Ewart North wrote:
>
> Yes I do!
>
> Brilliant machine  I started my DP career on that in 63 although it was
> known as the ICT1500 in the UK.  I still have my original machine code
> manuals and the FAS (1500 Assembler system) manual.  Not unknown for a
> program to go wrong (a bug?) and write garbage into the print table, made
> debugging interesting!


Talk about in memory tables.  Do you remember the IBM 1620?  It's code
name
was the:
C  Can't
A  Add
D  Doesn't
E  Even
T  Try

It had an internal add table.  In effect the system added two decimal
digits by
accessing a table.  I forget the details, but you sure got weird results
if
you messed (either intentionally or unintentionally) with the table.

Nick D.