Laser 128 - Page 29

GETTING FAMILIAR WITH THE LASER 128/ 128EX
@ The INT / EXT PORT 5 SWITCH selects either t he
INTernal expansion memory interface or the
EXTernal peripheral interface card installed in
the optional expansion box as the I/ O device at
port 5 of the computer. An 1/ 0 (Input / Output)
port is the channel through which a computer
co mmunicates with the real world . Th e re are a
total of seven 1/ 0 ports in the computer.
@ The INT / EXT PORT 7 SWITCH selects either the
INTerna l 3.5" disk drive interface or the
EXTernal peripheral interface card plugged in the
expansion connector or expansion box as the 1/ 0
device at port 7 of the computer.
!-16