I found an HP150 (model 45851A?)--how do I make it work?

Hi Tony, Well, I've never seen one, but the HP-150 FAQ mentions a "45915A: 384k RAM memory with HP-HIL interface". I haven't really done any digging on the HP yet, all I know is what I've learnt by reading the FAQ. OK, the FAQ mentions the following cards: 45630A: 128k RAM memory expansion 45631A: 256k RAM memory expansion 45632A: 384k RAM memory expansion 45915A: 384k RAM memory with HP-HIL interface 45890A: Expanded memory board with 512k of RAM 45891A: Additional 256k RAM for board. and 45914A: HP-HIL card for the 150A and 150B. 45643A: HP-IL and parallel printer interface board. 45640A: 1200 baud modem card for HP 150A/B 45640B: 1200 baud modem card for HP 150 II. I've no idea how exhaustive list this is, I'd guess not very since the 2Mb RAM board you have isn't mentioned. No, I wasn't suggesting it didn't - just that for some reason all the ones I've ever seen (at radio rallies mostly) have been without the touch screen.... TTFN - Pete. -- Hardware & Software Engineer. Sound Engineer. Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC) peter.pachla(a)wintermute.org.uk | www.wintermute.org.uk --