#HistoryofComputer

[adafruit]

🎄💾🗓️ Day 11: Retrocomputing Advent Calendar - The SEL 840A🎄💾🗓️

Systems Engineering Laboratories (SEL) introduced the SEL 840A in 1965. This is a deep cut folks, buckle in. It was designed as a high-performance, 24-bit general-purpose digital computer, particularly well-suited for scientific and industrial real-time applications.

Notable for using silicon monolithic integrated circuits and a modular architecture. Supported advanced computation with features like concurrent floating-point arithmetic via an optional Extended Arithmetic Unit (EAU), which allowed independent arithmetic processing in single or double precision. With a core memory cycle time of 1.75 microseconds and a capacity of up to 32,768 directly addressable words, the SEL 840A had impressive computational speed and versatility for its time.

Its instruction set covered arithmetic operations, branching, and program control. The computer had fairly robust I/O capabilities, supporting up to 128 input/output units and optional block transfer control for high-speed data movement. SEL 840A had real-time applications, such as data acquisition, industrial automation, and control systems, with features like multi-level priority interrupts and a real-time clock with millisecond resolution.

Software support included a FORTRAN IV compiler, mnemonic assembler, and a library of scientific subroutines, making it accessible for scientific and engineering use. The operator’s console provided immediate access to registers, control functions, and user interaction! Designed to be maintained, its modular design had serviceability you do often not see today, with swing-out circuit pages and accessible test points.

And here's a personal… personal computer history from Adafruit team member, Dan…

== The first computer I used was an SEL-840A, PDF:

I learned Fortran on it in eight grade, in 1970. It was at Oak Ridge National Laboratory, where my parents worked, and was used to take data from cyclotron experiments and perform calculations. I later patched the Fortran compiler on it to take single-quoted strings, like 'HELLO', in Fortran FORMAT statements, instead of having to use Hollerith counts, like 5HHELLO.

In 1971-1972, in high school, I used a PDP-10 (model KA10) timesharing system, run by BOCES LIRICS on Long Island, NY, while we were there for one year on an exchange.

This is the front panel of the actual computer I used. I worked at the computer center in the summer. I know the fellow in the picture: he was an older high school student at the time.

The first "personal" computers I used were Xerox Alto, Xerox Dorado, Xerox Dandelion (Xerox Star 8010), Apple Lisa, and Apple Mac, and an original IBM PC. Later I used DEC VAXstations.

Dan kinda wins the first computer contest if there was one… Have first computer memories? Post’em up in the comments, or post yours on socialz’ and tag them #firstcomputer #retrocomputing – See you back here tomorrow!

[ryandjaxon]

The Bombe Machine in #ImitationGame wasn't just code-breaking tech - it was a pioneering computer! Alan Turing's innovation helped win WWII & birthed modern computing. A testament to human ingenuity & the power of STEM #ComputerScience #AlanTuring #HistoryOfComputing

[lightbulb-production-studio]

If you’re new here, what’s up? I’m super excited to dive into a topic today that’s packed with inspiration, curiosity, and, honestly, a bit of shock! 🤯 You’re gonna love this. I mean, who doesn’t love a good story about powerful women? This video is all about the surprisingly fascinating lives of influential women who shaped our modern society. #AdaLovelace #WomenInTech #STEM #ComputerScience #TechPioneers #HistoryOfComputing #Innovators #Mathematics #Programming #DigitalRevolution #history

[nehaarticles]

[tsevis]

Computing Pioneers for Shashi Hotel

Honoring the Legacy of Computing Innovators

In this project, in collaboration with Local Language, the Oakland based creative studio, I was honored to create four mosaic portraits of renowned computer pioneers: Tommy Flowers, Graham Bell, Michael Faraday, and Charles Babbage. These artworks were commissioned to embellish the rooms of the prestigious Shashi Shoreline Hotel, located in the heart of Silicon Valley. As an artist with a deep fascination for the intersection of art and technology, I am humbled to have had the opportunity to create portraits that pay tribute to these distinguished individuals who have significantly contributed to the development of the computing industry. The Shashi Shoreline Hotel, located in one of the most technologically advanced regions globally, provided a perfect platform for exhibiting these artworks. As guests explored the hotel's rooms, they encountered pieces highlighting the legacy of these pioneers and their impact on computing technology More about the project: https://www.behance.net/gallery/169255039/Computing-Pioneers-for-Shashi-Hotel

