6 Oct
2008
6 Oct
'08
12:43 p.m.
I notice that edge connectors are a lot less common
than they used
to be. [...]
What's the difference between an "edge connector" and,
say, the
connector used for a PCI card or a modern peecee memory stick? I have to admit the latest memory modules that
I've handled are
SIMMs. The connector on those is _close_ to being an edge connector,
but [...actually pressure, not wiping...]
Ah yes, I'd forgotten about that. DIMMs don't do that, at least in my
experience; they are wiping contacts, very much like PCI or ISA slots.
(I speculate that this is because while, like SIMMs, they have
connection pads on both sides, they also, unlike SIMMs, connect
different things to different sides' pads - and the pressure connectors
SIMMs use aren't very well suited to that sort of pinout.)
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