General Information

Serial #

3789

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

FERROUS METAL CASING/ SYNTHETIC CONTROLS & PARTS/ METAL PARTS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

48.8 cm

Width

31.5 cm

Height

8.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Computing Technology

Category

Digital peripheral devices

Sub-Category

N/A

Manufacturer

AKA

Norpak

Country

Canada

State/Province

Ontario

City

Kanata

Context

Country

Canada

State/Province

Ontario

Period

1982-1985

Canada

This decoder is part of Canadian developed Telidon videotex technology created by the Communications Research Centre. The Telidon program began on August 15, 1978 and ended on March 31, 1985.

Function

The Hemton EPS 1 was an electronic projector system used for demonstration and display purposes. It was used to decode and display Telidon graphic images in areas like shopping malls or businesses.

Technical

This decoder used a microprocessor and a 1200 baud modem to decode and convert communications data code to something that was displayable on a television display screen. This decoder used a bit plane that is a dot by dot image structure. While the graphic was not high quality, it was quite reasonable and the code was designed to be capable of expanding to handle higher resolutions. The system was designed to be forward and backward compatible, meaning it had the capability of displaying existing and future images, taking advantage of lowering memory costs to improve Telidon technology over time. 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. The Hemton EPS 1 was an electronic projector system used for demonstration and display purposes. It was loaded with a number of Telidon pages, which the machine would display sequentially or with Random Access memory. This equipment was developed as part of an effort to make Telidon technology commercially viable and profitable.

Area Notes

Unknown

Details

Markings

DECAL ON UNDERSIDE READING 'norpak CANADA/ MODEL EPS-1/ SERIAL 3789'/ GREY & RED LETTERING ON FRONT READING 'HEMTON'[?] & 'EPS 1'/ BLUE DECAL READING 'VERIFICATION-CRC/ 22581'/ WHITE PRINTED CONTROL FUNCTIONS ON BACK

Missing

N/A

Finish

CASING PAINTED DARK NAVY BLUE/ CASING FRONT & BACK PAINTED BLACK/ BLACK & WHITE SYNTHETIC/ PLATED PARTS

Decoration

N/A