General Information

Serial #

1226A01167

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

METAL & SYNTHETIC CASING & WORKING PARTS

Dimensions

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

Length

56.0 cm

Width

42.5 cm

Height

17.3 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

Hewlett Packard

Country

United States of America

State/Province

California

City

Cupertino

Context

Country

Canada

State/Province

Unknown

Period

1970'S-1980'S

Canada

AMERICAN-MADE COMPUTER PERIPHERAL USED WITH CANADIAN PRODUCED POSITION LOCATING SYSTEM BYGEODETIC SURVEY OF CANADIAN DEPT. OF ENERGY, MINES, & RESOURCES. THIS SYSTEM ENABLED SURVEY OF CANADIAN SUBARCTIC WITHOUT USING MANUAL METHODS SUCH AS TRIANGULATION CHAINS.

Function

DEVICE WHICH PHOTO-ELECTRICALLY READS DIGITAL INFORMATION FROM PUNCHED PAPER TAPE & INPUTS IT INTO COMPUTER FOR PROCESSING. IN THIS CASE, DATA CONSISTS OF MEASUREMENTS OF DOPPLER SHIFT OF SATELLITE TAKEN FROM GROUND BY SURVEYORS; COMPUTER THEN TRANSLATED DATA INTO GEOGRAPHIC POSITION.

Technical

1970S PERIPHERAL, ONE OF SEVERAL MADE BY HEWLETT-PACKARD. IT WAS USED WITH EARLY SATELLITE-BASED POSITION LOCATING SYSTEM USED IN NAVIGATION, SURVEYING ETC. IT MADE USE OF DOPPLER EFFECT & WAS PRECURSOR TO 1980S-1990S GPS TECHNOLOGY.

Area Notes

Unknown

Details

Markings

BLACK LETTERING ON FRONT READS '2748B TAPE READER/ HEWLETT-PACKARD'/ LABELS ON BACK READS 'HEWLETT-PACKARD/ MODEL 2748B/ S/N 1226A01667' & 'HEWLETT-PACKARD USA/ 2201314-15'/ BLACK LETTERING ON BACK/ WHITE LETTERING FOR CONTROL FUNCTIONS ON FRONT BUTTONS/ PARTIAL EMR INVENTOR & CONTROL LABEL ON FRONT WITH RC/CR 633 024569 & EQ CODE D'EQUIPE 7025-00-280-0782'

Missing

APPEARS COMPLETE

Finish

BRUSHED METAL FRAME/ TEXTURED GREY CASING SIDE & TOP PANELS/ LIGHT GREY TEXTURED FINISH ON FRONT PANEL/ LIGHT GREY ENAMEL PAINTED MECHANISM CASINGS ON FRONT WITH BLACK SYNTHETIC BUTTONS & PARTS, METALLIC PARTS/ BRUSHED METAL CARRYING HANDLES WITH BLACK SYNTHETIC GRIPS.

Decoration

BLACK, WHITE, BLUE HP LOGO PLATE ON FRONT & SIMILAR LABEL INSET INTO SYNTHETIC HANDLE GRIPS