silo

n 1: a cylindrical tower used for storing silage

2: an underground structure where ballistic missiles can be

stored and fired

silo

The {FIFO} input-character buffer in an {EIA-232} serial line

card. So called from {DEC} terminology used on DH and DZ line

cards for the {VAX} and {PDP-11}, presumably because it was a

storage space for fungible stuff that went in at the top and

came out at the bottom.