IBM AT Piggyback Memory

From: Eric Smith <eric_at_brouhaha.com>
Date: Mon Oct 19 17:06:16 1998

Marvin <marvin_at_rain.org> wrote:
> In rummage through the dark recesses of my garage (too densly packed to let
> in light) I again ran across an IBM AT motherboard that used the piggyback
> memory chips. Were there any other computers that used these things?

The Apple /// 128K memory board used 32 pieces of standard 16K DRAM, and
16 pieces of 32K (stacked 16K) DRAMs.

Several TI calculators including the TI-58 and TI-59 use stacked DIPs for
RAM.

The HP-41CX calculator uses stacked DIPs for ROM and RAM.

Eric
Received on Mon Oct 19 1998 - 17:06:16 BST