A software scheme for eliminating transmission errors when sending files. These schemes send data in small chunks called packets, then check each packet for errors. If the software detects an error, the protocol resends the packet. If no errors are detected, the next packet is sent. Common file-transfer protocols include Xmodem, Ymodem, Zmodem, and Kermit.
Full duplex is the usual mode for the majority of data transmissions.
A compressed graphics file format common on the Internet. Most commonly used in fax transmission. Formats are specified by tags. The extensions include text flow around floating figures, fill-out forms, tables and mathematical equations, etc. HTML was invented by Tim Berners-Lee while at CERN, the European Laboratory for Particle Physics in Geneva.