wanted the history of the daughterboard hobbymadetheirown

all people that made their own design if you know
of anyone ? write about them here please ? i sent
a sketch to an engineering company ! could this interface be changed to edit sketches ?
………………………………………….
\…..static ram slot …………………….\
.\…..dynamic ram slot…………………….\
..\…..rom operating system…………………\
…\…..rom basic language……………….\
….\…..rom database…………………….\
…..\…..rom spreadsheet………………….\
eight slots this side
other side
eight more
./.lan card………………………………./
../..net ring card…………………………/
…/..4 lan cards…………………………./
…./…4 modem cards………………………/
.
.
anybody do anything similar in the early 1980’s ?
PLEASE WRITE IT UP HERE ?
lawrephord214@hotmail.com