> \* Max 128K RAM IBM sold a 128K memory expansion sidecar to bring it to 256K. ...

bdowling on July 15, 2023 | parent | context | favorite | on: 2,500 continuous runtime hours on a 4.77Mhz DOS we...

> * Max 128K RAM

IBM sold a 128K memory expansion sidecar to bring it to 256K. There is also apparently a way to swap in denser RAM chips to make it 512K (640K total).