasformata di Fourier
La tecnologia fondamentale alla base di quasi tutte le moderne telecomunicazioni radio: l'Orthogonal Frequency Division Multiplexing, o OFDM. Le interfacce radio modulate tradizionalmente soffrono di un'ampia varietà di problemi. Alcune interfacce radio diventano molto confuse se la portante non è centrata dove dovrebbe essere; alcune interfacce radio forniscono un elevato tasso di errore sui canali rumorosi; alcune interfacce radio soffrono del "digital cliff" nella ricevibilità; alcune interfacce radio utilizzano un'ampia larghezza di banda e sono molto sensibili al fading di canale non uniforme; alcune interfacce radio non tollerano il multipath (segnali che rimbalzano durante il percorso verso un ricevitore); alcune interfacce radio a banda larga vengono completamente silenziate anche da un singolo tono di interferenza; e l'elenco potrebbe continuare. Per ciascuno di questi problemi, è stata condotta un'enorme quantità di ricerca sulle mitigazioni per le modulazioni in stile AM e FM, e ciascuna di queste mitigazioni è diventata computazionalmente impegnativa e difficile da scalare a velocità di trasmissione dati più elevate. Con l'avvento delle modulazioni derivate da OFDM, tuttavia, quasi tutti questi problemi vengono risolti in modo molto efficiente in un colpo solo! Sembra magia, ma in realtà è molto comprensibile, almeno se non si cerca di leggerlo su un arido libro di testo.