[techbugs-digital-marketing]

History of Computers कंप्यूटर का इतिहास

History of Computers कंप्यूटर का इतिहास - कंप्यूटर का इतिहास एक लंबा और जटिल है जो 19वीं शताब्दी की शुरुआत में शुरू हुआ था। यहां कुछ प्रमुख विकास और ��ील के पत्थर का संक्षिप्त विवरण दिया गया है: History of Computers कंप्यूटर का इतिहास पहला कंप्यूटर प्रोग्राम: 1800 के दशक के मध्य में, गणितज्ञ ऐडा लवलेस ने लिखा जिसे पहला कंप्यूटर प्रोग्राम माना जाता है। उसने अपने "विश्लेषणात्मक इंजन" पर चार्ल्स बैबेज के साथ काम किया, एक सैद्धांतिक यांत्रिक कंप्यूटर जो कभी नहीं बनाया गया था। पहला मैकेनिकल कंप्यूटर: 1800 के दशक के अंत और 1900 की शुरुआत में, कई अन्वेषकों ने मैकेनिकल कंप्यूटर का निर्माण किया, जिसमें अमेरिकी जनगणना के लिए उपयोग की जाने वाली पंच कार्ड मशीनें भी शामिल थीं। पहला इलेक्ट्रॉनिक कंप्यूटर: 1930 और 1940 के दशक में, वैज्ञानिकों और इंजीनियरों ने इलेक्ट्रॉनिक कंप्यूटर विकसित करना शुरू किया। 1937 में बनाया गया अटानासॉफ़-बेरी कंप्यूटर पहला इलेक्ट्रॉनिक कंप्यूटर था, लेकिन यह प्रोग्राम करने योग्य नहीं था। ENIAC, 1945 में बनाया गया, पहला पूरी तरह से इलेक्ट्रॉनिक, प्रोग्राम करने योग्य कंप्यूटर था। ट्रांजिस्टर: 1947 में, ट्रांजिस्टर के आविष्कार ने इलेक्ट्रॉनिक्स उद्योग में क्रांति ला दी और छोटे, तेज़ और अधिक विश्वसनीय कंप्यूटरों का मार्ग प्रशस्त किया। पहला व्यावसायिक कंप्यूटर: 1950 और 1960 के दशक में, कई कंपनियों ने आईबीएम के मेनफ्रेम और डीईसी पीडीपी श्रृंखला के मिनीकंप्यूटरों सहित कंप्यूटर बेचना शुरू किया। पर्सनल कंप्यूटर: 1970 और 1980 के दशक में, कई कंपनियों ने पर्सनल कंप्यूटर बेचना शुरू किया, जिसमें Apple का Macintosh और IBM का PC शामिल था। इंटरनेट: 1990 के दशक में, इंटरनेट व्यापक रूप से उपलब्ध हो गया, जिससे कंप्यूटरों को वैश्विक स्तर पर सूचनाओं को जोड़ने और साझा करने की अनुमति मिली। मोबाइल डिवाइस: 2000 और 2010 के दशक में, स्मार्टफोन और टैबलेट जैसे मोबाइल डिवाइस तेजी से लोकप्रिय हुए, जिससे आईओएस और एंड्रॉइड जैसे मोबाइल ऑपरेटिंग सिस्टम का विकास हुआ। कंप्यूटर के पूरे इतिहास में अनगिनत प्रगति और नवाचार हुए हैं जिन्होंने हमारे जीने और काम करने के तरीके को बदल दिया है। आज, कंप्यूटर हमारे दैनिक जीवन का एक अनिवार्य हिस्सा है, हमारी जेब में फोन से लेकर इंटरनेट चलाने वाले सर्वर तक।   ब्रेकिंग न्यूज और लाइव न्यूज अपडेट के लिए हमें फेसबुक पर लाइक करें या Google news पर फॉ��ो करें. tejas24.Com पर विस्तार से पढ़ें व्यापार की और अन्य ताजा-तरीन खबरें Subscribe Our Channel Read the full article

