Computing at ESO through the ages

In this historical image, taken in 1974 in the ESO offices in Santiago, Chile, we can see the Austrian astronomer Rudi Albrecht, pencil in hand, poring over code in front of a teletype. He was working on software for the Spectrum Scanner attached to the ESO 1-metre telescope located at the La Silla Observatory. The data were processed in Santiago using the Hewlett Packard 2100 minicomputer which can be seen behind the printer (with two 7970 tape drives, a 7900 hard disk and a 2748 paper tape reader). This bulky computer, with one processor and a breathtaking 16 kilobytes of magnetic-core memory (!), stored the results on magnetic tape, ready for further processing by visiting astronomers on computers at their home institutes. To handle files on tape that were larger than the available memory, Albrecht developed a virtual memory system, which he contributed to the Hewlett Packard Software Center.

Crédit:

ESO

À propos de l'image

Identification:potw1223a
Type:Photographique
Date de publication:4 juin 2012 10:00
Taille:5598 x 3744 px

À propos de l'objet

Nom:European Southern Observatory, Historical Image
Type:Unspecified : People : Scientist
Catégorie:People and Events

Image Formats

Grand JPEG
5,7 Mio
JPEG taille écran
253,3 Kio

Zoomable


Fonds d'écran

1024x768
239,4 Kio
1280x1024
362,2 Kio
1600x1200
497,8 Kio
1920x1200
583,1 Kio
2048x1536
764,2 Kio

 

Voir aussi notre