Sending files as email attachments can be faster and easier. A physical telecommunications network which provides a basic connection between multiple sites or systems - onward connections to individual PCs or other devices at those sites or in those systems is provided by LANs or other types of network. Backbone networks interconnect to provide the global infrastructure over which the Internet functions. High bandwidth is generally equated with faster transmission of larger amounts of data. Bit The smallest data unit that a computer can recognise - either a 1 or 0.
Bitmap image Comprises a grid or raster of pixels to represent a graphical image.
Each pixel occupies a fixed location in the grid and is assigned a specific colour. Bitmap images can only be edited by altering the pixels, not by objects or shapes. Many photographs or images stored electronically are bitmapped and these can appear jagged or distorted if displayed or printed at too high a resolution. Bluetooth Bluetooth comprises a series of communications protocols and standards that can be harnessed to provide high speed, affordable wireless communications between devices within 10 metres of each other. Amplification and increased transmission power can raise this distance, although it is intended for local rather than long distance use.