What is a card reader?

In the descriptions of computers and laptops you can often find the word "card reader". In addition, devices with this name can be found on the shelves of shops and separately from computers.

About what a card reader is, we'll cover in this article.

Card Reader: Definition

So, what is this - a card reader? By the name you can guess that it is somehow connected with maps. And really: the card reader is a device for reading memory cards. However, although the word "card reader" literally means "card reader", the card readers can also write data to the card.

Cardriders are separate, and thenconnect to the computer via USB-port, and are built-in. In addition, a card reader is sometimes referred to as a hole into which a memory card is inserted on a mobile phone, although in most cases in such cases the word "slot" is still used.

Card readers usually support several formatsmemory cards at once. Since cards of different formats differ in size, for each of them a separate connector is provided in the card reader. And if you are faced with the fact that the card can not be read, you may have mixed the connectors. However, it may be in another - read our article Why does not see a memory card.

In addition to devices for reading memory cards,card readers can also be called other devices for working with cards. In particular, smart card readers that serve as a kind of key: a smart card identifies the user and allows him to log into the system, go through turnstiles, etc.