> The only way to tell is to actually open the case. You can tell if a //c contains a Z-Ram or Slinky using AppleWorks v3.0 or higher. Take an AppleWorks startup disk, and delete the files SEG.00, SEG.AM, SEG.XM, and SEG.RM. Then boot up AppleWorks. If it says "Unable to load SEG.AM", you are using a Z-Ram. (or, {parenthetically}you are using a Mac with Deja ][). If it says "Unable to load SEG.XM," you are using a slinky, such as Apple's memory card or Sequential systems' card. If it says "Unable to load" SEG.00 or SEG.RM, you are using a 128k machine or a IIGS, respectively. You can also Peek the memory segment type at $0FE0 while AppleWorks is running. It returns A,X, R, or 0 for ZRam, Slinky,GS, or none. I would think there is also some sort of hardware peek, but I don't know what it is. Beverly Cadieux TEXAS II an international newsletter for users of AppleWorks(R) on the Apple IIe, IIc, and IIGS computer