Bringing Life to CP/M the Hard Way on the Altair 8800 - Switches, Tape, and a Bright Pink Floppy скачать в хорошем качестве

Bringing Life to CP/M the Hard Way on the Altair 8800 - Switches, Tape, and a Bright Pink Floppy

In this video I demonstrate loading and using the CP/M operating system by Dr Gary Kildall of "Intergalactic" Digital Research. CP/M (Wikipedia): https://en.wikipedia.org/wiki/CP/M Digital Research: https://en.wikipedia.org/wiki/Digital... Dr Kildall originally created CP/M to allow him to more easily interface his floppy disk drive to an Intel Intellec computer, offering a convenient and standardised method for managing files and interfacing with the core hardware of the computer. Intel Intellec: https://timeline.intel.com/1973/the-i... Garry Kildall was a pioneer of the early computer revolution, helping to improve the way people interfaced hardware and used their computers. Garry Kildall: Wikipedia: https://en.wikipedia.org/wiki/Gary_Ki... digitec.ch: https://www.digitec.ch/en/page/gary-k... Unpublished Memoir: https://computerhistory.org/blog/in-h... In addition to creating CP/M he was also the long time co-host of Computer Chronicles with the show's creator Stewart Cheifet. Computer Chronicles Archive: https://archive.org/details/computerc... First Episode of Computer Chronicles: https://archive.org/details/MainFram1984 Gary Kildall Memorial Special: https://archive.org/details/GaryKild Here I use a hardware and software recreation of an MITS Altair 8800 in the form of the Altair-duino by Chris Davis of Adwater & Stir. Altair-duino: https://adwaterandstir.com For the floppy disk I use a Mitsumi 3.5" floppy disk drive, connected to the floppy disk controller designed by David Hansel and installed in the disk enclosure previously available from Adwater & Stir. Floppy Disk Controller (GitHub): https://github.com/dhansel/Altair8800... Kit and Laser Cutter Files (Adwater & Stir): https://adwaterandstir.com/product/di... Rather than using a PROM containing the Disk Book Loader (DBL) to start the computer and load CP/M from the floppy disk, in this video I use a version of the bootstrap loader designed to be copied into RAM from audio cassette tape. DBLv4-5 Bootloader: http://altairclone.com/downloads/cass... These files were provided by Mike Douglas of DeRamp.com and AltairClone.com. Mike has an excellent YouTube channel with over one hundred videos about the Altair 8800 and other early and vintage computers. DeRamp.com: https://web.archive.org/web/202505031... AltairClone: https://web.archive.org/web/202507242... YouTube:    / deramp5113   To load programs stored as audio on a cassette tape, including the bootloader files provided by Mike, first we must toggle in a cassette tape loader using the front panel switches as well as properly set the sense switches to configure the bootloader. Cassette loader (b.; use 077 to load a disk): https://archive.org/details/bitsavers... Sense switches (A12, A9, A8): https://archive.org/details/bitsavers... In a previous video I demonstrate using this same program to read Microsoft BASIC for the Altair 8800 from audio cassette. To see me toggle in the bootloader in realtime, and for a full explanation of how it works, take a look at my previous video. Altair BASIC from Cassette Tape:    • Booting Microsoft's First Product: Altair ...   Once up and running I give a brief demonstration of some basic commands available in CP/M 2.2 as well as a version of Microsoft BASIC. Here I show ELIZA, the ever popular simulation of a Rogerian psychotherapist. ELIZA is a popular example of a natural language processing application and sometimes cited as an early example of artificial intelligence or AI. ELIZA (Wikipedia): https://en.wikipedia.org/wiki/ELIZA ELIZA program (Creative Computing): https://archive.org/details/CreativeC... I also demonstrate another popular program, Conway's Game of Life. Here I show several generations of the Pi-heptomino methuselah. Life (BASIC Computer Games / Creative Computing): https://archive.org/details/basic-com... Pi-heptomino: https://conwaylife.com/wiki/Pi-heptomino Finally, I demonstrate another version of the Game of Life by Kevin Boone. While this version does not allow the user to customise the playfield, it is written in C and Z80 assembly, so runs much faster. However, the use of Z80 specific instructions does require that your CP/M computer is equipped with (or, as with the Altair-duino, can emulate) a Zilog Z80 CPU. Kevin Boone's Version (GitHub): https://github.com/kevinboone/cpmlife/ Z80 Compatability: https://en.wikipedia.org/wiki/Zilog_Z... ---- CP/M Graphic: https://www.steamgriddb.com/game/5429...