{"id":408,"date":"2006-12-06T06:54:35","date_gmt":"2006-12-06T13:54:35","guid":{"rendered":"http:\/\/www.gubatron.com\/blog\/2006\/12\/06\/my-old-school-hp-48g\/"},"modified":"2006-12-06T06:54:35","modified_gmt":"2006-12-06T13:54:35","slug":"my-old-school-hp-48g","status":"publish","type":"post","link":"https:\/\/www.gubatron.com\/blog\/my-old-school-hp-48g\/","title":{"rendered":"My old school HP 48G"},"content":{"rendered":"

<\/p>\n

This is the calculator that went to almost every exam I took starting from Calculus II.<\/p>\n

I gave the money to my friend Rosa who came that year to New York with her parents and bought it here, so the calculator is back home now.<\/p>\n

Without this equipment I wouldn’t be here, its an old calculator but very powerful, and like the ipods nowadays, it was the calculator to have on my engineering school.<\/p>\n

There were some who used Casio’s, or Texas Instruments, but they sucked balls cause they didn’t get to beam each other programs, or “exam references” \ud83d\ude42<\/p>\n

Go HP48G<\/p>\n

<\/p>\n

Here’s an article on wikipedia about the HP-48 series
\nen.wikipedia.org\/wiki\/HP-48<\/a><\/p>\n

From 3.7Mhz to 4Mhz CPU frequency depending on temperature.
\n32K RAM (Not expandable, since that was the 48GX which had 128K RAM)
\n512K ROM<\/p>\n

Supported a programming language called RPL (Reverse Polish Lisp)<\/p>\n

All the programming I ever did was more of functional composition than anything else.<\/p>\n

This thing rocked to solve equation systems of many variables, plotting, and even accounting. If you know how to use one, you know you can be pretty fast, you just have to know reverse polish notation.<\/p>\n


\nEverybody had one of these in my school so you had to tag it somehow, it came with a blank metal plate.<\/p>\n

My full name was engraved in the city of Guacara (Estado Carabobo, Venezuela), I have a cousin who used to own a sports shop, he had an engraving machine for trophies and the such.<\/p>\n","protected":false},"excerpt":{"rendered":"

