N. Brown's latest activity

As far as communication standard the System 36 supports that is listed in its manuals. The system supports : Async Formats formats, Sync...

In your System/36 model 5363 message, it doesn't state much about the system configuration. So any forum reader, should take it that the...

I wasn't going to reply to this entry but I decided may I should as others haven't. .. You should also look at the ROM memory paging...

Ha if you have an external Quest made QL Firefly Hard drive and or a Quest made OScard then please message me directly. .. I had a...

With a little more thinking, one of my earlier ideas above has been ruled out as impractical. The idea of having a processor direct slot...

I cannot contribute much (don't even have a QL) but I recently found out about the SuperIO and thought about how it could be used with...

There are many SuperIO. The fun part is that most have a compatible group of parts that use verty standard interfaces. I love that the...

YA, to use a Super I/O chip from an Intel based PC clone would be the ideal way to go. Easy to interface to other microprocessors and...

The standard IBM PC and PCXT use the following addresses for the NPU addressing (in Hex format) 0F0 Clears Math Coprocessor Busy Signal...

The management at Zilog has been brain dead for years now. By now you thing they would of had standard Z80 microprocessors that run...

The Modify Int.. Vector is not the same one that used to modify the 100A to a 100B Level. For this revision I can longer find the...

The Memory Adapter with the optional 8087 Option pictures I originally uploaded, could be different then the ones that BIGFIX provided...

After 48 years, Zilog is killing the classic standalone Z80 microprocessor chip (official notice was issued April 14 of this year) The...

I came across http://bitsavers.trailing-edge.com/pdf/intel/ISIS_II/121725-001_8087_Support_Library_Reference_Nov83.pdf which mentions an...