Table of Contents General Archives Knowledge Bases Emulators ZuluSCSI Data Recovery Uncategorized AT&T Heathkit HP Z80 CP/M S-100 Multibus MS-DOS Sun Microsystems Symbolics VME Microprocessors OS9 DEC IBM - Mainframe IBM - AS/400 Data General SGI Transputer Intel Modems and BBSes Calculators Benchmarking Possible Porting Projects General Archives OS Archive Another OS and documentation archive Vetusware ftp.zx.net.nz archives Bitsavers magazine archives Phenomenally useful mainframe, minicomputer, and UNIX guides (cheat sheets) The Retrocomputing archive (Gene Buckle) The Aztec C Museum (compilers, docs, etc) S100Computers.com archive of useful assembly language routines (8080/Z80, 8086) Dave Dunfield's system disk archive (lots of CP/M) Will's Works archive, as of 2025 shop-pdp main page shop-pdp stuff page Knowledge Bases Patrik Schindler's knowledge base (fantastic) Emulators TME (new repository) QEMU software, images and notes (SunOS/Solaris, AIX) Connecting to a remote serial port via TCP/IP Booting HP98x6 systems through SRM (MAME) ZuluSCSI ZuluSCSI wiki ZuluSCSI firmware Data Recovery Article: FM, MFM, GCR article Article: Recovering "lost" treasure-filled floppy discs with an oscilloscope Uncategorized Wichit Sirichote's projects Jason T's software archive PROM/EPROM reference WordPerfect for UNIX character terminals Snoopy Calendar Snoopy Calendar (more) AT&T 3B2 emulator 3B2 Software Archive 3B2 Tech Tips Heathkit HT-11 with Qbone memory thread Booting real RT-11 on an H-11 thread HP Series80 John A's HP Series 80 site Vassilis Prevelakis' HP Series 80 site PRM-85 HP-9000 Martin Trusler's HP-9000 Series 300 site HPUX 10.20 builds of open-source software HPUX 10.20 builds of open-source software (more) HP-1000 etc Tony Duell's reverse-engineered schematics Single-User HP BASIC HP 9885M thread HP-IPL/OS Z80 Z80 Opcode Reference Chart Z80Pack Z80Pack repository Autometer Z80 tools Homebrew Z80 Systems CP/M CP/M Commands Reference The HUMONGOUS CP/M Software Archives The R Lee CP/M Commercial Software Collection The Unofficial CP/M Web site Retroarchive's Commercial CP/M Software Archive (Gene Buckle) Peter Schorn's CP/M site (simh) Working with .LBR files on CP/M Compression and Archiving on CP/M RomWBW Updating, building, flashing RomWBW on an SC130 (general) Programming with CP/M (huge) MIT-MC CP/M archive Walt Perko's Altair software repository zimmers.net CP/M archive (C128) CP/M Networking Tutorial (CP/NET) Telnet RCPM thread on comp.os.cpm (archived S-100 S100Computers Cromix Building RT11 TU58 image Jay's PDP-11 S-100 processor board info Bill Sudbrink's Cyclops page Multibus Bill Beech's Multibus/ISIS/etc archive MS-DOS Packet Drivers DOSBox DOSBox-X EtherDFS EtherDFS-3 DJGPP Zip File Picker Sun Microsystems SunOS 4.1.4 pre-built images and other stuff OS Archive's SunOS/Solaris section Symbolics Douglas Fields Symbolics info Douglas Fields Symbolics info (new site? or just albums) VME The m68k and m88k resource Linux support for VME Microprocessors Intel Vintage Intel Vintage (projects) FLEX, FDOS, UniFLEX, OS-9, and Minix for 6800, 6809, and 68K resources SWTPC Reproduction Boards 6502.org 6800 BASIC thread M68K Marc's M68K Resources Kiwi 68K SBC - software Alan Garfield - More fun with the m68K (AMX board) Cromix