KMODDL

"The Kinematic Models for Design Digital Library is an open access, multimedia resource for learning and teaching about kinematics – the geometry of pure motion – and the history and theory of machines. KMODDL is a pedagogical space designed for use by teachers and researchers,... The original core of KMODDL is the Reuleaux Collection of Mechanisms and Machines, an important collection of 19th-century machine elements held by Cornell University’s Sibley School of Mechanical and Aerospace Engineering."
KMODDL

Security digest

"This site is dedicated to preserving the history of early computer security digests and mailing lists, specifically those prior to the mid 1990's. This includes the Unix 'Security Mailing List', through to the Zardoz 'Security Digest' to the Core 'Security List', i.e. those preceeding BugTraq. These forums are a valuable insight into the embryonic development of the field of computer security, especially as it relates to the Internet, and the development of the Doctrine of Disclosure."

The 'Security Digest' Archives.

Computer history

Some online sources about computers’ history:

Old-computers
A .com site - features a collectors section.

Computer history museum
Missing some info but includes even robots.

Wikipedia pages about computers, home computers, and pesronal computers.
I found the ZX photo there.

Personal timeline:
Sinclair ZX Spectrum
Amstrad CPC 464
Acorn A3000
The first home computer with a RISC and not the PowerPC based computers as Apple stated in some ads (~1990).

Favorite “computing” device:
The Antikythera mechanism (research project).

BugGuide

Nice site - index about bugs.

GUI timeline

The timeline of the graphical user interface environments.
The wikipedia alternative.

Unworkable devices

And speaking about museums, have a look at the museum of unworkable devices.

Amazing!!

Don’t forget to check out the overbalanced wheels section (favorite non-workable device ever).

Retro technology

I observed that the word balancing and the word wheels in the label cloud on the left sidebar of my blog are bigger than other words and I remembered a page about monowheels. The page is part of the museum of retro technology.