The Argus 400 used 18 small PCBs for its CPU each of which was wire - wrapped to the backplane using 70 miniature wire wraps .
The Argus 400 was repackaged to be the same as the Argus 500 and the two machines were plug compatible .
The Argus 400 used 18 small PCBs for Argus 400 's CPU each of which was wire - wrapped to the backplane using 70 miniature wire wraps .
The Argus 400 was repackaged to be the same as the Argus 500 and the two machines were plug compatible .