Apple
 Image Gallery - MacOS
 The Mothership! - early Mac and Lisa archive
 Apple's Twiggy Disks
 Apple Lisa
 Lisa Emulator Project
 Macintosh Stories: Busy Being Born
 Apple A/UX
 NextStep 0.90 Screen shots
 Rhapsody DR1 Demo - YouTube
 Apple - Mac OS X
 Apple-History
 XGS/32
 Quark Catalyst
 Previous NeXT Emulator Home Page

Amiga
 Workbench Nostalgia
 Official AmigaOS Portal
 AROS - The Amiga Research OS
 MorphOS Home Page

Apollo
 Apollo Photo Gallery
 Apollo DomainOS info and archive
 Apollo DN 3500
 Apollo Domain Series 3500
 HP 9000/400t (HP-UX 9.x / DomainOS 10.4)

AtheOS
 AtheOS - free alternate operating system
 Introduction & Review of AtheOS 0.3.7 - OSNews.com

BeOS
 First Look at YellowTABs Zeta
 BeOS 5 User's Guide : Table of Contents
 Haiku Operating System

Tandy Deskmate
 TVDog Tandy Archive
 Tandy Sensation Demo - WinMate - YouTube

GEM
 Screenshots of GEM
 GEM Workshop
 GEM-related news and development
 NeoDesk - A revolutionary replacement for the built-in desktop
 ATARI.ORG / Pathfinder : ST : Emulation
 The Little Green Desktop - The Real Atari ST!

GEOS
 Geos Web Page
 Remember Q-Link
 Unofficial GEOS Web Page

Linux / Unix
 KDE - Screenshots
 GNOME
 Enlightenment Home Page
 Official AfterStep Site: Themes Page
 icewm - Home Page
 The MGR Window System
 More Window Managers for X
 WineHQ
 Unix Desktop Environment-Project
 The Machine Emulator
 Peter's Sun3 Zoo
 Sun3 Archive
 The NetBSD Project

OS/2
 OS/2 V1.0 (non graphical) screen shots
 OS/2 V1.1 and 1.2 screen shots
 OS/2 V1.3 screen shots
 OS/2 Warp, PowerPC Edition
 OS/2 Warp 4 Desktop Tour
 eComStation Screenshot Gallery
 Project Odin
 OS/2 Warp History

Perq
 PERQemu: A PERQ 1 emulator
 PERQ Workstations
 FAQ for PERQ Graphics Workstations
 DigiBarn: PERQ T2, Ad and other PERQs
 Perq Single User Systems Overview
 Perq Floppy Disk Images
 Perq Documentation
 Video of a PERQ on Youtube

QNX
 QNX Photon microGUI
 Get QNX Realtime Platform
 QNX DEMO disk

RISC OS
 RISCOSltd
 History of Acorn & RISC OS
 Acorn RISC OS
 Technical history of Acorn
 RISC OS, !Draw, menu, and file save test - YouTube

Visi On
 Visi On History
 Computer Chronicles - Video of Visi On and Apple Lisa
 VisiCorp speaks.
 VisiCorp 1978-1984 (PDF)

Windows
 ReactOS - The future replacement for Microsoft Windows
 98lite: Windows98 *without* IE
 The BOB Chronicles
 Calmira home page
 The Windows® 95 User Interface: A Case Study in Usability Engineering
 Microsoft Does Windows - InfoWorld, Nov 1983
 Fall Comdex 1983 Part 3 of 3
 Microsoft Windows 3 and NT, 1991
 Bill Gates demonstrating NT in 1991 (part 4 of above)
 The Secret Origin of Windows
 Usability Expert: Windows 8 on PCs is Confusing, a Cognitive Burden
 Design guru Nielsen: Windows 8 UI 'smothers usability'
 Get Great Windows 8 Features Without the Upgrade
 Windows 1: VGA Resolution

Xerox
 Xerox Alto Operating System And Alto Applications
 The Xerox Alto Computer
 DigiBarn: A Brief Telling of the story of the Elixir Products
 A Decade of Research @ Xerox PARC
 Xerox Alto computer
 SmallStar (Bitmapped screen shot of Xerox Star)
 Xerox Star Historical Documents
 Xerox Star Research
 Xerox Mesa System Emulator
 Xerox Star Professional Workstation (1981) - YouTube
 Xerox Star User Interface (1982) 1 of 2 - YouTube
 Xerox Lisp - Data Analysis Networks in DINDE (1986) -- Part 1 - YouTube
 The Smalltalk-80 Programming System - YouTube

