120 months they expire
No but the credit can expire.
Some cards expire, but some do not. On the paper it was glued on to, it should say, or on the back of the card.
no
Punch cards store data. That data can then be analysed by feeding the cards into a punch card reader.
no
No they don't.
Punch cards were used by computer programmers back when computers used punch cards. The cards were used to tell the computer what to do. Programmers had a machine that they used to write computer programs and it would punch the holes in the cards. It took a lot of cards just to write on program.
The student cards for the 10 hr and 30 hr course do not expire. Credentials as an OSHA Outreach Instructor DO expire, but not the student completion cards. They are discussing changing that in the future.
information. the position of the punch determines the value
Credit cards typically expire every 2 to 3 years and need to be replaced with a new card.
in 1881