A card reader scans data on a media card and communicates it to a computer. It operates by plugging it directly into your computer through the USB port or other peripheral port. It contains one or more card slots designed to accommodate different card types. It is commonly used to transfer files from the card to the computer for storage, editing, or printing (for example, images from a digital camera to your computer). Some readers are also capable of handling data from the computer onto the card.
Different types of readers
Single card type – This is the basic type and can only read one media card format. Similar to a flash drive it plugs directly into your computer’s USB port and does not require a cable.
1. Multicard type – This kind features two up to nine card slots in different formats. Because of its bulk, it usually requires a peripheral cable to connect it to the computer.
2. Series card type – This type features two or more slots in the same format. For example, it can have three SD card ports for reading three SD cards.
Readers can also be classified according to their purpose. There are readers (memory) that is used for communicating with a smart card or a flash memory. Other types can be used to scan and electronically save business cards. Readers can also be used to scan cards containing magnetic data strips.
Buying tips
1. Choose a card reader with a USB 2.0 interface to ensure compatibility with most printer models. If you’re going to buy a reader to transfer large files, look for one with a FireWire connection.
2. Choose a card reader with a high transfer rate for quicker file transfers.
