Renseignements généraux

Nº de série

6265

Nº de partie

2

Nombre total de parties

12

Ou

S/O

Brevets

S/O

Description générale

METAL/ SYNTHETIC/ CERAMIC/ GLASS

Dimensions

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

Longueur

44,5 cm

Largeur

43,0 cm

Hauteur

34,5 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Technologie informatique

Catégorie

Périphériques numériques

Sous-catégorie

S/O

Fabricant

Ou

Norpak

Pays

Canada

État/province

Ontario

Ville

Kanata

Contexte

Pays

Canada

État/province

Ontario

Période

1980'S

Canada

Part of Norpak Information Provider System (IPS)-2 designed, developed & built in Canada as part of the Telidon system. The Telidon program began on August 15, 1978 and ended on March 31, 1985. The Information Provider System 2 (IPS-2) systems were purchased by service providers, like Informart, and made available to professional artists use to create content for Telidon field trails. This example was used by the National Museum of Science and Technology.

Fonction

The Notpak 3270 monitor receives and displays Telidon graphic images as part of Information Provider System 2 (IPS-2) system.

Technique

The images created for the Telidon System needed to be transmitted via a 1200 baud modem over narrow bandwidth telephone line. Accordingly, it was important for designers to make sure the system used a very small amount of data. The was especially the case as research conducted by Communications Research Center psychologists had determined that the system needed to be able to load images in about under 20 seconds as, otherwise, users would lose patience. Designers therefore worked to create a fairly efficient encoding and to get the number of bytes per page down, their target being the 1 to 2 kilobyte range. The system used a PDP 11 computer, a decoder and a floppy disk drive. The PDP 11 computer was an early version of the smallest of the mini computers, and contributed to the IPS-2 high cost. A professional artist would use the IPS-2 system , including this monitor, to create a graphical image, which software then converted into picture description instructions that could be uploaded to a central database, transmitted via a network, received and converted into something displayable on a home television screen by a decoder. While the IPS-2 system was very expensive, according to Douglas O'Brien, it did a great job at creating images for the Telidon system. In 1983, the North American Presentation Level Protocol Syntax (NAPLPS) graphics language develop from the Canadian Telidon system was formalized, ratified and adopted as a world standard for graphics transmission by computer.

Notes sur la région

Inconnu

Détails

Marques

PRINTED ON FRONT: ‘norpak/ COMPUTER DISPLAY SYSTEMS'/ MFR'S STICKER ON BACK READS: ‘norpak Canada/ Model 3720/ Serial 6265/ 115 VAC 60 HZ/ MADE IN CANADA'/ PRINTED ON BACK: ‘ED, GREEN/ BLUE COMP/ SYNC/ FUSE 3 A S.B.'

Manque

Appears complete

Fini

VARIOUS SHADES OF GREY PLUS BLACK WITH BLACK & WHITE PRINTING & TRIM.

Décoration

S/O