🎄💾🗓️ Day 7: Retrocomputing Advent Calendar – Altair 8800🎄💾🗓️
The Altair 8800 was one of the first commercially successful personal computers, introduced in 1975 by MITS, and also one of the most memorable devices in computing history. Powered by the Intel 8080 CPU, an 8-bit processor running at 2 MHz, and initially came with 256 bytes of RAM, expandable via its S-100 bus architecture. Users would mainly interact with the Altair through its front panel-mounted toggle switches for input and LEDs for output.
It was inexpensive and could be expanded, creating a following of enthusiasts that launched the personal computer market. Specifically, it motivated software development, such as Microsoft’s first product, Altair BASIC.
The Altair moved from hobbyist kits to consumer-ready personal computers because of its modular design, reliance on the S-100 bus that eventually became an industry standard, and the rise of user groups like the Homebrew Computer Club.
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!
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: Open Hardware is In, New CircuitPython and Pi 5 16GB, and much more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