This is the calculator that went to almost every exam I took starting from Calculus II. I gave the money to my friend Rosa who came that year to New York with her parents and bought it here, so the calculator is back home now. Without this equipment I wouldn’t be here, its an old […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[19,30],"tags":[],"class_list":["post-408","post","type-post","status-publish","format-standard","hentry","category-diary","category-geeklife"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5Unzf-6A","jetpack-related-posts":[{"id":850,"url":"https:\/\/www.gubatron.com\/blog\/my-calculus-ii-cheat-sheet-1997\/","url_meta":{"origin":408,"position":0},"title":"My Calculus II Cheat Sheet (1997)","author":"gubatron","date":"September 7, 2008","format":false,"excerpt":"This piece of paper is about 11 years old, I created it as (non-permitted during exam) reference to all those formulas I couldn't remember a 100% or to which I could doubt in a moment of stress so I could double check. It's been kept on the pouch of my\u2026","rel":"","context":"In "Diary"","block_context":{"text":"Diary","link":"https:\/\/www.gubatron.com\/blog\/category\/diary\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3041,"url":"https:\/\/www.gubatron.com\/blog\/how-to-use-googles-calculator-to-convert-amps-and-volts-to-kwh\/","url_meta":{"origin":408,"position":1},"title":"How to use Google’s calculator to convert Amps and Volts, to kWh","author":"gubatron","date":"May 26, 2013","format":false,"excerpt":"Say you have an electric engine that consumes 8 amps at 12 V, and you would like to know how much this would translate in kilowatt hours? Go to Google's search box and type 8 amps * 12 v * 1 hour And you will get the total output in\u2026","rel":"","context":"In "Geeklife"","block_context":{"text":"Geeklife","link":"https:\/\/www.gubatron.com\/blog\/category\/geeklife\/"},"img":{"alt_text":"Screen Shot 2013-05-26 at 8.27.15 AM","src":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-26-at-8.27.15-AM.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-26-at-8.27.15-AM.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-26-at-8.27.15-AM.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2013\/05\/Screen-Shot-2013-05-26-at-8.27.15-AM.png?resize=700%2C400 2x"},"classes":[]},{"id":407,"url":"https:\/\/www.gubatron.com\/blog\/papiros-de-calculo-ii-old-school-ucab\/","url_meta":{"origin":408,"position":2},"title":"Papiros de Calculo II – Old School UCAB","author":"gubatron","date":"December 5, 2006","format":false,"excerpt":"Cuando estaba en la escuela de Ingeniera, viendo Calculo II con el Prof. Luis Crespo, la cantidad de transformaciones trigonometricas, integrales inmediatas, y otros artifices matematicos que tenia que tener en mi cabeza fueron plasmados en esta hoja de papel, la encontre hoy en un bolsillo del estuche de mi\u2026","rel":"","context":"In "Diary"","block_context":{"text":"Diary","link":"https:\/\/www.gubatron.com\/blog\/category\/diary\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1750,"url":"https:\/\/www.gubatron.com\/blog\/hp-slate-sup-biatch-whos-your-flash-daddy\/","url_meta":{"origin":408,"position":3},"title":"HP Slate: “Sup Biatch, Who’s your Flash Daddy?” ADAM: “Me”","author":"gubatron","date":"March 9, 2010","format":false,"excerpt":"No wonder Adobe wasn't sweating it much when Steve Jobs was bad mouthing them... Check the HP Slate demo video by Adobe after the break, gotta love it when he rubs it in by saying that 85% of the Top Websites run flash. Sorry Steve, I'm not with you on\u2026","rel":"","context":"In "Geeklife"","block_context":{"text":"Geeklife","link":"https:\/\/www.gubatron.com\/blog\/category\/geeklife\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":811,"url":"https:\/\/www.gubatron.com\/blog\/how-much-ram-can-your-64-bit-cpu-address\/","url_meta":{"origin":408,"position":4},"title":"How much RAM can your 64-bit CPU address?","author":"gubatron","date":"May 11, 2008","format":false,"excerpt":"Your old 32-bit CPU, could address up to 2^32 memory addresses, that's 4294967296 different memory addresses, better said, \"only\" 4GB, something that 15 to 20 years ago was 1000 larger than any memory created at the time. Now we have 64-bit CPUs, that means they can address up to 2^64,\u2026","rel":"","context":"In "Geeklife"","block_context":{"text":"Geeklife","link":"https:\/\/www.gubatron.com\/blog\/category\/geeklife\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3291,"url":"https:\/\/www.gubatron.com\/blog\/the-real-price-of-bitcoin-in-bolivares-fuertes-bitven-com\/","url_meta":{"origin":408,"position":5},"title":"The real price of Bitcoin in Bolivares Fuertes: BitVen.com","author":"gubatron","date":"May 23, 2014","format":false,"excerpt":"I've just released a tool for Venezuelans looking to know what the ACTUAL price of Bitcoin is in Bolivares Fuertes, it's called BitVen.com Most price tickers out there don't know about Venezuela's currency control reality and they post the Bitcoin price using the Government's official dollar exchange rate, the problem\u2026","rel":"","context":"In "BitCoin"","block_context":{"text":"BitCoin","link":"https:\/\/www.gubatron.com\/blog\/category\/bitcoin-2\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-22-at-9.39.28-PM.png?fit=547%2C482&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-22-at-9.39.28-PM.png?fit=547%2C482&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.gubatron.com\/blog\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-22-at-9.39.28-PM.png?fit=547%2C482&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/posts\/408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/comments?post=408"}],"version-history":[{"count":0,"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/posts\/408\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/media?parent=408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/categories?post=408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gubatron.com\/blog\/wp-json\/wp\/v2\/tags?post=408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}