The Lab
Four DEC replica systems running real operating systems, connected to the global HECnet hobbyist network
LARRY
PDP-11/70
RSX-11M-PLUS V4.6 • DECnet 31.130
PiDP-11 replica with working front panel. Full development environment, multi-user terminal access. Live on HECnet.
Terminal Available
CURLY
VAX 8600
OpenVMS V7.3 • DECnet 31.132
DEC's first ECL-based VAX, emulated via SIMH. Running OpenVMS with full DECnet connectivity. Live on HECnet.
Terminal Available
MOE
PDP-8/I
OS/8 V3D • PiDP-8/I Replica
Fully functional PiDP-8/I replica running OS/8 V3D. Boots multiple operating systems including TSS/8 time-sharing.
Terminal Available
SHEMP
PDP-10
TOPS-10 • 36-bit
DEC's flagship 36-bit mainframe. The computer that built the ARPANET. Running TOPS-10 time-sharing.
Arriving This WeekHECnet
DECnet Phase IV
Hobbyist Ethernet Connect Network
LARRY and CURLY are live on HECnet — a global DECnet network connecting vintage DEC systems across the world. Reach systems in Sweden, Russia, the UK, and beyond.
Network ActiveAbout This Lab
This is a personal collection of DEC computer replicas, each running authentic operating systems from the 1970s and 1980s. The systems are built from Oscar Vermeulen's PiDP kits and SIMH emulation, with real front panels, blinkenlights, and working switches.
All systems named after The Three Stooges. All connected to HECnet, the global hobbyist DECnet network, making them reachable from vintage computing enthusiasts worldwide.