[thepeoplescloud]

Memory Line (2022)

Dir. Matt Parker

DOP Bella Riza

Memory Line is a short documentary film that reflects on the early days of computing and listens to computing veterans who remember their experiences of the memory machine, EDSAC. The work comprises interviews with three women who are veterans of EDSAC as they remember their time working with the machine and also includes interviews with a group of volunteers who are currently building a replica of EDSAC at The National Museum of Computing in Bletchley Park. They discuss the important role of women in early computing, and what makes them tick as pioneering computer programmers.On 6 May 1949 a team of engineers led by Sir Maurice Wilkes in the University of Cambridge Mathematical Laboratory ran the first programme on a new digital computer called the Electronic delay storage automatic calculator (EDSAC).EDSAC is one of the first digital computers ever built with a programmable memory that allowed it to store data. Using tubes of mercury, the computer stored bits of data by sending ultrasonic pulses through the tubes and creating a memory feedback loop. The computer’s memories were literally soundwaves.A team of retired computer engineers are currently building a replica of EDSAC (which was decommissioned 60 years ago in 1958) at The National Museum of Computing in Bletchley Park. The project has seen spare rooms, garden sheds, attics and kitchen tables converted into project and prototype laboratories across the region as the team build a machine which is an entire room in size, in their homes.

[historyfoundhere]

In 1981 bracht Phillips de P2000t uit. Dit was een doorbraak in het thuisgebruik van computers. De P2000t was robuust en daarom koos ook het onderwijs massaal voor de P2000t als eerste computers die het klaslokaal inkwamen. Zo was deze computer voor veel kinderen in Nederland de eerste kennismaking met deze nieuwe wereld. In 1981 kostte een P2000 ongeveer 3000 gulden, in 1984 was dit nog maar 1200 gulden. De eerste uitvoeringen werden geleverd met een Z80 microprocessor die draaide op een kloksnelheid van 2,5 MHz. Er is 4 KiB ROM, 16 KiB RAM en 2 KiB videoRAM. ———— In 1981 Phillips released the P2000. It would become an icon, because many children in The Netherlands got to work with it, because schools chose this computer thanks to its robustness. The P2000 came with a een Z80 microprocessor with a speed of 2,5 MHz. It had 4 KiB ROM, 16 KiB RAMand 2 KiB videoRAM. #philips #philipscomputer #eindhoven #p2000 #p2000t #personalcomputer #historyofcomputers #pc #80s #1980s #homecomputer #cassetebandjes #cassetetape #525inchfloppy #floppy #2000t #computer #computers #computerhistory #historyfound https://www.instagram.com/p/CUxnwZIsozK/?utm_medium=tumblr

[ofgraveconcern]

26th December 1791, birth of English polymath, mathematician, philosopher, inventor and mechanical engineer Charles Babbage. Babbage originated the concept of a digital programmable computer, and is considered to be the "father of the computer. Babbage is credited with inventing the first mechanical general purpose computer called ‘The Analytical Engine’ in 1837. Although executing the ideas and plans for the analytical engine, and other pioneering computing machines; Babbage’s computers were never realized in his lifetime. It would not be until the late 1930’s and early 1940’s that his machine’s would become a reality. Leading to the modern computer today. Charles Babbage and his Analytical Engine appear in the historical Industrial sublime Tarot 1760 - 1848. A tarot deck inspired by the 18th and 19th century, with a healthy dose of steampunk added for flavour. Available in 5x7 prints in color or naked ink, with historical description. Now with free shipping. #charlesbabbage #analyticalengine #steampunkstyle #steampunkart #steampunktarot #steampunktarotcards #tarotart #steampunkillustration #illustration #illustrationartists #tarotdecks #historydaily #historyart #steampunkhistory #historicalillustration #historic #historyofcomputers #historyofcomputing #historyofscience #otd #onthisdayinhistory #tarotillustration #tarotart #tarotartist https://www.instagram.com/p/CJRD6QBHcYy/?igshid=ywdne3i627m4

[thetravelingtotoros]

Next! #computerapps #class2 #totoro #lectures #long #historyofcomputers https://www.instagram.com/p/B1jbPWmhYVv/?igshid=17owfww48j45r

[cselenyiflora]

Silicon Valley, avagy Google napok

Figyelem, a következő sorokat csak erős idegzetűeknek és Google fanoknak ajánlom.

