[Olivier Bailleux] has created his “Gray-1”, a processor whose only active components are memory chips, both ROM and RAM. The clever part comes with the descriptions of how the ROMs are used ...

A circuit that helps debug a ROM chip by simulating the ROM in RAM (memory). The RAM circuit plugs into the ROM socket, and because RAM can be rewritten and ROM cannot, programming changes can be ...

Which is why [Nick Bild] has come up with the PicoROM, a way to emulate a ROM chip using the Raspberry Pi ... is loaded into the microcontroller’s RAM. With a healthy 264 KB of memory this ...

It is denser and much less costly than "static RAM," its faster counterpart. Unlike non-volatile firmware chips (flash, ROM, EEPROM, etc.), which hold their contents when the power is turned off ...