My dad, a high-school math teacher, loved
the Texas Instruments graphing calculators as an instructional tool. Nevermind the early IR hacks that let students beam test-answers back and forth during exams, the important thing was how much you could learn by having ready access to a graphing calculator while doing quadratics and the like.
Of course, those TI calculators were a little on the slow side. The intarweb comes to the rescue: with just a little overclocking know how, you can bring the older machines up to a blazing 12MHz and the top-line beasties all the way up to 20MHz!
Curently, the TI-81, TI-82, TI-83, TI-85, TI-86, TI-89, TI-92,a nd TI-92 Plus can be accelerated. The 81, 85 and 86 can be accelerated to approximately 2-3x their normal speed, about 18 MHz. The TI-82 and TI-83 can also be accelerated to about 1.5-2x normal speed. They only about double their speed to around 12 MHz. The TI-89 and 92 can be accelerated to around 20 MHz!
(via Make Blog
Update: Martin sez, "I believe you are confusing TI with the HP48 series of calculators by
Hewlett-Packard. I'm not aware of any TI with an infrared feature,
probably because of the trouble HP has had with theirs. Here's some
documentation on HP's IR port.
On the other hand, there is a hack to add an IR port to TI calculators
The office I work in is full of things old people buy to make themselves feel young again. I can honestly say that our awesome new toy, The Swagtron T3 Hoverboard, makes me feel very, very old. I’ll explain why later. Swagtron T3 Pros There’s no way to overcharge the battery and that means no […]
One thing that’s consistent among amateur pool players is that they unknowingly stand up during their shots. Just as in golf, pool players need to keep their heads down and stay still after they shoot in order to hit straight. The DIGICUE helps keep shots consistent by letting you know every time you’ve had extra […]
A leaked memo from Apple CEO Tim Cook to his staff explaining why he met with Donald Trump — a guy who called Apple traitors for refusing to defeat their own security — explains the rationale: “tax reform.”
With countless applications for modern life, artificial intelligence (AI) is one of the most in-demand fields of study in tech. Beyond modelling human decision making processes and learning abilities, AI can be used to analyze massive volumes of data and create complex interactive systems.This Machine Learning & AI for Business Bundle made mastering these concepts possible for […]
Computer hacking isn’t just something happening to the DNC. Major software companies need white-hat hackers to ensure the security of their products and users, and I came across a Computer Hacker Professional Certification Package that conveniently teaches those advanced IT techniques online.This course package will prepare you for various computer security certification exams with over 60 hours […]
One of the best ways to progress a career in project management is through earning recognized certifications. These certifications carry significant clout and don’t require expensive tuition or student loans. This Ultimate Project Management Certification Bundle is a great example of an affordable way to get ahead. It includes training for 9 certifications including PMP, […]