HP Forum Archive 20

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OT: Sharp PC-1246S Message #1 Posted by robertoataulfo on 14 July 2011, 3:59 p.m. I have a 1246S with a special feature (please see photos). I believe it is to increase the memory. Someone could help me how to use? Photo 1 Photo 2 Photo 3

Re: OT: Sharp PC-1246S Message #2 Posted by Raymond Del Tondo on 14 July 2011, 4:31 p.m., in response to message #1 by robertoataulfo I tend to think it's a speedup switch rather than a memory switch. OT: I once had one of those 1246S. The rubber coated keyboard is awful, the contact domes under the rubber were very unreliable...

Re: OT: Sharp PC-1246S Message #3 Posted by Maximilian Hohmann on 14 July 2011, 4:48 p.m., in response to message #2 by Raymond Del Tondo Quote: I tend to think it's a speedup switch rather than a memory switch. It's hard to tell from the third photo, but there could be a second RAM chip soldered on top of the other with the red switch selecting one of the two. The way to find out would be to enter a short program, set the switch to the other position and see, if it's still there. And vice-versa.

Re: OT: Sharp PC-1246S Message #4 Posted by robertoataulfo on 14 July 2011, 4:55 p.m., in response to message #3 by Maximilian Hohmann I've tried and nothing has changed (program)

Re: OT: Sharp PC-1246S Message #5 Posted by robertoataulfo on 14 July 2011, 4:51 p.m., in response to message #2 by Raymond Del Tondo Does not increase the speed I've tested (Calculator Speed Benchmark using the N-Queens Problem)

Re: OT: Sharp PC-1246S Message #6 Posted by Marcus von Cube, Germany on 14 July 2011, 4:53 p.m., in response to message #5 by robertoataulfo Max, it may likewise be a higher capacity RAM but the effects of the switch are probably the ones you suppose.

Re: OT: Sharp PC-1246S Message #7 Posted by Eric Smith on 14 July 2011, 6:50 p.m., in response to message #1 by robertoataulfo Possibly with double the memory, and the switch selects between two banks?

Re: OT: Sharp PC-1246S Message #8 Posted by robertoataulfo on 14 July 2011, 7:05 p.m., in response to message #7 by Eric Smith Memory (MEM) reports 7,422 bytes in any position I think I've found the switch function. There are two banks of variables (a. .. z). They are preserved function equal to P <> S HP-67

Re: OT: Sharp PC-1246S Message #9 Posted by Eric Smith on 14 July 2011, 7:16 p.m., in response to message #8 by robertoataulfo That's basically what I said. I think you'll find that it's not just the variables.

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