C
Machines, operating systems and chips beginning with C.
Emulators
| Emulator | What it emulates | Type |
|---|---|---|
| C64 Forever | Cloanto's official Commodore 8-bit emulation, preservation and game-database suite for Windows. | downloadable |
| CCS64 | Highly compatible Commodore 64 emulator by Per Hakan Sundell running most games, cartridges and tape images. | downloadable |
| CEN64 | Cycle-accurate Nintendo 64 emulator that models the console's chips at a low level. | downloadable |
| CH32V003 | The famous ~10-cent WCH CH32V003 (QingKe RISC-V RV32EC) running real compiled firmware in a web browser: the on-board user LED on PD0 and a USART serial console, with a full RISC-V debugger. | online |
| CH32V307 | The WCH CH32V307 (QingKe V4F, RISC-V RV32IMAFC with a hardware FPU) running real compiled firmware in a web browser: on-board user LEDs, a button and a USART serial console, with a full RISC-V debugger. | online |
| COSMAC ELF | An in-browser RCA 1802 Cosmac ELF: a hand-written 1802 CPU and front panel (hex keypad, two 7-segment displays) with a full debugger, booting a running counter demo. | online |
| CP/M Box | Browser-based emulator of the Amstrad PCW CP/M computers by Habisoft. | online |
| CPCBox | Cycle-exact Amstrad CPC emulator written in JavaScript that runs in the browser. | online |
| CPCemu | Long-running Amstrad CPC emulator by Marco Vieth for DOS, Windows and Linux. | downloadable |
| Cadmium | Comprehensive multi-variant CHIP-8 emulator and debugging environment with behavior presets. | both |
| Calliope mini | The Calliope mini v1 in the browser: a Nordic nRF51822 (ARM Cortex-M0) driving the real 5x5 LED matrix, A/B buttons and accelerometer, running original bare-metal programs with a full Cortex-M0 debugger. | online |
| Cambridge Z88 | In-browser Cambridge Z88 emulator: a JavaScript Z80 with a port of the Blink gate array, booting the OZ operating system, plus a full built-in debugger. | online |
| Camputers Lynx 48K | Online Camputers Lynx 48K emulator (1983 British Z80 home computer) booting to BASIC, with a Zilog Z80 debugger, hex/disassembly views, write watchpoints and an on-screen keyboard. | online |
| Capcom CPS-1 Classics | Capcom CPS-1 arcade classics — Ghouls'n Ghosts, Strider, Willow and U.N. Squadron — in the browser (FinalBurn Neo WebAssembly) with an in-frame Motorola 68000 debugger. | online |
| Caprice32 | Open-source emulator of the Amstrad CPC 8-bit home computer range for Windows, macOS and Linux. | downloadable |
| Casio fx-7000G | In-browser Casio fx-7000G, the world's first graphing calculator (1985), as a from-scratch JavaScript functional model with a full CPU debugger. | online |
| Catakig | Open-source Apple II emulator for macOS supporting the ][, ][+, //e and //c. | downloadable |
| Centipede | The original 1981 Atari Centipede arcade machine (plus Millipede), running in the browser with an in-frame MOS 6502 debugger. | online |
| Chankast | First publicly released Dreamcast emulator to run commercial games at playable speeds. | downloadable |
| Chip8.js | CHIP-8 emulator in JavaScript running as a web, CLI and native app. | both |
| Circuit Playground Express | The Adafruit Circuit Playground Express in the browser: a real SAMD21 Cortex-M0+ driving 10 NeoPixels with genuine WS2812 decode, an on-board speaker, buttons and accelerometer, with a full ARM debugger. | online |
| Classic99 | Accurate Windows emulator of the TI-99/4 and TI-99/4A home computers with TI-licensed ROMs. | downloadable |
| ColecoVision | A pure-JavaScript ColecoVision emulator (Z80 + TMS9918A) with a full in-page debugger and an open boot ROM. | online |
| Colossus | The world's first programmable electronic digital computer in-browser — an original from-scratch simulation of Tommy Flowers' 1944 Colossus, the special-purpose valve machine that broke the German Lorenz (Tunny) cipher at Bletchley Park by counting Bill Tutte's double-delta coincidences off a ciphertext paper-tape loop. Not a stored-program computer: it counts. No CPU, no ROM. | online |
| Commander X16 | The Commander X16, David Murray's modern 8-bit computer with a WDC 65C02 and the VERA video chip, emulated in your browser and booting straight to BASIC. | online |
| Common Source Code Project | Takeda Toshiya's collection of accurate emulators covering dozens of Japanese retro computers. | downloadable |
| Cray-1 | Browser emulator of the Cray-1 vector supercomputer: authored scalar and vector core with a full register and vector-register debugger. | online |
| Curta | Browser model of the Curta Type I, the 1948 hand-cranked mechanical pocket calculator: an authored stepped-drum core with sliders, crank and counter rings, and a full operation-tape debugger. | online |
| c128 | Commodore 128 emulator that runs in a web browser, booting to Commodore BASIC 7.0 with a full 8502 debugger. | online |
| c64js | Commodore 64 emulator written in JavaScript that runs directly in a web browser. | online |
| cfunge | A fast, standards-compliant Befunge-93/98 interpreter in C that passes the Mycology test suite. | downloadable |
| cpcjs | Amstrad CPC 464 emulator written in JavaScript that runs directly in a web browser. | online |
| cpm-z80 | CP/M 2.2 for the Intel 8080 that boots to the A> console prompt directly in a web browser. | online |