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CRISS CP/M - Modern CP/M Computer!

CRISS CP/M - modern computer for entertainment and more!

CRISS CP/M is a modern single-board eight-bit personal computer with great capabilities. Ideal for self-assembly, indispensable in comprehending the basics of computer languages, amazing in functionality.

Basic characteristics:

  • CP / M operating system: many programming languages, games, text editors, spreadsheets, databases;
  • Instruction system: z80 (Zilog) in emulation mode, register-register command execution speed 1 μs;
  • RAM: static, 64Kb;
  • Video adapter: VGA compatible, monochrome, alphanumeric up to 25x80 characters, switchable character tables, graphic mode 160x96 pixels;
  • Storage: SD-card, support for 819 KB floppy images, etc .;
  • Keyboard: standard PS/2, local (RUS and others) and LAT layouts;
  • Printer: standard with serial interface;
  • Communication interfaces: RS-232, system UART;

Additionally, the following components are installed and programmable accessable on the board:

  • Real time clock with backup battery;
  • Ethernet controller with buit-in UDP transport support;
  • Single-tone music generator with amplifier and speaker;
  • GPIO support - up to 128 digital I / O lines (as external I2C block);

CRISS CP/M has its own internal architecture, but it has special settings for hardware platforms and terminals emulation, for now it supports Robotron 1715 RU and EU versions, Kaypro, TRS-80.


  • Unlimited development opportunities.

Power supply: AC 230 V 50 Hz, built-in power supply unit. Overall dimensions: board 10x13 cm, in the enclosure 140x110x35 mm. DIY kit: only DIP elements!


Detailed description of the computer is published in Russian "Radio" Magazine, No. 1-3, 2021. It is 100% open harware project!

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For the subscription issues, please contact the Publishing House, the website of the magazine

If you need additional info in English, please emai requesrl to, subject CRISS.


On any questions, orders, comments, requests, please email us, subject CRISS.

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