Future GUIs and previews
 ROOMS 3D
 Doom as an Interface for Process Management

Misc
 Doug Engelbart 1968 Demo
 Blit Terminal
 PCmuseum - screenshots of misc old OSes
 MenuetOS.org
 Plan 9 and its window manager "8 1/2"
 The Microwindows Project
 BTRON-based Products
 Pascal Graphical Environment
 SymbOS
 History of the graphical user interface
 Tektronix 4404 Smalltalk Demo (1984) - YouTube
 The HP150 Touch Screen: a cautionary tale at Commonsense Design
 Hewlett Packard Touchscreen 150 Computer - YouTube
 Using Magic Cap

General UI
 Bad Designs
 The condescending UI

Downloads

Downloadable GUI programs.
TechKnight.Com | Endangered Software Archive Windows 1.01, 1.03, 2.03 and MS-DOS 1.10.
VisiCorp Visi On Bootable 1.4 meg disk image - includes the tutorial and the word processor (this requires a Mouse Systems PC Mouse compatible serial mouse to run)
A preconfigured Visi On zip file of Visi On with executables for XT and AT computers. This includes Graph, however Graph will only run on an XT. The Original unaltered files from the install disks, and Floppy Disk Images dumped by various utilities.
Visi On hard drive image for use with MESS, mess1001_w95.zip needed to run it, and the required MESS ROMS: IBMPC.ZIP, PC.ZIP, and IBM5150.ZIP
Visi On Manuals:

Visi On AM Setup Guide.pdf Visi On AM Users Guide.pdf Visi On Calc QuickStart.pdf

Visi On Calc Users Guide.pdf Visi On Calc Working In Windows.pdf Visi On Graph QuickStart.pdf

Visi On Graph Users Guide.pdf Visi On Word QuickStart.pdf Visi On Word Users Guide.pdf

Windows 1.01 1.4mb boot disk - A self contained pre-configured easy to make disk that boots to Windows 1.01 on any PC.  Take the Win 1.01 challenge!
(1.x Apps: WineMine, Balance Of Power, PageMaker 1, VGA/VESA Driver, Demo Apps, Cake!, More Sample Apps)
(2.x Apps: Corel draw 1.10d, PageMaker 3, PC Mag Permance Tests, Designer 2, Klotz, PubTech File Oranizer 2.11, Paradise & Video 7 Drivers, Kermit, AMI Pro 1.2 [Spanish], ABC Flowcharter 1.11, PC Paintbrush Win1.22, Draw Plus 1.1, Magic Screen Saver 1.02, Metz Desktop Navigator 2.41,
2.50, 2.53, Comand Post 5.2)
Windows 95 Manual.pdf - manual for Windows 95
GEM World Download GEM 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1, 2.2, 3.0, 3.01d, Viewmax, and GEM source code!
BeOS V5.0 Personal Edition - a FREE version of BeOS 5 that can be installed from Windows.
QNX Demo Floppy, Modem Version V4 - QNX OS + Photon GUI + PPP  + Voyager browser on a single 1.44 meg disk!!!
QNX Demo Floppy, Network Version V4 - QNX OS + Photon GUI + LAN  + Voyager browser on a single 1.44 meg disk!!!
QNX "Floppy" Demo CD ISOs - The same floppy disks demos, but as bootable CDs
QNX Extensions - a complete list of extensions for the QNX 1.44mb floppy demo.
QNX 6.21 Install/Live CD
Get QNX Realtime Platform - Evaluations versions of QNX.
Download Oracle Solaris - Solaris  .ISOs
Basilisk II - A free Macintosh emulator (emulates color 68K Macintoshes). You will need one of the Mac Quadra or 1024k ROMs
vMac - A free Macintosh emulator (emulates a MacPlus). You will also need a Macintosh 128k ROM also old versions of MacOS
MacOS 7.5.3 and the update to MacOS 7.5.5 - Straight from Apple's web site. And because I get asked so much:  Installing Mac OS 7.5.3 on Basilisk II and  CFM-68K Runtime Enabler 4.0 for Netscape and Archived versions of Netscape for 68k Mac Also Appearance manager to give MacOS 7.5.5 the MacOS 8 3-d look.
Apple IIGS/OS 6.0.1 - Straight from Apple's web site
The Apple II Desktop - a Macintosh like desktop for the Apple II series (Now includes floppy disk images).
ApplePC 2.52b emulator - an Apple II emulator that can run the Apple II desktop. Also needs the roms.
Breadbox Ensemble Lite
Geos for the Apple II
GEOS for the C64 and C128
The eComStation Demo CD - A free demo CD of the latest and greatest version of OS/2
OS22Demo.zip - An animated slideshow demo of OS2 Version 2.0
OS2demo.zip - An animated slideshow demo of OS2 Warp V3
Acorn Archimedes Emulators  - Emulates RISC OS 2.0 - 3.11
DESQview and DESQview/X
OS/2 Workplace Shell for MS-Windows 3.1 (does not work on Windows 9x)
Prodemo.zip - An animated slide show of GeoWorks Pro (PC-GEOS) Version 1.2
NewShell for Windows NT 3.51 - add the Windows 95 shell to NT 3.51
NewShell 2 for Windows NT 3.51 - same as first version except fixes a couple of compatibility issues.
PubTech File Organizer 2.11 for Windows 2.x
PubTech File Organizer 3.10 for Windows 3.0
Calmira Desktop for Windows 3.1
Screen Savers for Windows 3.1
Allgemeine Downloads (has MS-bob)
GlobalView 2.1 for Windows 3.1, 95, 98
SunOS 4.1.4/Solaris 1.1.2 CD-ROM ISO for Sparc Sun-4 machines.
GlobalView for X 1.05 - SunOS 4.1.4 version
GlobalView for X 1.00 - SunOS 4.1.3 version
Power Menu 4.11 (A text based Menu/File manager for DOS)
Tandy Presents the World of Multimedia (made with the sounds from Windows 3.0 MME)
Video 7 VGA1024i and Paradise driver disks - 256 color hi-res Windows 2.x drivers (and others) for these video cards.
NewWave Desktop - HP NewWave Desktop for Windows 3.0
Central Point Desktop - Central Point Desktop for Windows 3.1
Tandy Sensation CDs - Includes Tandy WinMate
Xerox Rooms for Windows - Rooms for Windows 3.x
Mouse.zip - Microsoft's 1983 Bus Mouse drivers and utilities for DOS. Includes PIANO.EXE.
Salto.zip - The Xerox Alto Simulator for Windows with disk images.
Microsoft Word 1.15 for DOS.zip - Disk images of Microsoft Word 1.15 for DOS
MS Word 1.00 for DOS Manual.pdf - The original Word for DOS 1.00 Manual in PDF format.
MS Word 1.00 for DOS Manual 1.1x Update Pages.pdf - A set of pages to update the above 1.00 manual for 1.15.
Microsoft Word 1.00 PC World Demo.zip - A free demo of Word for DOS 1.00 distributed by PC World.
Previous NeXT Emulator .4 MMU branch for Win32 - The version I used, that I know works and runs on Win95.
IBM CUA Samples Diskette 1.0 - A sample program for DOS that demonstrates IBM CUA components.
AT&T Unix PC 3B1 Emulator.zip

