When the staff goes to work, they put the time card on the magnetic card machine and record the time of arrival and departure from the unit, which is called punching in. It can be understood as "sign up and show your certificates", or as "please pay the bill, please settle the bill" and so on.
Extended data:
"Card" is a very common thing in modern society, such as credit card, shopping card, bus card, bank card, membership card and so on. , followed by the saying of "punching in", with smooth pronunciation and concise semantics.
Card swiping and punching machine: it is mainly divided into three categories: magnetic card, barcode card and ic card. At present, the most widely used attendance machines are magnetic cards and barcode cards. The main feature is that the original data is summarized by computer, and finally the report is printed by printer, which makes the inquiry more convenient. But the price is high and the operation is more troublesome. Generally applicable to units with more people and regular work and rest time.
IC card attendance machine is a new model that has just emerged recently. Its main advantages are easy to use and low price. In many units, all-in-one card has been realized, that is, it can be connected with telephone and rice sales system.
References:
Punch-Baidu Encyclopedia