Card Reader Definition/Meaning:
A machine that senses the data encoded on a card and translates it into
binary code that can be transmitted for further processing (see
also magnetic card, chip card), The magnetic card reader
can have a power-driven transport that will draw the card into the machine and
move it past the read head. In some designs there are cleaning brushes before
the read head. The direction of travel is reversed after the card has been read
and thus the card is returned to the operator. In designs used with automatic
cash dispensers, the direction of travel may not reverse if the card and/or the
associated identification number are not valid.
A slot reader is a relatively simple device for reading badges or plastic
cards. The badge or card is manually moved along a slot that guides it past a
sensing station. The data to be read may be encoded magnetically or printed in
bar code
or a machine-readable font. Since the rate of movement past the read head is not
controlled by the device, the sensing head and electronics are generally
designed to work over a range of speeds. Compared to a reader with a powered
transport the device is much cheaper and quicker. Some designs for use with bank
teller terminals can read the printed encoding on checks and the magnetic
encoding on plastic cards.
The chip card reader has a guide and a connector that engages contacts on the
card. When the machine senses that the card is in place and the related code has
been keyed in, die memory device embedded in the card can be read.
See also
punched card reader.
|
