This is simple hardware programmer for AM27S19 bipolar EPROM devices. These are TTL logic devices that have 5 bit address and 8 bit data, for a total of (32 x 8 = 256) bits of storage. The programmer ...

In a school project, the goal is to refurbish two old drink dispenser and bring these old devices up to date, and allow them to function for several more years. As the firmware of one of the machines ...

Most video game manufacturers aren’t too keen on homebrew games, or people trying to get more utility out of a video game system than it was designed to have. While some effort is made to keep people ...

[Morten Overgaard Hansen] has a cheap EPROM programmer which he uses to program chips for retro gaming (among other things). He was surprised that although the device includes a 40-pin ZIF socket it ...