Cromix (boot monitor) Cromix (SIO config) Cromix (boot) Designing a 68000 SBC Wouter's Page - My 68000 Stuff Kit68K Microbox Archive M6800 Some 6800 Programs Altair BASIC for the 6800 TMS9900 and related TMS 99110 (or 99105) Breadboard or PCB System TI TM990 modules TMS 9900 Breadboard or PCB System TMS 9995 Breadboard or PCB System OS9 Getting started with NitrOS-9 NitrOS-9 Commands Reference NitrOS-9 Technical Reference Inside NitrOS-9 DEC PDP Field Guide (current) VMS FAQ XXDP Diagnostics Database PDP-11 Standard Absolute loader format John Forecast's updated DECnet stack for Linux 9track.net tape archives VAXhaven VMS CD image archive VAXhaven TK50 image archive VAXhaven paper tape archive The PDP-11 archives at pdp-11.trailing-edge.com Doug Jones': Omnibus Modules List Doug Jones' PDP-8 Programmer's Manual Update CC's PDP-11 archive Developing for a PDP-11 Programming a Barebones PDP-11 Bare-metal PDP-11 code samples BASIC-11 DECUS C MCP-1600 etc reverse engineering project HECnet Map HECnet node database BQTCP/IP Manual PDP-11 and MFM disk emulator stuff Roland Huisman's github repositories (DEC board redesigns) 22-bit Qbus conversion RSTS-E Patches etc 5volts.ch PDP-11 projects (J11 SBC) pdp11.org.ru (form) archives VAX-11/750 registry VMS C programming examples VMS RMS and RDB LAT terminal server notes Cooking for the PDP-12 Straight-8: Bizarre DTL Logic Levels Straight-8: Power Supply Restoration V7M-11 (repository) C Programming on a bare metal PDP-11 VMS Ports uq.edu.aw scan archives (on bitsavers) wfjm's DEC documentation archive TOPS-20 Commands Reference Manual RTEM‑11: RT‑11 under RSX‑11M/M‑PLUS, P/OS, VAX/VMS Ultrix 3 VAX (Patrik Schindler's knowledge base) Ultrix 4 (Patrik Schindler's knowledge base) OSF/1 1.0 on DECstations (Patrik Schindler's knowledge base) PDP-11 online assembler IBM - Mainframe Rex Swain's xedit summary Cisco - CLAW etc Devices that work with IBM TCP/IP IBM VM Download Packages IBM - AS/400 The AS/400 Museum (Jeroen) 5250 USB converter Integrating LAN-less Machines into a local Token Ring Data General Alexander Pierson's DG resources Nova-3 Front Panel Reference SGI SGI Freeware inst link ("inst -f https://ftp.zx.net.nz/pub/archive/sgi-freeware/Inst") SGI User Group forums LOVE network installer for IRIX IRIX 3.3 netinstall (Personal IRIS) (Patrik Schindler's knowledge base) irixnet Indigo2 info IRIX distributions efsextract Silicon Graphics Technical Document Archive Silicon Graphics User Group RPM Software Environment Smithnet IRIX page (lots of install/setup info) Andrej Bukosek's Origin 3400 page (lots of troubleshooting info) Transputer Updated ispy/mtest New Linux link driver Python ispy for new link driver IPCA Transputer resources Axel Muhr's transputer resources Ram's Transputer Home Page Ram's Transputer software library oc-ray Another raytracer XTrace Intel Herb's MCS 4/40 and UPP info Herb's Intellec current loop interface schematic Modems and BBSes Setting Up Virtual Serial Ports and Modems in Linux The BBS Software Directory RetroBBS Archive BBS Source Site Zimodem (ESP32) Hayes AT Command Set Calculators VintageCalc HP-41C Owner's Handbook and Programming Guide Dial Calculator Construction Dial Calculator video Benchmarking Classic Benchmarks Possible Porting Projects XINU libc for 68K