12 Sep
2018
12 Sep
'18
1:17 p.m.
On Sep 12, 2018, at 2:39 PM, Norman Jaffe via cctech
<cctech at classiccmp.org> wrote:
The presence of the words 'NAND GATES' imply that this was part of some
educational kit for logic training, rather than a part of a system.
Could be. Then again, in the early days simple logic functions were packaged as modules
one could buy and plug into connectors to build larger systems. DEC's early logic
module products are an example. And I remember in Holland seeing similar stuff, small
circuit boards with transistors encased in gray plastic cases, with a 10 or so pin plug at
the bottom. These might contain a couple of 2-input NAND gates, or similarly simple
elements. And they would be labelled accordingly.
The fact that the board has tin rather than gold plated fingers does support the
"educational kit" notion; something intended for serious commercial use would be
expected to have more reliable connectors.
paul