CMA Logo
Pic 1 Pic 2 Pic 3 Pic 4 Pic 5
Slide
  Home
About Us
Exhibits
From the Curator
FAQ
Hall of Fame
Hours
Membership
Slide Show


Now Available

IBM SPEAKERS BUREAU SLIDE SHOW

Slide 52
Macaroni Box II

Courtesy: IBM Corporation

Felt had solved the over-rotation problem by providing positive stops that were activated by the keys themselves.

He knew his machines must calculate faster than accountants, many of whom could mentally add four columns of figures at one time.

<< Previous | Index | Next >>



2006 San Diego Computer Museum
Questions about the website? Email us.

MEMBER