Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

14

Ou

S/O

Brevets

S/O

Description générale

Synthetic disk/ Paper label

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

13,3 cm

Largeur

13,3 cm

Hauteur

S/O

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Technologie informatique

Catégorie

Dispositifs numériques

Sous-catégorie

S/O

Fabricant

Ou

Sun

Pays

United States of America

État/province

Inconnu

Ville

Inconnu

Contexte

Pays

Canada

État/province

Ontario

Période

1988+

Canada

A piece of computer software used at the David Dunlap Observatory at the University of Toronto, one of Canada’s most important astronomical observatories The David Dunlap Observatory opened in 1935 as the result of a bequest from the wife of David Dunlap. The telescope was a 74 inch (188 cm) reflector built by Grubb Parsons of Newcastle-upon-Tyne in England. The 74 inch was then the largest telescope in Canada (surpassing the 72 inch telescope of the Dominion Astrophysical Observatory in Victoria) and became the second largest in the world after the 100 inch Hooker Telescope of the Mt. Wilson Observatory outside Los Angeles. DDO's reputation grew and following WWII, it began to graduate most of the astronomers produced in Canada with University of Western Ontario far behind. Beginning in the 1960s a number of other astronomy departments were created but UofT/DDO held its place, a position it probably still holds. The DDO had a good technical staff which gave them an advantage and, with most of the 1940s to early 1970s top astronomers coming from UofT, grants from NRC and then ENSERC were almost guaranteed and allowed UofT's top astronomers -- Hogg, van den Berg, Fernie, Bolton, Kamper, Martin, etc. to acquire or build some of the best equipment available in university observatories. For optical observatories, only the DAO had technical staff and budgets that surpassed those of DDO. In 2007, citing increasing light pollution, the University of Toronto announced plans to sell the Observatory property. In June 2008, it was sold to Corsica Development Inc., a subsidiary of Metrus Development Inc. and the Observatory was closed. In 2009 the Observatory buildings and 80% of the site were designated a cultural heritage landscape. Also in 2009 Corsica and the Royal Astronomical Society of Canada, Toronto Centre announced an agreement allowing the RASC to provide public education and outreach programs at the observatory, and to operate the 188 cm telescope.

Fonction

Network File System (NFS) is a network file system protocol originally developed by Sun Microsystems in 1984, allowing a user on a client computer to access files over a network in a manner similar to how local storage is accessed (Ref. 2).

Technique

Computer software for an unknown computer used with an astronomical measuring engine, the Perkin-Elmer PDS machine. This was a device for digitally measuring photographs, used to measure both stellar and galactic spectra as well as direct images of the sky taken with the DDOs 74 inch telescope and plates acquired by Sidney Van de Burgh at the 48 inch Mt. Palomar Schmidt telescope. Sun Microsystems was a company that sold computers, computer components, computer software, and information technology services. Sun was founded in February 1982. At its height, Sun headquarters were in Santa Clara, California. In 2010 Sun was acquired by Oracle Corporation and merged with Oracle USA, Inc. to become Oracle America, Inc.

Notes sur la région

Inconnu

Détails

Marques

White lettering on label reads 'sun/ microsystems' with logo/ Black lettering on label reads 'PCPNFS™ Configuration Diskette #1 of 7/ Version 3.0/ Copyright © 1986, 1987, 1988 Sun Microsystems, Inc./ Copyright © 1984, 1985 Locus Computing Corp./ Copyright © 1984, 1985 M.I.T./ Unauthorized use, duplication, or distribution/ is strictly prohibited by Federal Law.' and 'Part No. 740-1007-03'/ Lettering stamped on disk back reads '090188'

Manque

Appears complete

Fini

Black with purple label

Décoration

White Sun logo on label