Videos

These are a few videos I experimented with creating. You may view them in your browser, open them in an external media player, or download them. Unlike Youtube, which soaks your head in brainwashing advertising.

Windows 8 Advertisement PARODY.mp4
This is a parody of a Windows 8 advertisement using Microsoft Windows 1. Mainly because Windows 8 brought back forced tiled ("Metro") windows.

QNX 1.4mb Floppy Disk Demo.mp4
This is live demonstration of QNX running on real hardware - using only a 1.44mb floppy disk and no hard drive -, captured using a VGA video capture device. At the time this was made, no emulator could properly run the QNX 1.44mb demo.

The Xerox Alto In Action.mp4
This is a demonstration of the Xerox Alto graphical file manager and applications running in an emulator - edited for time since the Alto and emulators were quite slow.

VisiCorp Visi On in Action.mp4
This is a video that shows Visi On in action running in an emulator. This gives you an idea of not just how it looked, but how it would have run on a 4.77mhz 8088. It is a bit slow, but is quite impressive if you realize it is all running in a Smalltalk style byte-coded virtual machine.

Apple II Desktop In Action (Apple IIe 128k).mp4
This is a video demonstrating Apple II desktop running in an emulator. This is a Macintosh stile file manager running on a 6502 machine that is much less powerful than the original Macintosh, runs from a 140k 5.25" floppy disk, and uses only 128k without the benefit of a graphics library in ROM like the Macintosh.

eComstation Demo CD In Action With Firefox 10.mp4
This is a demonstration of the eComstation demonstration live CD running, with an upgraded version of Firefox 10. This demonstrates how eComstation, which is based on IBM OS/2, is a very capable OS.

Tandy WinMate Demonstration.mp4
This is sort of a walk through of Tandy WinMate using its own built in multimedia help narration. This shell was bundled on Tandy Sensation computers.

Viewing YouTube under Windows NT 3.51 in 2012.mp4
Not possible any more, but in 2012 one could still use the older flash plugin to view Youtube with the SeaMonkey or Firefox 2 browser under 32-bit Intel Windows NT 3.51. This is interesting looking as it uses the same Program Manager and window management interface as Windows 3.1, but has similar 32-bit API capabilities as Windows 95 and NT 4.

VisiCorp Visi On 1983 Promotional Video (kc4wFeVvKTI).mp4
I did not create this one, but I have saved it here for preservation. It is a 1983 promotional video of VisiCorp Visi On, that appears to show off a pre-release versions of Visi On and everything it can do. Aside from the interesting assortment of vintage computers, it appears to show Visi On running on a Wang Professional Computer - a machine that is not IBM PC compatible but had a higher resolution graphics display than the IBM PC.