Ads
related to: heidi swapp memorydex 2-slot hole punch guide systemstaples.com has been visited by 100K+ users in the past month
1747 Olentangy River Rd, Columbus, OH · Directions · (614) 299-9425
- Get Ready for Travel
Shop Geoffrey Beene Luggage
Starting at $99.99 at Staples.
- Save on Health Essentials
Find Your Calm. Shop Aromatherapy
Starting at $21.49 at Staples.
- Brand Office Supplies
Better Product at a Better Price!
Office Supplies as low as $6.99
- Save on Office Supplies
Celebrate Black History Month With
Supplies From Black Owned Business
- Get Ready for Travel
ebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
A reproducing punch might have an additional read station after the punch station for verification. Punch magnets Machines that could punch cards, such as a reproducing punch, had hub entries for each card column. An impulse to one of those entries triggered the electromagnet that initiated the punching of a hole at that column position.
Herman Hollerith (February 29, 1860 – November 17, 1929) was a German-American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.
An IBM 80-column punched card of the type most widely used in the 20th century IBM 1442 card reader/punch for 80 column cards. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards.
To bind a document, the user first punches holes in the paper with a specialized hole punch. Pages must be punched a few at a time with most of these machines. If hard covers are desired, they must be punched as well. In bulk applications, a paper drilling machine may be used. Then the user chooses a spine size that will match the document.
Some 2-hole punches have an "888" marking on their paper guide, to assist punching all four holes into A4 paper. [ 5 ] Konica Minolta specifies that for European 4-hole arrangements, all holes should be 11 ± 1 mm from the nearest (i.e. long/spine) edge of the paper, [ 6 ] which is slightly at variance with ISO 838's specification of 12 ± 1 mm .
Jacquard cards were said to be stamped or cut, rather than punched. The first Jacquard cards were stamped by hand, sometimes using a guide plate. An improvement involved placing the card between two perforated metal plates, hinged together, inserting punches according to the desired pattern, and then passing the assembly through a press to cut the card.
As an aid to humans who had to deal with the punched cards, the IBM 026 and later 029 and 129 key punch machines could print human-readable text above each of the 80 columns. Invalid "lace cards" such as this pose mechanical problems for card readers. As a prank, punched cards could be made where every possible punch position had a hole.
Punchboards were often used by the slot-machine machine rackets as a wedge for pushing into communities where slot machines were illegal. [1] Punchboards used for gambling in California in the 1910s were a game "where the player puys for the privilege of inserting a disk in a covered hole on a board and punches out a number, which, if it ...
Ads
related to: heidi swapp memorydex 2-slot hole punch guide systemstaples.com has been visited by 100K+ users in the past month
1747 Olentangy River Rd, Columbus, OH · Directions · (614) 299-9425
ebay.com has been visited by 1M+ users in the past month