Ted Fried's MicroCore Labs Projects which include microsequencer-based FPGA cores and emulators for the 8088, 8086, 8051, 6502, 68000, Z80, Risc-V, and also Typewriter and EPROM Emulator projects.

EPROM: Requires exposure to UV light for erasure, which is a somewhat inconvenient process as it requires the chip to be removed from its circuit. EEPROM: Can be erased electrically, allowing for ...

Bits per word refer to the number of "columns" in the organization of the memory chip. Each column connects to a sense / write circuit (a bit), which connects to data input/output lines of the chip.