Type 750C Module Utilization List
Douglas W. Jones, July 30, 2026
24 25 26 27 28 29 30 31 32
BOB R123R123R202R302W040R203R203R203W021
PWR CLR IM6 RDR
RUN
DRIVE
DELAY
DRIVE
PULSE
RD0 RD3 RD6 READER
CONN.
PWR CLR IM7
SKIP IM8 RD1 RD4 RD7
INTERRUPT IM9 RDR
FLAG
STROBE
DELAY
IM4 IM10 RD2 RD5 —
IM5 IM11

On the University of Iowa's PDP-8 S/N 85, this module utilization list replaces the section of DEC's Drawing D-34D-0-3 rev J from 10/11/67 that deals with the Type 750C High Speed Reader interface. That is, columns 24-32 of row B (or row BOB in DEC's notation, where the prefix B may mean I/O bus, and the prefix O may mean Oscilloscope, because this interface was bundled with the scope interface).