Punch: Difference between revisions
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== | ==Storing information by punching holes into flat media== | ||
On looms, mechanical music instruments, telex paper stripes | |||
Before the 1970, programming and data entry was done - if not by manual entry on a switchboard - via punched cards. One line with up to 80 characters on one card: that made a nice pile for 300 lines of programming code or data. | Before the 1970, programming and data entry was done - if not by manual entry on a switchboard - via punched cards. One line with up to 80 characters on one card: that made a nice pile for 300 lines of programming code or data. | ||
The project has several branches: | |||
===[http://www.punctum.com/interest/punch/index.en.html Virtual Punched Card Museum]=== | |||
This is in its 2nd stage, with about 400 punched cards shown, distributed over a set of application areas. Still missing are the cards donated by american collectors, and the non-card items (paper stripe, loom ribbon, mechanical music media, hotel keys etc. | |||
===Key punch emulator=== | |||
There are several ones on the Internet (c.f. link list below). Desired features would be: | |||
* Usage of the card images from the virtual museum | |||
* Generation of an image which can be printed with proper diemensions | |||
* Selection of code sets | |||
* Overpunching | |||
* Realistic sound of an IBM 029 | |||
* Usage of a tabulation card | |||
===Punch Card Reader=== | |||
Again, there are services on the Internet which do this, for piles of card images, and not too cheap. | |||
[http://www.kloth.net/services/cardpunch.php Cardpunch] on kloth.net is a nice emulator for card punching. | [http://www.kloth.net/services/cardpunch.php Cardpunch] on kloth.net is a nice emulator for card punching. | ||
http://www.punctum.com/interest/punch/img/c0093.jpg | |||
Revision as of 16:28, 17 July 2017
Storing information by punching holes into flat media
On looms, mechanical music instruments, telex paper stripes
Before the 1970, programming and data entry was done - if not by manual entry on a switchboard - via punched cards. One line with up to 80 characters on one card: that made a nice pile for 300 lines of programming code or data.
The project has several branches:
Virtual Punched Card Museum
This is in its 2nd stage, with about 400 punched cards shown, distributed over a set of application areas. Still missing are the cards donated by american collectors, and the non-card items (paper stripe, loom ribbon, mechanical music media, hotel keys etc.
Key punch emulator
There are several ones on the Internet (c.f. link list below). Desired features would be:
- Usage of the card images from the virtual museum
- Generation of an image which can be printed with proper diemensions
- Selection of code sets
- Overpunching
- Realistic sound of an IBM 029
- Usage of a tabulation card
Punch Card Reader
Again, there are services on the Internet which do this, for piles of card images, and not too cheap.
Cardpunch on kloth.net is a nice emulator for card punching.
