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Archive for the ‘Z_others’ Category

Overwrite and Duplicate Write to a block

March 25th, 2010

All writes that go to the same block ID are considered overwrite (write over the same place).

However, duplicate writes are writes that have the same content, they may go to the same block, or they may not.

So, we cannot conclude the number of overwrites is greater than the number of duplicate writes, or the other way around. Generally, it’s much harder to identify duplicate writes than overwrites, because detecting content duplication requires manipulating a much larger amount of data.

Z_others

Apply Chaper 9 of LDD to Real LED lights

August 13th, 2009

By “LDD” I mean “Linux Device Driver”.

applying the parallel port to drive a LED and read a switch from tcl: link

The LED light mentioned in this article is called “Light-emitting diode“.

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A usable and free Image Host

August 4th, 2009

h-index

August 2nd, 2009

United Breaks Guitar

July 28th, 2009

Build your own Wall-E “computer”

April 16th, 2009

I’m sure many of you love the little robot named “Wall-E”, from the Hollywood movie of the same name. How about a Wall-E of your own? Wouldn’t that be cool?

So astonishing, someone made a Wall-E, completely DIY. And this Wall-E is a working computer! Following are two pictures of this masterpiece.

Read more…

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Finite Automata v.s. Markov Chains

April 2nd, 2009

The following description briefly tells the uses of the two models.

Finite automata and their probabilistic counterpart Markov chains are useful tools when we are attempting to recognize patterns in data. These devices are used in speech processing and in optical character recognition. Markov chains have even been used to model and predict price changes in financial markets.

from “Introduction to the Theory of Computation”, by Michael Sipser

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Practical Uses of Automata in Computer Science

March 31st, 2009

Automata theory deals with the definitions and properties of mathematical models of computation. These models play a role in several applied areas of computer science.

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What to do if you are loosing hair

February 15th, 2009

Are you loosing hair? And you are male?
Read more…

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Online Course on Multicore Architectures from Intel

February 15th, 2009

I have always been wondering why multicore is such a hot topic nowadays. Since the advent of this architecture, all big players have switched their assembly lines to produce this new chip. As a matter of fact, multicore is inevitable in the future. I guess we have to adapt to it, since we have no other options.
Read more…

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