This probably has absolutely nothing to do with it, but there was a thing sold in the UK called a 'Simplifier'. It connected between a PC and its keyboard, and had a number of 'function keys' on the top and some LCD displays to label them. There were cartridges for most major PC applications, including Lotus 1-2-3 (I happen to have that cartridge). When in use, the displays would provide appropriate labels for the keys -- for example 'Enter new cell'. You'd then get another menu on the keys with 'Enter number', 'Enter Text', 'Enter Formula', etc. When you pressed one of those keys it would send the appropriate keycodes to the PC to perform the desired action. You could, of course, also use the normal PC keyboard if you wanted to. Has anyone else ever come across this device? -- -tony ard12(a)eng.cam.ac.uk The gates in my computer are AND,OR and NOT, not Bill

James Carter wrote: I took a look at both the PC Jr. and the TI94 and the cartridges are not the same. This cartridge is just a bit narrower than the IBM PC Jr. cartridge but there are only 12 double sided gold fingers on the cartridge PC Board. The board itself has "Digital Controls Inc, copyright 1983" on it along with three 74LS244 chips and an EPROM. Without peeling the label off, I don't know what the chip number of the EPROM is and the only thing I can see is that it is an NEC chip. The EPROM label on this board says "Digital Controls, Inc., Lotus, version 2.0, (C) 1984".