cpmemu – a CP/M emulator for Raspberry Pi #PiDay #RaspberryPi #VintageComputing #RetroComputing @Raspberry_Pi
CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created in 1974 for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc. Initially confined to single-tasking on 8-bit processors and no more than 64 kilobytes of memory, later versions of CP/M added multi-user variations and were migrated to 16-bit processors.
Arguably, we came close to having CP/M instead of MS-DOS dominate computing on PCs. But Microsoft got the contract for PC-DOS from IBM and the rest is history.
Some very cutting edge software was on CP/M including Wordstar, dBaseII and Supercalc.
You can run your own version of CP/M using an affordable Raspberry Pi. There seems to be variants out there, but cpumem appears to be a great choice.
CPMemu is a CP/M 2.2 emulator running on the Raspberry Pi and on other Linux systems. On the Raspberry Pi CPMemu can be used as a bare metal solution based on the Circle environment.
Currently CPMemu does not implement a specific set of terminal control sequences. Instead it sends all characters unchanged to the console.
Once you have your operating system up and running, you can jump to The Unofficial CP/M Web site to get all kinds of software and documentation thanks to the work of Tim Olmstead. Some additional emulators are listed on the site.
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 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython 8.1.0 and 8.2.0-beta0 out and so much more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
