cat(IV) phototypesetter interface
cr(IV) card reader interface
dc(IV) DC-11 communications interface
dh(IV) DH-11 communications multiplexer
dj(IV) DJ-11 communications multiplexer
dn(IV) DN-11 ACU interface
dp(IV) DP-11 201 data-phone interface
hp(IV) RH-11/RP04 moving-head disk
hs(IV) RH11/RS03-RS04 fixed-head disk file
ht(IV) RH-11/TU-16 magtape interface
kl(IV) KL-11 or DL-11 asynchronous interface
lp(IV) line printer
mem, kmem, null(IV) core memory
pc(IV) PC-11 paper tape reader/punch
rf(IV) RF11/RS11 fixed-head disk file
rk(IV) RK-11/RK03 (or RK05) disk
rp(IV) RP-11/RP03 moving-head disk
tc(IV) TC-11/TU56 DECtape
tm(IV) TM-11/TU-10 magtape interface
tty(IV) general typewriter interface
