Data transfer is the movement of digital information from place to another. Typical data is transferred to and from a computer system. Data transfer can be done using the Internet as well as devices that can connect to a computer. When a data transfer is occurring, the amount of data being sent and received is called the data transfer rate.
Internet
When a browser is opened to connect to the Internet, data transfer is occurring. Data from a web page is being sent and processed by the browser to display each web page. Sending information online, whether via a web form or an upload, is another way to transfer data. Another example of data transfer over the Internet is Voice Over Internet Protocol (VOIP), such as services like Vonage.
Downloading
When a file is downloaded on the Internet, the data is being transferred in packets that are being sent electronically and received by the cable or DSL modem. The packets are of data are saved on the computer until the entire file is received. Sometimes there are slowdowns and disconnections that can cause problems with the data transfer.
Cameras
Data such as pictures that are stored in a camera can engage in data transfer when the device is connected to a computer. Data transfer occurs when the data is copied from the camera to the computer as well as when the data or pictures are viewed on the computer screen or display.
Flash Drive
Data that is transferred from a device such as a flash drive to a computer is another example of data transfer. Data can be retrieved from as well as sent to a flash drive. When a file is saved on the flash drive, the computer is sending electronic data to the memory on the device. Data that can be transferred to a flash drive includes various types of files including music, pictures and documents.
Hardware Devices
Hardware devices that connect to a computer also perform data transfer. A computer can have an internal sound card, video card or a TV tuner card installed. Each of these devices can either receive an input from a source or send an output to a device. Each of these inputs and outputs is engaging in data transfer for an audio or a video signal.
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