Artifact Details

Title

EXACTUS

Catalog Number

XB36.79

Type

Physical object

Date

ca.1950

Manufacturer

Exactus Business Machines

Place Manufactured

England

Dimensions

1/4 x 3 x 4 1/4 in.

Description

A linear form of the simple Pascal two function calculating device that uses complement arithmetic. See also B150.80. Use. Addition or subtraction is carried out by dialing the numbers starting with the least significant. A carry is performed by moving the final digit around the corner to the next linear register.. Mini-Add on front of object

Category

Calculator: mechanical

Credit

Gift of Gwen and C. Gordon Bell

Lot Number

X6288.2012