Friendly fZ80 is a new, modern desktop computer that runs CP/M 2.2 and MP/M II 2.1, Digital Research's multi-tasking operating system for the 8-bit 8080 and Z80 microprocessor. fZ80 is built around a modern processor, uses a modern (VGA) display, modern keyboard, USB power and SD card storage. Most recent hardware version is 6. Cabinet aesthetics and finish are improved. The manual has nearly doubled in size. MP/M operation is discussed including how to effectively set it up for daily use. Here are some construction photos.
There are now 35 fZ80's in the field; 10 produced December 2025, and 25 sold in September 2026. I have enough components I think to assemble another five units this year. The complete Kicad file set, not just Gerbers and drill, are at/near the end of this page.
fZ80 CP/M has a 61K program area; MP/M has 208K memory in four banks, capacious by standards of the day. The emulated Z80 has an equivalent clock speed of approximately 70 MHz, and passes all known Z80 compatibility tests.
Housed in a painted aluminum cabinet approximately 8" x 4" x 2", the rear contains serial and parallel port connectors with "IBM PC" pinouts, plus USB-C connectors for keyboard and power.
Use the links in the bar at the top of the screen for provided CP/M and MP/M software, hardware details, manuals and other documentation and features.
Here are a few simple videos of the fZ80 in use, to get a sense of what it's like to use; boot CP/M, run MP/M, multiple "busy" screen programs, an example compile, etc.
There is a fZ80 Operator's Manual and documentation for all of the software and hardware involved. A printed manual (5" x 8", 208 pages) is included with every machine.
CP/M and MP/M software is found at the Software link in the bar at the top of the screen. Machine firmware updates and process are available here.
Two people have actually asked for Gerber and drill files for the board. Meh, have the whole thing: here is a ZIP file containing Kicad source and libraries for the project. Install Kicad, unzip this in the Projects folder, you should be able to open them.