Friday, November 5, 2010

Supercomputers

Supercomputers, just like any other typical computer, have two basic parts. The first one is the CPU which executes the commands it needs to do. The other one is the memory which stores data. The only difference between an ordinary computer and supercomputers is that supercomputers have their CPUs opened at faster speeds than standard computers. This certain length of time determines the exact speed that a CPU can work. By using complex and state-of-the-art materials being connected as circuits,supercomputer designers optimize the functions of the machine. They also try to have smaller length of circuits connected as possible in order for the information from the memory reach the CPU at a lesser time. 

Supercomputers have been designed to do complex calculations at faster speeds than other computers. Its designers make use of 2 processes for the enhancement of its performance.The first method is called pipelining.It does complex operations at the same time by grouping numbers which have the same order that it calculates and these are passed to the CPU in an orderly manner. The circuits in the CPU continuously perform the operations while data is being entered into it. 

Today, supercomputers are typically one-of-a-kind custom designs produced by "traditional" companies such as Cray, IBM and Hewlett-Packard, who had purchased many of the 1980s companies to gain their experience. As of October 2010, the Tianhe-I super computer is the fastest in the world; it is located in China.

NASA Advanced Supercomputing Facility below:







 

 

Cray 1 Supercomputer below:









 

 

Reference:

1. http://www.computermuseum.li/Testpage/Cray-1-Supercomputer-1976.gif

2. http://en.wikipedia.org/wiki/File:Columbia_Supercomputer_-_NASA_Advanced_Supercomputing_Facility.jpg

3. http://en.wikipedia.org/wiki/Supercomputer

Mainframe Computers

Mainframes (often colloquially referred to as Big Iron[1]) are powerful computers used mainly by large organizations for critical applications, typically bulk data processing such as census, industry and consumer statistics, enterprise resource planning, and financial transaction processing.
The term originally referred to the large cabinets that housed the central processing unit and main memory of early computers.[2][3] Later the term was used to distinguish high-end commercial machines from less powerful units.
 

 An IBM 704 mainframe below:















Latest Mainframe below:














 

References

  1. ^ "IBM preps big iron fiesta". The Register. July 20, 2005. http://www.theregister.co.uk/2005/07/20/ibm_mainframe_refresh/. 
  2. ^ Oxford English Dictionary, on -line edition, mainframe, n
  3. ^ Ebbers, Mike; O’Brien, W.; Ogden, B. (2006). "Introduction to the New Mainframe: z/OS Basics" (pdf). IBM International Technical Support Organization. http://publibz.boulder.ibm.com/zoslib/pdf/zosbasic.pdf. Retrieved 2007-06-01. 
  4. ^ "Get the facts on IBM vs the Competition- The facts about IBM System z "mainframe"". IBM. http://www-03.ibm.com/systems/migratetoibm/getthefacts/mainframe.html#4. Retrieved December 28, 2009. 
  5. ^ "Largest Commercial Database in Winter Corp. TopTen Survey Tops One Hundred Terabytes". Press release. http://www.wintercorp.com/PressReleases/ttp2005_pressrelease_091405.htm. Retrieved 2008-05-16.