[Frank Buss] came up with a neat solution to developing for the venerable 4004 CPU – build a ROM emulator using a modern microcontroller. The build started off with a ZIF socket for the 4004 CPU ...

The first microprocessor. Designed by Marcian E. "Ted" Hoff at Intel in 1971, the 4004 was a 4-bit, general-purpose CPU initially developed for the Japanese Busicom calculator. Running at a clock ...

and indeed the first commercially produced microprocessor in the world, which arrived in 1971. Yes, over half a century ago ...

The emu8080on4004 project (Google Translate) offers a way to run 8080 code on a 4004 CPU. Finally! The 4004 development board is a homebrew affair, and the emulator works well enough that an 8080 ...

The video begins by pointing out that the world’s first commercial microprocessor, the Intel 4004 (c.1971), predates the first release of Linux by a fulsome 20 years. This yawning chasm in time ...

In late 1970 Intel introduces a 1K RAM chip and the 4004, a 4-bit microprocessor. Two years later comes the 8008, an 8-bit microprocessor.