A card reader, known as a media card reader, is a data input and output device that reads and writes data from a memory card.

During the first several decades of the computer industry, punched card readers came first. While modern card readers are electronic devices which can read plastic cards. These cards are embedded with a barcode, computer chip, or other storage media.

Types

1. Smart card readers
2. Memory card readers
3. Access control card reader
4. Banking card readers

Reasons To Use It

To read or write data with a complex device is inconvenient; that is why we need a card reader. Here are some reasons:

1. Higher Speed:
The reading and writing speed of the memory card through the card reader is usually higher than that of connecting the memory card through the device.

2. Work Reliably:
It usually gets better results unless the memory card itself is damaged, or there are bad sectors. This reason is that “smart” phones and digital cameras are apt to stop and suspend bad sectors, preventing further access to the card. While the “dumb” reader swallows the error and then moves forward.

3. Universally-Used Device:
It works with memory cards. Without a card reader, you have to replace a suite of cables and install new drivers if you want to change a new mobile phone or a digital camera. It can read not only your memory cards but also others.

4. Easy To Use:
It doesn’t require any other drivers.

5. Waterproof And Durable:
Card readers and memory cards they connected are unlikely to wear. Without using a card reader, connectors on the device are quickly fail so that a potentially expensive repair is required if you often transfer data between your device and the PC.

6. Without Battery:
Devices should consume their batteries to transfer data directly to the PC. If the battery is fully drained, your data will be damaged. However, if you use a card reader, such a worry can be prevented.

Sum up!

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