quinta-feira, 11 de novembro de 2010

Profª Elisabeth

Estou procurando um assunto para novas postagens !

quinta-feira, 25 de março de 2010

Supercomputers


Supercomputers are computers with a high speed memory processing and storage. is used mostly in scientific research, military areas, chemical industries, nuclear power plants.
In turn, eventually turning cliche sci-fi movie.
Its clock runs our reality, here's more information about some of the most powerful computers in the world the Blue Gene / L and ASC Purple.

Blue Gene / L

The Blue Gene / L is currently the fastest supercomputer in the world, reaching 360 Teraflops impressive with its 65,536 processors, also running a lightweight version of Linux. It is a collaborative project between IBM, the Lawrence Livermore Laboratory and the Department of North American Energy, and uses a cell design that can be expanded by adding blocks, without the risk of bottlenecks arising from such growth.

Recently the Blue Gene / L has been in the news when a group of scientists ran a simulation of the cerebral cortex of the complexity of half a mouse brain. But make no mistake, we're talking about eight million neurons, each with 8000 nerve connections. When there is simulating a brain of a mouse, the Blue Gene / L is mainly used in the simulation of biochemical processes involving proteins.


ASC Purple

The ASC Purple was born of a collaboration between the Lawrence Livermore Labs and IBM. Its peak processing is 100 Teraflops through a redundant network of 196 servers IBM Power5 SMP, containing a total of 12,544 processors, 50 terabytes of memory and 2 petabytes of storage capacity on disk.

The ASC Purple is currently being used to run performance simulations of nuclear weapons, which would normally be tested by underground detonations.

Only to facilitate Teraflop is a measure to calculate the capacity of supercomputers that means, Floating point Operations Per Second. =D

Programming Languages High-Level


Well, we now consider some programming languages with high level because they have a level of abstraction and intelligence and great that it has more in common with machine codes, but the language similarities humana.Um programmer high-level language not need to know in depth the architecture of the hardware or the processor. The high-level languages have lost these characteristics.
There are numerous high-level languages, but we can highlight:

* C / C + +
* Delphi
* Java
* PHP
* Visual Basic
* Lua
*Python

The high-level languages began to emerge in the second and third phase of the computers from the 70's.

Z80 - 8-bit microprocessor


All right, continuing the work, let's talk about the Z80 one of the older processors that were manufactured.
It went on sale in 1976, where he became a record in sales until the mid-80s.
It was the CPU of the famous MSX computers of 80 years.
It has only 40 pins, despite having fallen into disuse for computers, the Z80 is used quite yet in mp3 player, Game Boy, Game Gear, industrial automation, calculators, telephone exchanges and other types of machines.
Until 2009 it was used by NASA on-board computers to make equations.

ENIAC, the first PC


he ENIAC was first developed in 1943 during World War II to compute trajectories tactics that require substantial knowledge in mathematics, but only became operational after the end of the war.
It was a very obsolete computer, which used vacuum tubes made only simple calculations and flawed.
The Eniac only works with switches that took binary values of 0 and 1.

It became absolutely impossible and passed only ten years, but for his pioneering inspired the whole first generation of computers.
It's clock is low,could only perform 5000 additions per second, while a Pentium 100 MHz is capable of 300 million.
He is currently a museum piece, which marked the beginning of the history of computing

quarta-feira, 24 de março de 2010

Hello World ! Info News Fatec


First staff would like to introduce ourselves to you, we are the News and Info will be providing various files on both computers in the hardware and the software and the like. First we apologize for grammar, not quite mastered the language