How Computers Work.
Recently recovered & scanned in by the good folks at BoingBoing, this was an early textbook explaining the fundamental concepts & inner workings of modern computing systems. I believe a slightly different edition of this book was my own introduction to computers when I was in 6th grade or so, which explains a lot about my approach to using them.
posted by scalefree
on Dec 22, 2011 -
The simulated brain
- "The scientists behind Blue Brain
hope to have a virtual human brain
functioning in ten years... Dr. Markram began by collecting detailed information about the rat's NCC
, down to the level of genes, proteins, molecules and the electrical signals that connect one neuron to another. These complex relationships were then turned into millions of equations, written in software. He then recorded real-world data -- the strength and path of each electrical signal -- directly from rat brains to test the accuracy of the software." Is it possible to digitally simulate
a brain accurately? Can it only be analog
? And are there quantum effects
to be considered
? (previously 1 2 3 4
) [more inside]
posted by kliuless
on Jul 18, 2009 -
The coming memristor revolution in electronics and how it works.
The newly created memristor, only the fourth fundamental fundamental type of passive circuit element, has the promise of computing advances both prosaic (faster, cheaper and "bigger" flash drives) and momentous (relatively effortless mimicry of brain cells and their activity). This is the story of the memristor's genesis, told by R. Stanley Williams, the leader of the team that created the device. [more inside]
posted by NortonDC
on Dec 7, 2008 -
is a unique search engine for science videos focusing on Physics, Chemistry, and Space. For example, things
to do with sulfur hexafluoride
. Still growing, the editors are presently indexing other scientific fields of study including Geology, Psychology, Robotics and Computers. Ever wonder why things go bang
posted by netbros
on Aug 7, 2008 -
The Anonymity Experiment
. Is it possible to hide in plain sight? Privacy-minded people have long warned of a world in which an individual’s every action leaves a trace, in which corporations and governments can peer at will into your life with a few keystrokes on a computer. Now one of the people in charge of information-gathering for the U.S. government says, essentially, that such a world has arrived.
posted by amyms
on Feb 16, 2008 -
A computer aided simulation builds a spiral galaxy from its beginning
. In all, 390,000 particles were placed in an arrangement similar to a newborn galaxy. The end result after three months is an event that is believed to take billions of years to occur. (animation)
posted by samsara
on Aug 7, 2002 -
"The smartest scientist on the planet."
[NYT reg req] "Conducting experiments on a computer, where he says he has logged 100 million keystrokes in the last 10 years, Mr. Wolfram wrote simple programs that generated odd and intricate patterns to test his ideas about complexity. He argues that natural phenomena can be explored as if they were, in fact, computer programs." Stephen Wolfram's own company (Wolfram Media Inc.) is now publishing his 1,197-page book - "A New Kind Science
" - which was kept secret until now. They claim "..he is proposing a paradigm shift. A new twist on everything.." in explaining how the universe operates. Sounds big. Is it really?
posted by Voyageman
on May 11, 2002 -
Brain Cells Used To Make Working Semiconductor
"This is the first direct functional interfacing of a living neuronal network with an electronic semiconductor chip," said co-author Dr. Peter Fromherz of the Max Planck Institute for Biochemistry in Munich, Germany, in an interview with Reuters Health. "It is a further step on our road to combine the elements of brains and computers," he added.
posted by Alwin
on Aug 28, 2001 -