Emlékeztetőül: annak az oka, hogy most itt vagyok, egy Google verseny, amelynek köszönhetően nyertünk egy utazást a csapatommal. A választási lehetőségek között szerepelt a Mountain View-i iroda, azaz a Google főhadiszállás meglatogatása is. Mit ad Isten, ezt választottam.

Nos, a fentiekből következően 2 napot innen kell dolgozni. Nem mondhatom, hogy nem örülök, és kedves menedzserem javaslatára félretéve a nem létfontosságú ügyeket, igyekeztem az időt a vállalaton belüli kapcsolataim építésére (IS) fordítani. (Értsd: találkozom és beszélgetek pár emberrel fél órákat, akik hasonló területen dolgoznak itt, mint én.)

Ezen kívül persze - szerintem és menedzserem szerint is - fontos a látóköröm szélesítése, lehetőségek feltérképezése is ittlétem alatt. Ezt a célt szem előtt tartva az első napomon rengeteg időt és energiát (sétálgatást és biciklizést) fordítottam arra, hogy megismerjem a Google campust: mint kiderült, Mountain View mellett vannak itt irodák még Sunnyvale-ben és egyéb környező kistelepüléseken is, összesen kb. 2800 iroda, amely jelenleg olyan 30 ezer ember munkahelye. Nagyon tetszett a hangulat, bár persze ez a Google irodákban általában így van, mindenki mosolyog és segít, ha bénázok, a biciklizést a campusok között imádtam, meg a reggeli Google shuttle igénybevétele is tetszett. De azért sokat kell mászkálni, az tény, végre rájöttem, hogy nem szabad a megszokásra hagyatkozni itt, ha a térképen nézem a dolgokat, mert ugye itt más a mérték és az ugyanakkora nem is ugyanakkora. Szóval láttam az Androidokat (amúgy ez gagyi rész), vasaroltam egy Google home minit USA áron a Google store-ban, elmentem a TGIF-re (Sergej és Larry most is nagyon elemukben voltak), és munka közbeni inspiralodaskent elmentem a History of Computers múzeumba (ez volt a látóköröm szélesítése rész). (A képeken ehhez kapcsolódóan egy kis Google történelem látható.)

[techindiasblog]

[michaelpaulukonis]

DAS KLEINE ROTE HANDBUCH

#contemporaryart #digitalart #capitalistneoexpressionism #techspressionism #repetition #neopop #digitalgrunge #digitalcollage #popart #pdp11 #historyofcomputing

[technobroo]

Ever Wonder Why Computer Errors are Called Bugs? 🤔🐛 One of the first computer errors was actually caused by a real bug - a moth that got trapped in a relay and caused a malfunction. From then on, computer errors have been commonly referred to as "bugs." 🖥️🐞 #ComputerError #Bug #Moth #Malfunction #RealBug #ComputerHistory #FunFact #Trivia #GeekOut #Technology #Innovation #Software #Hardware #Coding #Programming #Error #Glitch #Debugging #ComputerScience #STEM #HistoryOfComputers #ViralStory #Trending #ShareThisStory #StayInformed" https://www.instagram.com/p/Cp2c35QP75S/?igshid=NGJjMDIxMWI=

[adambulenda21]

Computing 💻 History at Science and Industry Museum 🏗🏭🇬🇧 📸🍀 Part 2 #Travel #TravelPics #Photography #TravelPhoto #Podroze #Wycieczka #Zdjecia #unitedkingdom #uk #manchester #visituk #visituk🇬🇧 #visitmanchester #visitmanchester🇬🇧 #summer #Sun #Fun #Follow #FollowMe #FollowThem #Walk #Walking #scienceandindustrymuseum #scienceandindustrymuseummanchester #computinghistory #historyofcomputers (w: Science and Industry Museum) https://www.instagram.com/p/CKcArKOnGyq/?igshid=rvrujk9sde1h