« Master ECOMM - Nouveau corrigé en ligne | Page principale | CNAM - Architecture des systèmes »
vendredi, 01 décembre, 2006
CNAM - Cours architecture Système
Vous trouverez sous les liens qui suivent deux documents en accord avec le cours sur la multiplication au sein d'une UAL
- Un résumé des 3 versions de l'algorithme de la multiplication + la méthode Booth
- Un descriptif (en anglais), écrit par A.Booth dans lequel il explique le principe de la multiplication
Nota : Le second document est de piètre qualité, il est en effet issu d'un vieil ouvrage qui a été scanné.
Dr. Andrew BOOTH dans son labo
Professor Andrew Booth, aged 86, is one of a small group of computer pioneers whose work continues to benefit us today. He is both surprised and pleased to become a Fellow of Birkbeck, where he commenced his academic career in 1945 on a Nuffield Fellowship in JD Bernal's laboratory. His work focused on using electronic devices to solve complicated sets of equations resulting from crystallography research. "Bernal was the best boss a young man could wish for," he says. "If you had ideas and worked hard, he gave support and let you develop in your own way." By late 1946 Professor Booth was building one of the first computers in the UK.
He recognised the need for a storage device and developed the world's first drum store - on display in the Science Museum - and set up a company to manufacture them. Following a Rockefeller Fellowship at Princeton in 1947, Professor Booth returned to Birkbeck and built the prototype Simple Electronic Computer. He then demonstrated his All Purpose Electronic Computer in 1951. This was among the first generation of electronic computers, used in Bernal's lab and at UCL. The rights were acquired by the BTM company and the first BTM machine was sold in 1955, becoming the UK's best-selling range of computers throughout the late 1950s. He then applied his mathematical skill to build an algorithm to carry out multiplication, which was critical to improving the computer's performance.
The result, the Booth Multiplier, is still found inside Pentium processors in PCs today. "Looking back," he says, "it's interesting to find that the only features of the early computers still in use are the magnetic storage devices and the multiplication algorithm -pioneered at Birkbeck." Professor Booth founded Birkbeck's Electronic Computation Research Laboratory, which in 1957 became the Department of Numerical Automation - the first in the world dedicated to the study and teaching of computing - now known as the School of Computer Science and Information Systems. He moved to Canada in 1962, occupying high-level university posts, and lives today in British Columbia.
EditÈ le: vendredi, 01 décembre, 2006 2:16 PM
CatÈgories: News, Supports de cours