Set the "T" switch on the shelf next to the programmer to your computer. There is a fan underneath the EMP-20 programmer that must have proper clearance to prevent overheating. Please make sure all ...

Rather than use a microcontroller to run the relay, [glitch] wrote a simple Ruby script on his computer to turn the EPROM eraser on for the precise amount of time that is required to erase the ...

the Psion MC-400 mobile computer was powered by a 7.68MHz Intel 80C86 processor and featured a 640x400 LCD with no backlight, 256KB EPROM and 256KB RAM, swappable 128KB flash storage drives ...

It refers to a type of computer memory that stores data permanently ... To erase the data, the EPROM chip is exposed to ultraviolet (UV) light, which clears the charge from the floating gates ...

Maybe that’s why you can still get Z80-derived chips readily. There was one thing, though, you needed an EPROM or some other way to run some initial code to bootstrap your system. Zilog knew ...