As of 2025, it’s entirely possible to find a real, working PDP-11 system, though it would likely be in the hands of collectors, museums, or vintage computing enthusiasts. Here’s how you might encounter one:
1. Vintage Computer Collectors & Museums
- Living Computers: Museum + Labs (formerly in Seattle, now possibly in private collections) had operational PDP-11 systems.
- The Computer History Museum (California) or private collectors may maintain restored units.
- European retro computing groups (like those in the UK, Germany, or the Netherlands) sometimes keep PDP-11s running.
2. Emulation & FPGA Replicas
If you’re looking for a functional PDP-11 experience (rather than original hardware), modern solutions exist:
- SIMH Emulator – Accurately simulates PDP-11 hardware and runs classic OSes like Unix V6, RT-11, or RSTS/E.
- FPGA Implementations – Some hobbyists build PDP-11-compatible systems on FPGA boards (like the DE10-Nano).
- Raspberry Pi PDP-11 – Some projects emulate a PDP-11 on a Pi.
3. Where to Buy an Original PDP-11 (2025)
- eBay – Occasionally, PDP-11s (or parts) appear, but prices can be high (1,000–1,000–10,000+ depending on model).
- Vintage Computer Forums – Places like VCFed (vcfed.org) or The Retro Computing Forum sometimes have listings.
- Auctions – Estate sales or university liquidations may still yield old DEC hardware.
4. Challenges of Running a Real PDP-11 in 2025
- Power supplies & failing components (like old capacitors) may need replacement.
- Magnetic media (like RL02 disks) are rare; many use modern replacements like SCSI or SD card adapters.
- Spare parts are scarce, so repairs require skill.
Conclusion
Yes, a real, working PDP-11 likely still exists in 2025—but unless you’re a serious collector, emulation or FPGA recreations are more practical. If you’re determined to own one, check vintage computing communities and be prepared for maintenance challenges.
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